site 967 hole a core 1h cored 0.0-9.3 mbs reflec- magnetii ... › publications › 160_ir ›...

GRAPE(g/cm3)

SITE 967 HOLE A CORE 1HReflec-

tance (°/c(550 nm)

T

Magnetiisuscepti

bility1

zJ-r-sr.

a_

GraphicLith.

±r>J•-•-•-•-

L>>i"-•-•-•--

j.-T-"-".1

•s•j•"

•a.•V•J•"-"-"-"-

^™;c1 1.5 0 20 0 100 200

instrument units.

Structure

-A

CORED 0.0-9.3 mbsf 967A-1H 1

5Y5/1To

10YR4/1

Description

NANNOFOSSIL OOZE and CLAY

Major Lithologies:The sediment in this core consists ofdark gray (10YR 4/1) to gray (5Y 5/1)NANNOFOSSIL OOZE, and gray (5Y5/1) CLAY.

Minor Lithology:Six dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS are present in thiscore. Most have sharp color contactsand are faintly to well laminated.Bioturbation is evident at sapropelboundaries.

General Description:The lighter-colored intervals in thedominant lithology display slight tomoderate bioturbation, whereas thedark-colored intervals arestructureless. Within the clay layers acolor grading from gray (5Y 5/1) topale brown (10YR 6/3) is present.

GRAPE(g/cm3)

Reflec-tance (%)(550 nm)

f\

>

•^*>̂>i;-;-;-;•;LLΛ J '•;;;;L^X["-"-V-"•|JΛ.J•JI ////J

ivi-.-.-.v.^>^~ •^Λ~-~-"-"-"-

L•V•>-•-•-•-•-•

i•̂ jf"-"-'-'-"

L-Vî -"-"."-'-1

^ :

LJ!Λ?'•-V-"-"-•

LV•J."1''-;;"-]-

J. J. Jr.".".".".'

L~±~^-~-~-~-~-

i££~~-~~-~~•~'-~

^vr••••••-•• 1

i•̂ i"-"-"""-"

^ ^

^ L • : • : - : • : - .

ictio

n

CO

1

2

3

_

4

5

6

7

3c

CDσ>

:oce

ne

.2?

EΦ"D

"E

A CORE

Structure

_

Λ

>>55

Δ

•Δ

Δ

ΔΔ

XΔ

H Δ>>55

A

Δ̂Δ

Δ

^ Δ

« Δ^ Δ

Δ

2H

stur

b

b

X

mpl

e

COCO

s

sC

S c

I

S

M

olor

O

5Y5/1To

1 πvπlUTπ6/2

CORED 9.3-18.8 mbsf

Description

NANNOFOSSIL OOZE AND CLAY

Major Lithology:The sediment in this core consists oflightly to moderately bioturbated gray(5Y 5/1) or light gray (5Y 6/1) to lightbrownish gray (10YR 6/2)NANNOFOSSIL OOZE together withinterbeds of gray (5Y 5/1)structureless CLAY.

Minor Lithologies:Five dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS are present in thiscore. All display intermittentlamination. Most are bioturbatedthroughout. Dark gray (N4) decimeter-thick beds of SILT and FORAMINIFERSILT are present in Sections 1 and 2.

General Description:Much of the core comprisesdecimeter-thick beds that display colorgrading from gray (5Y 5/1) clay to lightyellowish brown (10YR 6/2)nannofossil ooze. There are twomicrofaults in this core, one at the topof Section 4, the other toward the baseof Section 5.

1 1.5 0 20 0 100 200

GRAPE(g/cm3)

>

3^̂Λ

iJ\s~\\I

• / ^

j

J

j

{

j)/\

i


^ ~

^ ~ \. --*

T~

£y,

\,X.

~~*•*~»

J• ^

\

>

jJ

>i

Magneticsuscepti-

bility 1

/ I

çs

\

JJ

/

r

j

s/

h

s

I

SITE 967 HOLE

lete

r |

2

_

2_

-

a_

—

5_

;

6_

Z_

a_

-

a_

-

GraphicLith.

•.v. \

• - • . - . *-_

.".V ,-

• . v . '•^j

":.'".' ^

:." ^

:." t -

•.v.1 *•"

".V. \.'/.' ,-

— Lj

!Λ ^

'.':". ^

:.\ :•.v. \— .

L. J. J . .

J . J . JL

L J . J J . • 1 " J ;

J . J J . • 1 J ;

L x J L x J L x •

L x • L x J x

L ^ X ^ X ^

"x^x^xlx1x I•xlxJx1•x

L x J L x J L x •

ΛΛ!1:

actio

n |

\vCO

1

2

3

4

5

6

7

TC

ΦD)

* ^

Φ

Φoois

t

.CD

dd

leP

ε

A CORE

Structure

»

m

UJ

Δ

ΔΔ

Δ

^ Δ

55 Δ

55

Δ55

Δ

3H

stur

b

b

mpl

e

CO

CO

s

cooo

s

s

I

SS

M

olor

O

10Y7/1To5Y6/1

CORED 18.8-28.3 mbsf

Description

NANNOFOSSIL OOZE andNANNOFOSSIL CLAY

Major Lithologies:This core consists of light gray (10Y7/1) to gray (5Y 6/1) NANNOFOSSILOOZE and NANNOFOSSIL CLAY.

Minor Lithologies:Six dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. Most ofthese beds are bioturbated. They arebetween 0.5 cm to 14 cm thick andsome of them are composite,containing an interbed of dark gray(N4) pyritic clay. Decimeter-thick bedsof dark gray (N4) CLAY are present.These are color graded from dark gray(N4) clay to gray (5Y 5/1) nannofossilclay.

1 1.5 0 20 0 200 400

SITE 967 HOLE A CORE 4H CORED 28.3-37.8 mbsf 967A-4H 1

GRAPE(g/cm3)


Magneticsuscepti-

bility1

2_

i I i

1 1.5 0 20 0 200 400

GraphicLith.

•"-"-'•KZJ LIα•I•J L

iiil

a_.-.-.-;,

Structure

X

5Y5/1To

10YR6/1

Description

NANNOFOSSIL OOZE ANDNANNOFOSSIL CLAY

Major Lithology:The sediment in this core is gray (5Y5/1 to 10YR 6/1) NANNOFOSSILOOZE and NANNOFOSSIL CLAY,color banded at decimeter to meterscale.

Minor Lithologies:Twelve dark olive gray (5Y 3/2)through very dark gray (5Y 3/1) toblack (5Y 2.5/1) SAPROPELS occur.Most of these beds are finelylaminated. They are between 5 cm and25 cm thick.

SITE 967 HOLE A CORE 5H CORED 37.8-47.3 mbsf 967A-5H 1

GRAPE(g/cm3)


Magneticsuscepti-

bility1

3 _

t α :

GraphicLith. Structure

10Y6/2To

10Y7/2

Description

NANNOFOSSIL OOZE

Major Lithology:This core consists of light gray (10Y7/2) to gray (10Y 6/1) NANNOFOSSILOOZE.

Minor Lithologies:Nine dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. Thesebeds are composed of foraminifer-bearing and commonly siltynannofossil ooze between 5%-10%organic carbon concentrations. Most ofthese beds are finely laminated. Theyare between 3 cm and 20 cm thick andseveral of them are composite,containing one or two 0.2 cm to 5 cminterbeds or laminae of dark gray (N4)pyritic clay. A 10-cm thick bed ofFORAMINIFER NANNOFOSSILOOZE occurs at Section 5, 120-130

General Description:The dominant lithology contains paleand dark color bands on a centimeterto decimeter scale and is mottled inplaces. Some relatively foraminifer-richhorizons occur.

1 1.5 0 20 0 100 200

SITE 967 HOLE A CORE 6H CORED 47.3-56.8 mbsf 967A-6H i

GRAPE(g/cm3)


Magneticsuscepti-

bility1

Q_

I I l1 1.5 0 20 0 100 200

3_


X

10YR6/1To

10YR7/2

Description

NANNOFOSSIL OOZE

Major Lithology:The sediment in this core isNANNOFOSSIL OOZE color bandedat decimeter to meter scale through aseries of browns (10YR 6/1-10YR7/2).

Minor Lithologies:Twelve SAPROPELS occurthroughout this core. They rangebetween 2 to 25 cm in thickness andgenerally have sharp boundaries, areoccasionally laminated, and containforaminifers.

2 3 4 5 6 7 CC

GRAPE(g/cm3)

b L

Reflec-tance (%(550 nm)

?L

1i

20 I

Magneticsuscepti-

bility1

Is>sç

J

J

çy>"y/?

s

r

SITE 967 HOLE

eter

-

1 _

2_

3_

4 _

-

7 "

a_

i 50 100

GraphicLith

α x J L x J L x J L x 1 •

xVx X x X x

^x1x"1"x" i•x• i"

^x•^x•^x•^x•1:

x•^x•^x•V^x•

x•Vx•V•x

^ViV:x•Vx•Vx"

^x•vi•1-'

. X X X X .

. X X X X .

. X X X X .

. X X X X .

X X X X X. X X X X .

. X X X X .

. X X X X .

. X X X X .

. X X X X .

cgo

CO

1

?

3

4

5

6

7

cc

CDcn

CDio

cer

te P

CO

A CORE

Structure

11

11 P

••

\9

p

•

P

p

• 11

7H

stur

b

Q

mpl

e

COCO

s

S

1

M

oo

O

10YR7/2To5Y7/2

CORED 56.8 - 66.3 mbsf

Description

CLAYEY NANNOFOSSIL OOZE

Major Lithology:The sediment of this core is CLAYEYNANNOFOSSIL OOZE color bandedat decimeter to meter scale through arange of browns and grays (10YR-5Y). Foraminifers are occasionallyconcentrated as infillings in burrows.

Minor Lithologies:Six dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. Most ofthese beds are finely laminated. Theyare between 3 cm and 20 cm thick andseveral of them are composite,containing one or two 0.2-cm to 5-cminterbeds or laminae of dark gray (N4)pyritic clay.

GRAPE(g/cm3)

Reflec- Magnetictance (%) suscepti-(550nm)| bility1

^~^^>^

ç

ç3

>

*7

i

/

|

I

{VfI

\

>

)

11

SITE 967 HOLE

α> Gr<°> L2

1_ • I V J

~ " . J . J

2_ • ^ Λ

3_: .̂v

^ •- vi!

- • ; ^

5_•"J.V

β-••vi

a_ - ^ J

• , j . j

_•. J. j

caphic .oth g

CO

'u.-Vu: 1

L α. J. .

L J L .

L _ l_ J- ,

L _1_ J - .

L _l_ _1_ .

L _l_ _1_ .

L _l_ J - .

L -1- -L .

iVi1; 3L J . J. .

L JL J- .

L _l_ ^ .

L -L. J . . ~~™

L _I_ J . .

L J . X .

L X X .

L X X .

L X X .

L X X .

L X X .

L•V•^ 7

ΦCD

CD

CD

O

n

A CORE

Structure

•

•

•

8H

stur

b

Q

mpl

e

COCO

S

c

S

1

s

s

M

olor

O

10YR7/3To5Y7/1


Description


Major Lithology:The dominant sediment in this core isCLAYEY NANNOFOSSIL OOZE colorbanded at decimeter to meter scalethrough a range of browns and grays(10YR7/3-5Y7/1).

Minor Lithologies:Five dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. Most ofthese beds are finely laminated. Theyare between 3 cm and 20 cm thick andseveral of them are composite,containing one or two 0.2-cm to 5-cminterbeds or laminae of dark gray (N4)pyritic clay.

1 1.5 0 20 0 100 200

SITE 967 HOLE A CORE 9H CORED 75.8-85.3 mbsf 7 CC

GRAPE(g/cm3)


Magneticsuscepti-

bility 1

3_

GraphicLith.

1 1.5 0 20 0 200 400

Structure

10YR6/1To5Y7/2

Description

NANNOFOSSIL OOZE

Major Lithology:The dominant sediment in this core isNANNOFOSSIL OOZE color bandedat decimeter to meter scale through arange of browns and grays (10YR6/1-5Y7/2).

Minor Lithologies:Thirteen dark olive gray (5Y 3/2)through very dark gray (5Y 3/1) toblack (5Y 2.5/1) SAPROPELS occur.Most of these beds are finelylaminated. They are between 3 cm and20 cm thick, and several of them arecomposite, containing one or two 0.2-cm to 5-cm interbeds or laminae ofdark gray (N4) pyritic clay.

SITE 967 HOLE A CORE 10H CORED 85.3-94.8 mbsf 967A-10H i

GRAPE(g/cm3)


>

Magneticsuscepti-

bility1

_̂

a_

i I i

1 1.5 0 20 0 100 200


5YR6/1To

10YR6/4

Description

NANNOFOSSIL OOZE WITHFORAMINIFERS

Major Lithology:The dominant sediment in this core isslightly to moderately bioturbatedNANNOFOSSIL OOZE withFORAMINIFERS color banded atdecimeter to meter scale through arange of browns and grays (5YR6/1-10YR6/4).

Minor Lithologies:Five dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. Most ofthese beds are finely laminated. Theyare between 3 cm and 20 cm thick andseveral of them are composite,containing one or two 0.2-crri to 5-cminterbeds or laminae of dark gray (N4)pyritic clay.

SITE 967 HOLE A CORE 11H

GRAPE(g/cm3)

Reflec-tance (%(550 nm)

Magneticsuscepti

bility1

m

a_

GraphicLith.

-;+----

!{-;-;

CORED 94.8-104.3 mbsf 967A-HH_J

Structure

1 1.5 0 25 0 50 100

7.5YR5/6To

10YR8/1

Description


Major Lithology:The dominant sediment in this core isslightly bioturbated NANNOFOSSILOOZE and NANNOFOSSIL CLAYcolor banded at decimeter to meterscale through a range of browns(7.5YR 5/6-1 OYR 8/1).

Minor Lithologies:Decimeter thick white (1 OYR 8/1)beds of FORAMINIFER SAND andNANNOFOSSIL OOZE withFORAMINIFERS occur throughoutthe core.

SITE 967 HOLE A CORE 12H CORED 104.3- 113.8 mbsf 967A-12H 1

GRAPE(g/cm3)


Magneticsuscepti-

bility1

2_

3_

1 1.5 0 25 0 50 100


7.5YR6/2To

7.5YR7/2

Description


Major Lithology:The dominant sediment in this core isslightly to moderately bioturbatedNANNOFOSSIL OOZE withFORAMINIFERS color banded atdecimeter to meter scale through arange of browns and grays (7.5YR6/3-7.5YR7/1).

SITE 967 HOLE A CORE 13H CORED 113.8-123.3 mbsf

GRAPE(g/cm3)


Magneticsuscepti-

bility1

2 _


7.5YR6/4To

10YR7/3

Description


Major Lithology:The dominant sediment in this core isslightly to moderately bioturbatedNANNOFOSSIL OOZE withFORAMINIFERS color banded atdecimeter to meter scale through arange of browns and grays (7.5YR6/4-1OYR 7/3).

General Description:Sections 4, 5, 6, and 7 containsediment that has been disturbed bydrilling.

1.5 2 0 25 0 100 200

100-

105-

110-

115-

120-

125-

130-

135-

140-

wε

ISO-

1",'

an t, 1 r i

εs

3 0 —

3 5 —

4 0 —

4 5 —

DU

SB-

BO-

S S •

70

75-

βo-

|

SITE 967 HOLE A CORE 14X CORED 123.3- 129.1 mbsf

GRAPE(g/cm3)

Magneticsuscepti-

bility1Graphic

Lith.

a α α α a

\cc

Structure

2 -20 0 20

5Y7/2TO

10YR7/3

Description

CALCAREOUS OOZE

Major Lithology:The sediment in this core isunconsolidated gray to brown (5Y7/2-1OYR 7/3) CALCAREOUS OOZE.Foraminifers are concentrated inoccasional horizons.

SITE 967 HOLE A CORE 15XMagneticsuscepti-

bility1

T

2-P.

GraphicLith.

a a a π a

Structure

CORED 129.1 -138.7 mbsf

5GY7/1To5Y7/1

Description

CALCAREOUS OOZE

Major Lithology:The sediment in this core is gray(5GY 7/1-5Y 7/1) CALCAREOUSOOZE.

General Description:The entire core has been disturbed bydrilling.

-20 0 20

GRAPE(g/cm3)

i

1.5 1.75

Magneticsuscepti-

bility1

i

SITE 967 HOLE

| M

eter

-

1_

GraphicLith.

DD

D

DπD

DD

πD

DD

D

D a a a aa a a a a tα α π a a ia a α α a i

D α α a u

| S

ectio

n

1

cc

D 10 20

| A

ge

Eoce

nem

iddl

e

A CORE

Structure

16X

| D

istu

rbw

ww

Sam

ple

S

M

Col

or

5GY6/1


Description

CALCAREOUS OOZE

Major Lithology:The sediment in this core is green-gray (5GY 6/1) CALCAREOUSOOZE.

General Description:The core has been significantlydisturbed by drilling.

967A-15X 1

5

I0

| IS

so

as

30

3 5 —

4 0 —

4 5 _ i

SO—

55—

8 0 —

SS™™™*

70—

B0—

8 5 —

9 0 —i

SS—I

\"•'i.jk

i•St

I álβffls

1 i ' •

ISO-

967A-16X 1

' ' 5 — I- εo—I

30—C?

:35--4

CC

1 1P ' i

,— . 60—-ft

__ . gg__|t

— ]70—B

| _ | f— 75- :

— ! βO-

— 85-

— :90-

Qy

• _ • i o o — J 1

— ^iOS—

_ ; no—

_ J IS—;

.— 120—i;;

*:— ;iεs—;.;

: —' ,130—,;

• ? _ ( 3 5 — :| • _ J - :

i _ 140—

_ , 145—

"I—. ' 150—•"

GRAPE(g/cm3)

SITE 967 HOLE B CORE 1HMagneticsuscepti-

bility

÷ΛS

3- K

4 _

GraphicLith.

fe^fe

Structure

I "A

1 1.5 0 20 0 100 200

5Y4/1To

7.5YR6/4

CORED 0.0-5.3 mbsf

Description


Major Lithology:The dominant sediment in this core isslightly to moderately bioturbatedNANNOFOSSIL OOZE andNANNOFOSSIL CLAY color bandedat decimeter to meter scale through arange of browns and grays (5Y 4/1and 7.5YR 6/4).

Minor Lithologies:Two dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. Theuppermost of these beds is massiveand the lower faintly laminated. Bothbeds contain pteropods.

SITE 967 HOLE B CORE 2H CORED 5.3-14.8 mbsf

GRAPE(g/cm3)


Magneticsuscepti-

bility1

GraphicLith.

X J.•÷je >J X J

1 1.5 0 20 0 100 200

Structure

5Y5/1To

10YR6/2

Description


Major Lithology:The dominant sediment in this core isslightly to moderately bioturbatedNANNOFOSSIL OOZE andNANNOFOSSIL CLAY, color bandedthroughout (gray (5Y 5/1), light gray(5Y 6/1), and light brownish gray(10YR 6/2)) at decimeter to meterscale.

Minor Lithologies:Six dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. Most ofthese beds are finely laminated. Bedsare between 10 and 27 cm thick. Allbeds display intermittent lamination;most are bioturbated throughout.

GRAPE(g/cm3)


yft*̂

ß• >

i

11

Magneticsuscepti-

bility1

?Jj

j

1

)f/yp̂>ris

)cf

i

Ji

SITE 967

lete

r

2

1_

--:

2_:

--

3_-

—

4_

—

5_

a_

a_

GraphicLith.

^•Vül•'-'-' I

i••i^Ur"-"- 1

L•vif-"-"• ^^/ i1-V. •1-LJJ."1J."i(-"-"• *•

L J•J"J-J"•«•Λ"! J -

j.•V•jr"-"-' i.

L•V•it-"-" •1"

L

X Λ J -"-"‰

L••ji••j!1^1-"-"' •""

L • ^ J . • 1 " ^ - " - " '~

'•J.•••J.•JI•X-! i-

L J J. J J.•* -"-"• *"

uJj.aj.•*f-"-" ‰

E|::::::

||̂ ;

t• î"-"-"1-

HOLE

ot3CD

CO

i 1

'i 2

||

t" 3

ij

Jj 4

t• 5

^ 6

i 7

ice

(D

<

CDCCD

:oc

CO

CD

CLCD

T3

mid

B CORE

Structure

m

55

_

H

• B

55

3H

stur

b

b

mpl

e

CO

CO

SS

olor

O

10Y7/1To5Y6/1


Description


Major Lithology:The dominant sediment in this core isslightly to moderately bioturbatedNANNOFOSSIL OOZE andNANNOFOSSIL CLAY color bandedat decimeter to meter scale through arange of browns and grays (10YR7/1-5Y6/1).

Minor Lithologies:In this core, nine dark olive gray (5Y3/2) through very dark gray (5Y 3/1) toblack (5Y 2.5/1) SAPROPELS occur.Most of these beds are finelylaminated. Sapropel beds arebetween 3 cm and 20 cm thick andseveral of them are composite,containing one or two 0.2-cm to 5-cminterbeds or laminae of dark gray (N4)pyritic clay.

1 1.5 0 20 0 200 400

GRAPE(g/cm3)

1 1.b (


>

F< ^

*\•C_

j

JC?

f

j5

) 20 C

Magneticsuscepti-

bility1

>

s

ic

Q

*\Sf\

r

\

/

s

SITE 967

lete

r

1 _

—

2_

3 _

:

4_

-

6_

Z_

a_

) 200 400

GraphicLith.

i•V J•-"- J

j.Jα.•i!r•"-"- J

L^J.••J. -"-" I 1

'iV•α-"-'- j

" J " J U J L J ! • - " - ' •*

•J.J•J."1•J-"-j• J.

J. J J. J •J-"-"- j .

"jiijr•-"-• •••

'"J.•V•J-•-•- J.

L•VUJT•"-" !*•

t•^J•-•- i

j - x J -_-_- J-

p

HOLE

sctio

n

CΛ

^ 1

1 2

_,_

!L 3

• 1 " —

i 4

i 5

: _

1 7

ice

CD

en

CD

ΦO

2le

i;

Q_>,COCD

B CORE

Structure

X

8

X

•

• X

8

•

••

X

: 4H

stur

b

b

mpl

e

CΛ

S

s

olor

O

10YR2/1To5Y5/1


Description


Major Lithology:Sediment recovered in this core ismoderately bioturbatedNANNOFOSSIL OOZE andNANNOFOSSIL CLAY color banded atdecimeter to meter scale through arange of browns and grays (10YR2/1-5 Y 5/1).

Minor Lithologies:Seven SAPROPELS ranging in colorbetween dark olive gray (5Y 3/2)through very dark gray (5Y 3/1) toblack (5Y 2.5/1) occur in Sections 4, 5,6, and 7 of this core. Most of thesebeds are finely laminated. Thesapropels are between 3 cm and 10cm thick and several of them arecomposite, containing one or more0.2- to 5-cm interbeds or laminae ofdark gray (N4) pyritic clay.

General Description:Microfaulting is common throughout.

967B-4H 1

GRAPE(g/cm3)

Reflec-tance (%(550 nm

SITE 967 HOLE B CORE 5HMagnetisuscepti

bility1

T

GraphicLith.

1 1.5 0 20 0 100 200

Structure

X

X

5Y6/2To5Y6/1

CORED 33.8 - 43.3 mbsf 967B-5H

Description

NANNOFOSSIL OOZE

Major Lithology:The dominant sediment in this core isslightly bioturbated NANNOFOSSILOOZE that is color banded atdecimeter to meter scale through arange of light olive gray (5Y 6/1 and5Y 6/2).

Minor Lithologies:Ten SAPROPELS were recovered inthis core. Sapropel beds vary in colorfrom dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1). Most of these beds are finelylaminated and are between 3 cm and20 cm thick. Several of the sapropelsare composite, containing one ormore 0.2-cm to 5-cm-thick interbedsor laminae of dark gray (N4) pyriticclay.

• _


GRAPE(g/cm3)


Magneticsuscepti-

bility1

i I i

1 1.5 0 20 0 100 200


10YR6/1To

10YR7/2

Description

NANNOFOSSIL OOZE

Major Lithology:The dominant sediment in this core isslightly to moderately bioturbatedNANNOFOSSIL OOZE color bandedat decimeter to meter scale through arange of browns (10YR 6/1-10YR 7/2).

Minor Lithologies:Thirteen dark olive gray (5Y 3/2)through very dark gray (5Y 3/1) toblack (5Y 2.5/1) SAPROPELS occur inthis core. Some of the sapropel bedsare finely laminated, most arebioturbated, especially across uppercontacts. Beds are between 3 cm and18 cm thick; several are composite,containing one to three 0.2-cm to 5-cminterbeds or laminae of dark gray (N4)clay.

GRAPE(g/cm3)


~y

—̂̂

s

]

1J

1

Magneticsuscepti-

bility1

%

\

\'~>

j

V.

>

i11

i

SITE 967

eter

1 _

-

2 _

3 _

4 _

-

5 _

J

6 _

L-

a_

9 _

GraplLith

"Wu.

j . J. J.

'J.J.J.

HOLEc

IC .2o

CO

Λ : 1

-Vi 2

•S."1-. 3

•V: —

SJ: 5

•V1: 6

• •• 7

CO

CD

Φ

8n

B CORE

Structure

55

•

* \

•

55

55

7H

stur

b

Q

mpl

e

CO

olor

O

7.5YR7/2To5Y7/2


Description

CLAYEY NANNOFOSSIL OOZEWITH FORAMINIFERS

Major Lithology:The dominant sediment in this core ismoderately bioturbated CLAYEYNANNOFOSSIL OOZE withFORAMINIFERS color banded atdecimeter to meter scale through arange of browns and grays (7.5YR7/2-5Y 7/2).

Minor Lithologies:Three dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur in this core.The beds are between 5 cm and 10cm thick and are heavily bioturbated,especially across the upper contact. ADEBRIS FLOW deposit occurs in theinterval between Section 1,114 cm,and Section 5, 60 cm. The depositcontains isolated mud clasts (includingsapropel clasts) within a mud matrix.

1 1.5 0 20 0 50 100


CLAYEY NANNOFOSSIL OOZEWITH FORAMINIFERS

Major Lithology:The dominant sediment in this core ismoderately to heavily bioturbatedCLAYEY NANNOFOSSIL OOZE withFORAMINIFERS, color banded atdecimeter to meter scale through arange of browns and grays (7.5YR5/2-5Y6/1).

Minor Lithologies:Four dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur in this core.The beds vary in thickness between 5and 25 cm. Burrows are commonacross upper boundaries.


GRAPE(g/cm3)


Magneticsuscepti-

bility1

4_

6_

7_

9_.V


1 1.5 0 20 0 100 200

5Y6/1To5Y6/3

Description


Major Lithology:The dominant sediment in this core isslightly to heavily bioturbated light olivegray (5Y 6/1-5Y 6/3) CLAYEYNANNOFOSSIL OOZE.

Minor Lithologies:Fifteen SAPROPEL beds occur in thiscore. The beds range from dark olivegray (5Y 3/2) through very dark gray(5Y 3/1) to black (5Y 2.5/1) in color.Most of these beds are bioturbated,and are between 3 cm and 25 cmthick. Several of the beds arecomposite.

SITE 967 HOLE B CORE 10H CORED 81.3-90.8 mbsf 967B-10H 1 cc

GRAPE(g/cm3)

Reflec-tance (%)(550 πm

Magneticsuscepti-

bility1

1 _

a_


1 1.5 0 20 -100 0 100

5Y7/1To

7.5YR5/2

Description


Major Lithology:The dominant sediment in this core islight gray and brown (5Y 7/1-7.5YR5/2) moderately bioturbatedNANNOFOSSIL OOZE withFORAMINIFERS.

Minor Lithologies:One dark gray (5Y 3/1) SAPROPELoccurs in Section 1 of this core. Theupper contact is heavily burrowed.

SITE 967 HOLE B CORE 11H CORED 90.8- 100.3 mbsf 967B-11H 1

GRAPE(g/crr>3)


Magneticsuscepti-

bility1

j


P

7.5YR5/4To5Y7/1

Description


Major Lithology:The dominant lithology in this core ismoderately bioturbated brown (7.5YR5/4) and gray (5Y 7/1)NANNOFOSSIL OOZE withFORAMINIFERS.

1 1.5 0 25 -100 0 100


CLAYEY NANNOFOSSIL OOZEAND NANNOFOSSIL CLAY

Major Lithology:The sediment in this core is reddishbrown (7.5YR 6/4) CLAYEYNANNOFOSSIL OOZE andNANNOFOSSIL CLAY.

General Description:Core Catcher has collapsed liner.

SITE 967 HOLE B CORE 13H CORED 109.8-119.3 mbsf 967B-13H 1

GRAPE(g/cm3)


Magneticsuscepti-

bility1

z_

9_

GraphicLith.

CC

Structure

7.5YR6/6

Description


Major Lithology:The sediment in this core isNANNOFOSSIL OOZE withFORAMINIFERS. The proportion offoraminifers in the core increasestoward the base of the core. The coloris reddish yellow (7.5YR 6/5).

1 2 0 50 -200 0 200

7 ... o&•i


GRAPE(g/cm3)

i


IMagneticsuscepti-

bility1

iM

eter

2_

GraphicLith.

ID

DD

DD

DD

DD

DD

DI

Sec

tion

1

2

Age

Plio

cene

Structure

Dis

turb

Sam

ple

Col

or

5Y7/1

Description

CALCAREOUS OOZE

Major Lithology:The sediment in this core isCALCAREOUS OOZE with occasionalconcentrations of foraminifers. Thecolor is greenish gray (5Y 7/1).

1.5 2 20 40 -20 0 20

967B-14H 1

40-

-

GRAPE(g/cm3)


c

_ 3"^

\

/

\

\

X

f

f

<

i

Magneticsuscepti-

bility1

1>—_

>};

/s

1>>\<i

>

\

SITE

ΦΦ

—

2 _

—:

3 _

4—

-

5 _

-

:

Z-

-

8 _

9 _

967 HOLE

GraphicLith

Λ •

»

y

.V.'

Λ

~•\L"-"-"-"-'•

Vt/Xv:>• Λ".V-•.V

5̂"-"-"-"-"-"-"""J1L2J•.v.v.•'-j.-M'-"-"-"-"-1

'• -̂'•'•.v.v.•

>"^-"-"-"-"-

v-•-•-•-•-•

Vf-j-'-"-"-'

ΛI-.-.-.-.-.

^ ^Vf-V-V-•

^ : : : : : : : ;

IP

actio

n

CΛ

1

—

2

3

—

4

5

—

6

7

CT

Φσ>

—

ΦC

GO

ffl

e-l

cΦO

oCO' Φ

CL

(UIPP!

E

C CORE

Structure

m

~A

-A

•

. X

Δ

5 Δ

ü ΔΔ

Δ

1H

stur

b

bo

i

II

mpl

e

TO

SITE 967 HOLE C CORE 2H

GRAPE(g/cm3)

Reflec-tance (°/c(550 nm)

Z_

δ _

a_

1 1.5 0 25 0 100 200

Magneticsuscepti-

bility1Graphic

Lith.

ijx-x-^>ixx•

;•VfX-X•

• ĵ•-v.-.

;•vtX-X•

;•v*X-X-J

^•fXvX

Vu.T-.v:

jv•i•x•x•:

CORED 9.5-19.0 mbsf 967C-2H 1

Structure

10YR5/3To5Y5/2

Description


Major Lithologies:The dominant lithologies in this coreare brown (10YR 5/3) and olive gray(5Y 5/2) NANNOFOSSIL OOZE andCLAY.

Minor Lithologies:Four dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. Thesebeds are lighty to moderatelybioturbated and range in thicknessfrom 3 to 30 cm.

General Description:Much of the core consists ofdecimeter-thick that which displaycolor-grading from dark to pale hues.

GRAPE(g/cm3)

1 1 . E

Reflec-tance (%(550 nm

SITE 967 HOLE C CORE 3HMagnetsuscept

bility1

20 0

3_

GraphiLith.

"-"-"•"-j.-1

-"-Tu.•V•

••L•VJ:

• l •

•T•Λ

•ii••i•

200 400

Structur

5Y6/1To5Y7/1

CORED 19.0-28.5 mbsf 967C-3H 1

Description


Major Lithologies:The dominant lithologies in this coreare light gray (5Y 7/1) to gray (5Y 6/1)NANNOFOSSIL OOZE andNANNOFOSSIL CLAY.

Minor Lithologies:Five dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. Most ofthese beds are finely laminated. Theyare between 1 and 17 cm thick andseveral of them are composite.

General Description:Decimeter beds of color-gradednannofossil clay are presentthroughout the core.


GRAPE(g/cm3)


Magneticsuscepti-

bility1

1 —

2_

1.5 0 20 0 200 400

GraphicLith.

:3K?

:::t:lIJL JL .

• • • I V X

Structure


5Y6/1To

2.5Y5/4

Description


Major Lithologies:The dominant lithologies in this coreare moderately burrowed gray (2.5Y5/4 and 5Y 6/1) NANNOFOSSILOOZE and NANNOFOSSIL CLAY.

Minor Lithologies:Eleven dark olive gray (5Y 3/2)through very dark gray (5Y 3/1) toblack (5Y 2.5/1) SAPROPELS occurin this core. Beds are between 5 and25 cm thick, most are finely laminated.

SITE 967 HOLE C CORE 5H CORED 38.0-47.5 mbsf

GRAPE(g/cm3)


Magneticsuscepti-

bility1

>

2_

3_

a_

1 1.5 0 20 0 100 200


p»>

X>»

P

8 P

5Y7/1To5Y6/2

Description

NANNOFOSSIL OOZE

Major Lithology:The dominant lithology in this core isgray (5Y 7/1 and 5Y 6/2) moderately towell bioturbated NANNOFOSSILOOZE.

Minor Lithologies:Thirteen dark olive gray (5Y 3/2)through very dark gray (5Y 3/1) toblack (5Y 2.5/1) SAPROPELS occur inthis core. Most of these beds are finelylaminated, some are moderatelybioturbated. Sapropel beds arebetween 3 cm and 20 cm thick andseveral are composite, containing oneor two 0.2- to 5-cm interbeds orlaminae of dark gray (N4) pyritic clay.


GRAPE(g/cm3)

CORED 47.5-57.0 mbsfReflec-

tance (%)(550 nm)

a_

9_

ML1 1.5 0 20 0 100 200

Magneticsuscepti-

bility1

2_ -


5Y6/1To5Y7/1

Description

NANNOFOSSIL OOZE

Major Lithology:The dominant lithology in this core isslightly bioturbated gray (5Y 6/1 and5Y7/1) NANNOFOSSIL OOZE.

Minor Lithologies:Eleven dark olive gray (5Y 3/2)through very dark gray (5Y 3/1) toblack (5Y 2.5/1) SAPROPELSoccur. Most of these beds arelaminated, and several of them arecomposite. Mud clasts occur inSections 4, 49-150 cm, and Section5, 0-43 cm.



Major Lithologies:The dominant lithology in this core ismoderately to heavily bioturbated gray(5Y 6/1) and reddish-yellow (10YR 6/4)NANNOFOSSIL OOZE andNANNOFOSSIL CLAY.

Minor Lithologies:Six dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur in this core.All beds are burrowed.


GRAPE(g/cm3)


Magneticsuscepti-

bility1

&-

a_:

1 1.5 0 20 -200 0 200


5Y7/1To

5GY6/1

Description

CLAYEY FORAMINIFERNANNOFOSSIL OOZE

Major Lithology:This core consists of light gray (5GY6/1) and greenish gray (5Y 7/1)CLAYEY FORAMINIFERNANNOFOSSIL OOZE.

Minor Lithologies:Fifteen dark olive gray (5Y 3/2)through very dark gray (5Y 3/1) toblack (5Y 2.5/1) SAPROPELS occur.Most of these horizons are slightly tomoderately bioturbated although someare well laminated. They are between6 and 15 cm thick and some of themare composite, containing interbeds orlaminae of dark gray (N4) pyritic clay.

Two highly bioturbated horizons ofFORAMINIFER SAND occur inSection 2. These are tinged with red.

SITE 967 HOLE C CORE 9H CORED 76.0-85.5 mbsf 967C-9H 1

GRAPE(g/cm3)


Magneticsuscepti-

bility1

I I

1 _

GraphicLith.

1 1.5 0 20 0 50 100

Structure

5Y6/1To5Y7/1

Description

NANNOFOSSIL CLAY

Major Lithology:The sediment in this core is brown(5YR 6/4) and gray (5Y 6/1-5Y 07/1)NANNOFOSSIL CLAY color banded atdecimeter to meter scale.



Major Lithologies:The dominant lithology in this core isslightly bioturbated NANNOFOSSILOOZE and NANNOFOSSIL CLAYcolor banded at decimeter to meterscale through brown (7.5YR 6/2) andgray (5Y 6/2).

SITE 967 HOLE C CORE 11H CORED 95.0-104.5 mbsf 967C-11H 1 7 CC

GRAPE(g/cm3)


Magneticsuscepti-

bility1

2_

7_

a_

-irr

GraphicLith.

5_ -TK^• J- aT

CC

Structure

7.5YR6/4To

2.5Y7/2

Description


Major Lithology:The dominant lithology in this coreis slightly to moderately bioturbatedNANNOFOSSIL OOZE WITHFORAMINIFERS color banded atdecimeter to meter scale through arange of brown (7.5YR 6/4) andpale green (2.5Y 7/2).

1.4 1.6 0 20 0 50 100

GRAPE(g/cm3

i >

^ >

s\4

v)

j!

ji


S

c/\7J

/

1

Magneticsuscepti-

bility1

yΛ

)\

j

{i

1

Sllb

eter

-

1_

2_

3_

(

L J

L J

L J

L -1

L J

a cD

a ca

a c

967 HOLE

3raphicLith

. J. J. J. J

. J. α. J. J.• X l i . J

. j . j . j. j.

ctio

n

1

2

3

4

X

σ>

CD

CD

oou.

early

C CORE

Structure

12H

stur

b

Q

IIII

mpl

e

σsw

M

olor

O

cvc>

6/4To5Y4/1


Description

NANNOFOSSIL OOZE

Major Lithology:The dominant lithology in this core isNANNOFOSSIL OOZE color bandedat decimeter to meter scale through arange of brown (5YR 6/4) and gray (5Y4/1).

Minor Lithologies:Foraminifer sand is concentrated in~10-cm-thick, indistinct, slightly lightercolored bands. Olive (5Y 5/3) and darkgray (5Y 4/1) calcareous silty clayoccurs in the lower part of the core.

1 1.5 0 25 0 50 100


GRAPE(g/cm3)

Magneticsuscepti-

bility1

2 - 5 0

GraphicLith.


Structure

10YR7/1

Description

CALCAREOUS CONGLOMERATE

Major Lithology:The sediment in this core is a lightgray (10 YR 7/1) matrix supportedCALCAREOUS CONGLOMERATE.

General Description:The entire core has been severelydisturbed by drilling.

GRAPE(g/cm3)

JJ?

jfSj

|

S

V)

f\

1


i

i

Magneticsuscepti-

bility 1

<

{

7

?)J

\

i

SITE 967 HOLE,_Φ

-

Z-

—:

3_::

-:

--

6_

Lith.

i. X X

L X XI

_,_ _,_ j_1

1•J"J-J"•i•'V.".V.jiiiJi•J".".v.".'L

J.J•JL•

1-Jv.v.".

î x̂ xi-"-"-"-"JVX-'-'-"-'-"

•^•^•H•.V.V.

-̂"il-"-'-'-"-"j.JxJx"r-"-"-"-"-"

•^•V-JΛVΛ

L^X^XJ-"-"-"-"-"

• ii j ii j L>"-"-"-••"-^x^x"""/-"-"-"-"-

^ ^‰ x xJ-_-_-_-_-j

x x x!•-_v.V.

¥x4^•

cot3Φ

CO

1

2

3

4

5

3c

Φ

<

Φ

Φ

o

GRAPE(g/cm3)

1.5 o

Magnetisuscept

bility1

(1 '

V

I

IΛ3>

»

>

>

/

ç

i

SITE 967 \

I M

eter

1_

2_

3_

:

-

_

i i

11

; i

i i

-

-

|

100 200

GraphicLith.

J. j . J_\\\-

•JΛJV-'-"-".

l",•l'1•i•iV_V_"

- - - - -

^•Λ-•V-J•J•J•^

i."lj.JLjir~-~-~--

j.j. —i. ^ jT^• - - - -

JHΛVVΛVΛΛ.J-•VX•"

L̂ J.,-'-"-"-"-'

viv-"-"-'-"-J. J "J.•S_-"-*-"•

α.J"j.J•i"-"-'-'-'-

IB-•jè-t-I-Mv;*>}-:-:-:-:-:t•V-J•.v.v.

J-•^J"-"-'-"-"-

HOLE

1 S

ectio

n

1

2

3

4

5

5

_

~C

I A

ge |

Φ

SOΛ

lei

0-

5

D CORE 2H

Structure

-A

J

> Δ

ΔΛΔΛZΛ

ΔΔΔΔΔΔ

, Δ* Δ5 Δ

ΔΔ

Δ

i ΔΔ

j ΔΔΔΔ

Dis

turb

I

u

Sam

ple

M

Col

or

5Y5/1To

10YR6/2

CORED 6.7-16.2 mbsf

Description


Major Lithologies:The dominant lithologies in this coreare gray (5Y 5/1) to light gray (5Y 6/1)light brownish gray (10YR 6/2)NANNOFOSSIL OOZE and CLAY.

Minor Lithologies:Five dark olive gray (5Y 3/2) throughvery dark gray (5Y 3/1) to black (5Y2.5/1) SAPROPELS occur. The thickerof these beds are finely laminated.They are between 6 and 50 cm thickand several of them are composite,containing one or two 0.2- to 5-cminterbeds or laminae of dark gray (N4)clay.

3eneral Description:Much of the core comprises color-jraded units from gray or brown clay toight gray or light yellowish brown

nannofossil ooze.

SITE 967 HOLE

Met

er

1_

2_

GraphicLith.

J. J. X ± X J

J. J. J. J. _i. J.

Sec

tion

1

2

DC

Age

early

Plio

cene

E CORE

Structure

I

1R

Dis

turb

Sam

ple

M

Col

or

5Y7/1To

7.5YR6/4


Description

NANNOFOSSIL OOZE

Major Lithology:The dominant lithology in this core islight brown (7.5YR 6/4) and light gray(5Y 7/1) NANNOFOSSIL OOZE.

SITE 967 HOLE

Met

er GraphicLith.

Sec

tion

1

Age

y P

lio.

E CORE

Structure

I

2R

Dis

turb

I

Sam

ple

Col

or

5Y2.5/2

ear

CORED 119.1 - 128.7 mbsf

Description

NANNOFOSSIL OOZE

Major LithologyThe dominant lithology in this core isbioturbated and brown (7.5YR 5/4) andgray (5Y 7/1) NANNOFOSSIL OOZE.

SITE 967 HOLE E CORE 3R CORED 128.7-138.3 mbsf

Structure Description

10Y7/2To10Y7/1

FORAMINIFER NANNOFOSSILCHALK

Major Lithology:This core contains burrow-mottled,greenish (10Y 7/1) FORAMINIFERNANNOFOSSIL CHALK with abundantplanktonic foraminfers.

Minor Lithologies:SILTY CARBONATE OOZE

General Description:Bioturbation increases down the core.Occasional grains of glauconite andapatite(?) occur in some places.

SITE 967 HOLE E CORE 4R

Structure

10YR7/2


Description


Major Lithology:The sediment in this core is light gray(10YR 7/2) FORAMINIFERNANNOFOSSIL CHALK.

General Description:The core is bioturbated and there areconcentrations of foraminifers inplaces.




10YR8/1To

10YR7/1

Description


Major Lithology:This core consists of white (10YR 8/1)to very light gray (10YR 7/1)FORAMINIFER NANNOFOSSILCHALK.

General Description:The core is moderately to heavilyburrowed.



10Y7/1


Major Lithology:This core contains uniform, palegreen (10Y 7/1) FORAMINIFERNANNOFOSSIL CHALK.



2.5Y7/2


Major Lithology:This core consists of light gray (2.5Y7/2) FORAMINIFER NANNOFOSSILCHALK. Chondrites burrows and faintlamination are present throughout.



5Y8/1


Major Lithology:This core consists of burrowed lightgray (5Y 8/1) FORAMINIFERNANNOFOSSIL CHALK. There isabundant disseminated pyrite. Smallfissures are infilled with carbonate silt.Minor syn-sedimentary faults arepresent.

967E-6R 1 967E-7R 1 967E-8R 1



5Y8/1


Major Lithology:This core contains white (5Y 8/1)FORAMINIFER NANNOFOSSILCHALK rich in Chondrites andPlanolitθs. High- to low-angle faultscut burrows cleanly. Three smallpieces of replacement chert occur at2, 30, and 92 cm.


GraphicLith. Structure Description

5Y8/1


Major Lithology:This core is a uniform white (5Y 8/1)FORAMINIFER NANNOFOSSILCHALK, with abundant Chondritesand Planolites together with a vaguediagenetic green-color banding; minorfaults are present.

967E-9R

SITE 967 HOLE E CORE 11R CORED 205.8-215.4 mbsf 967E-11R 1 CC

Structure

5Y8/1

Description


Major Lithology:This core contains white (5Y 8/1)bioturbated FORAMINIFERNANNOFOSSIL CHALK, exhibitingalternating finely burrowed and finelylaminated layers. Several fragments ofreplacement chert occur in the core.


Structure

5Y8/1

Description


Major Lithology:This core consists of burrowed, white(5Y 8/1) FORAMINIFERNANNOFOSSIL CHALK that is well-lithified. Rare sulfide mottling anddark particles (apatite ?) occur insome places.

SITE 967 HOLE E CORE 13R CORED 225.1 -234.7 mbsf


5Y8/1To5Y7/1


Major Lithology:This core consists of white (5Y 8/1) tolight gray (5Y 7/1) FORAMINIFERNANNOFOSSIL CHALK.

Minor Lithologies:Two horizons of gray (N6) CHERToccur.

General Description:Millimeter-thick, bed-parallel greenishcolor laminae and purplish ringsaround burrows occur throughout.Pervasive burrows include Planolites,Chondrites, Zoophycos, rind burrows,and rare Teichichnus.


Description



Minor Lithologies:A small (2 cm) round nodule of gray(N6) CHERT (?) occurs in Section 2,77 cm.

General Description:Millimeter-thick, bed-parallel greenishcolor laminae and purplish ringsaround burrows occur throughout.Pervasive burrows include Planolites,Chondrites, and rind burrows. Two4-6-cm-thick horizons of contortedbedding occur in Section 1,113-120cm and Section 2, 82-87 cm.

967E-13R 1

' i

i



5Y8/1To5Y7/1



Minor Lithologies:Two horizons/ nodules of gray (N6) todark gray (N4) CHERT occur. Thesepreserve similar burrows as thoseobserved within the chalks.

General Description:Millimeter-thick, bed-parallel greenishand purplish color laminae and ringsaround burrows occur throughout.Pervasive burrows includingPlanolitθs, Chondrites, Zoophycos,and rind burrows occur throughout.Some foraminifer-rich patches occur.



55? © i

555

5855?

5Y7/1


Major Lithology:This core consists of light gray (5Y 7/1)FORAMINIFER NANNOFOSSILCHALK.

Minor Lithologies:Nodules of chert occur in Sections 1and 3.

General Description:The core is intensely bioturbated.Millimeter-thick, purplish rings aroundburrows occur throughout. Pervasiveburrows include Planolites, Chondrites,Zoophycos, rind burrows. Someburrows and patches are slightlydarker gray (5Y 6/1). Concentrations oflarge (up to 3.5 mm) benthicforaminifers are present in Section 2,60-65 cm, and Section 3, 35-65 cm.

967E-15R 1

SITE 967 HOLE E CORE 17R CORED 263.5-273.1 mbsf 967E-17R 1

Structure

>»

5Y7/1To5Y6/1

Description


Major Lithology:This core consists of gray (5Y 6/1) tolight gray (5Y 7/1) FORAMINIFERNANNOFOSSIL CHALK.

Minor Lithologies:Three nodules of gray (N6) to dark gray(N4) CHERT occur. Black chertmicronodules with pyrite occur inSection 2, 8 and 58 cm.

General Description:Pervasive burrows include Planolites,Chondrites and rind burrows.Zoophycos is locally abundant.Occasional bluish color halos arepresent around burrows. A glauconite-rich interval occurs in Section 2, 48-78cm.

SITE 967 HOLE E CORE 18R CORED 273.1 - 282.7 mbsf

Structure

5Y7/1To5Y6/1

Description


Major Lithology:This core consists of light gray (5Y7/1) and gray (5Y 6/1)FORAMINIFER NANNOFOSSILCHALK.

Minor Lithologies:One horizon of gray (N6) CHERToccurs at the base of Section 2.

General Description:Millimeter-thick, bed-parallel greenishcolor laminae and purplish ringsaround burrows occur throughout.Burrows include Planolites,Chondritθs, Zoophycos, rind burrows,and some Teichichnus.



5Y7/1To5Y6/1

FOAMINIFER NANNOFOSSIL CHALK




5Y7/1To5Y6/1





5Y6/1To5Y7/1


Major Lithology:Moderately to well bioturbated gray (5Y6/1) to light gray (5Y 7/1)FORAMINIFER NANNOFOSSILCHALK is the dominant lithology in this



5Y6/1To5Y7/1





5Y6/1

CORED 321.2-330.8 mbsf 967E-23R 1 967E-24R 1

Description


Major Lithology:This core consists of moderatelybioturbated, gray (5Y 6/1) to light gray(5Y 7/1) FORAMINIFERNANNOFOSSIL CHALK.


Structure

8 ©88

5Y6/1To5Y7/1


Description


Major Lithology:This core consists of moderatelybioturbated, gray (5Y 6/1) to light gray(5Y 7/1) FORAMINIFERNANNOFOSSIL CHALK.


Structure

5Y7/1To5Y7/2


Description


Major Lithology:This core consists of moderatelybioturbated, faintly color banded, lightgray (5Y 7/1 and 5Y 7/2)FORAMINIFER NANNOFOSSILCHALK.

General Description:Glauconite grains are disseminatedthroughout.

SITE 967 HOLE E CORE 26R CORED 350.1 -359.7 mbsf 967E-26R 1 967E-27R 1 967E-28R 1

Structure

5Y8/1

Description


Major Lithology:Sediment in this core consists ofmoderately bioturbated, white (5Y 8/1)FORAMINIFER NANNOFOSSILCHALK.

General Description:Fragments of crinoids(?) aredisseminated throughout.


Structure

5Y8/1

Description


Major Lithology:This core consists of moderatelybioturbated, white (5Y 8/1)FORAMINIFER NANNOFOSSILCHALK.


Structure

©i5Y8/1

Description


Major Lithology:This core consists of moderatelybioturbated, white (5Y 8/1)FORAMINIFER NANNOFOSSILCHALK.

Minor Lithologies:Two intervals of finely laminated blackbituminous LIMESTONE are presentin this core, together with two piecesof "replacement" CHERT.

SITE 967 HOLE E CORE 29R CORED 378.8-388.4 mbsf 967E:29R 967E-30R 1

Structure

5Y8/1

Description


Major Lithology:This core consists of moderatelybioturbated, white to gray (5Y 8/1)FORAMINIFER NANNOFOSSILCHALK.


Structure

5Y7/1

Description


Major Lithology:This core consists of eleven pieces ofgray (5Y 6/1) FORAMINIFERNANNOFOSSIL CHALK.

General Description:The core is intensely burrowed, andthe color varies from light gray (5Y 7/1)to darker gray (5Y 5/1). The mostcommon burrows observed arePlanolites and rind burrows. Somedark gray (5Y 4/1) zones of burrowfill(?) are present. Occasional, small(1-2-mm) pyrite nodules are present.

SITE 967 HOLE

Met

er

-

GraphicLith.

i ' •' i ' i ' • *~i"

Sec

tion

1

Age

E CORE

Structure

31R

Dis

turb

Sam

ple

Col

or


Description


Major Lithology:The rock in this core is a structurelessFORAMINIFER NANNOFOSSILCHALK that has a moldic porosity aftersmall molluscs. There are occasionalpyrite flecks, and the rock is cut by thinannealed fractures up to 1 mm wide.The color is white (1OYR 8/1).

General Description:Core recovery 1 %.

- J


Structure

ò10YR8/1

Description


Major Lithology:The rock in this core is FORAMINIFERNANNOFOSSIL CHALK that is highlyburrowed with occasional moldicporosity after small molluscs. Thereare crinoid ossicles in some placesand thin fractures, some open andsome annealed, cut the rock. The coloris white (10YR 8/1).

General Description:Core recovery 5%.


GraphicLith.

• • • ' • • • * • * •



Major Lithology:The rock in this core isFORAMINIFER NANNOFOSSILCHALK that has been intenselyburrowed. Mollusc fossils arescattered throughout the rock, whichalso has occasional pyrite flecks andrare moldic porosity. The color is white(10YR8/1).


967E-32R

s—1

I0—I

15—I

20—1

E5—j

30—1

3 5 —

40—

4 5 —

SO—

5 5 —

80—

85—

70—

7 5 —

BO—

85—•

90—

no—

1 0 5 -

110—

ISO —

B5—-

130—

1 3 5 ^

140—

ISO—

1

• •1HHHIH•

Vj)

.,

! l

;

i1i

9β7E-33R___1_

— s—BM

— I0—1,1

— is—lEr

— 25—•H—HU

— so—••_•i•i— 35—••

— 40—WKΛ

— 45—pH

—, 50—

_ 5 5 -

— — ,

_ ss£- 7 0 - :

_ 7 5 -

— 80—

— 30—

— 100—

— 105—

— 1)0—

l | g _

— 120—

_ . i —

- « -

- 135—

... M O —

- 145—

- , 150—•

i

é :


GraphicLith. Structure Description

OALUAHLINII b, hUHAMIINII-bHNANNOFOSSIL CHALK and CHERT

Major Lithologies:The three pieces of rock recovered inthis core are CALCARENITE withconsiderable moldic porosity aftermolluscs. It is well cemented by calcite(?) spar, which also fills some of theporosity. FORAMINIFERNANNOFOSSIL CHALK is presentand shows some evidence of beddingwith coarser foraminifer-rich horizonsshowing as discete layers. There hasbeen slight bioturbation and there aresome thin annealed fractures. Astructureless CHERT nodule is alsopresent.

General Description:Core recovery < 1%.

SITE 967 HOLE E CORE 35R CORED 436.6 - 446.2 mbsf

Met

er GraphicLith.

Sec

tion

i

Age Structure

Dis

turb

Sam

ple

Col

or Description

FORAMINIFFR NANNOFOSSIICHALK

Major Lithology:The rocks recovered in this core areFORAMINIFER NANNOFOSSILCHALK, some of which is wellcemented and structureless. Otherpieces are finely laminated (0.5 mm)with some laminae apparentlybituminous. Other parts of the rocksshow small scale (1-2 mm) ripples.


967E-34R 1

HIs—BBito—119

-JH•His—•H

2 5 ^ f ' l tao• U

85- I I4 0 HteH45—"SH

-HB50—•B

60— .

es—

, 7 0 -

-8 5 —

3 0 —

8 5 - ^

BO—

no—

ISO—

125—

130—

140—

145—

ISO—

967E-35R _ J _

I i ~-B- 5 j |i l0—•H

u " s o — ^ 1,— εs—^P

I ~L 35.

— 40—

r 45z

>,*•' ^

H so—

µ -z— 80—

— 65—

~™ 7 0 —

—• BO—

— 8 5 —

— 3 5 —

— 100—

— no—

- , 1 5 -

— 120—

— 125—

— 130—

— 140—

- 1 4 5 -

- •• ISO—

SITE 967 HOLE

| M

eter Graphic

Lith.

I1 Se

ctio

n|

Age

E CORE

Structure

36 R

| D

istu

rb

Sam

ple

Col

or

CORED 446.2 - 455.9 mbsf

Description

—• ' ' CALCARENITE, CALCILUTITE andFORAMINIFER NANNOFOSSILCHALK

Major Lithologies:The four pieces of rock recovered inthis core represent two lithologies: 1)Recrystallized CALCARENITE orCALCILUTITE(?) that has minorannealed fracturing and some algalencrustation. There is minor moldicporosity that is partially filled withsecondary calcite. 2) LaminatedFORAMINIFER NANNOFOSSILCHALK that is intercalated with thinhorizons of coarser carbonate. Thelatter are in stringers and blebs.


SITE 967 HOLE

| M

eter Graphic

Lith.

\ Se

ctio

n

Φ

<

E CORE

Structure

37 R

| D

istu

rb

Sam

ple

Col

or


Description

CORALGAL CALCARENITE

Major Lithology:The rock recovered in this core isCORALGAL CALCARENITE that hasconsiderable vuggy porosity and iswell cemented by sparry calcite.Dominant bioclasts are coral andalgae.


967E 38R NO RECOVERY

SITE 967 HOLE

Met

er GraphicLith.

Sect

ion

1

Age

E CORE

Structure

39R

Dis

turb

Sam

ple

Col

or

CORED 475.1 -484.8 mbsf

Description

n&\ OΔDPMITP

Major Lithology:The rock in this core is algal-dominated CALCARENITE. There issome evidence of microstylolites at theboundaries of some of the largergrains.


-

967E-37R 1

I15—•fB

HiSS™ " ""

4 0 —

4S-_.

50Z5 5 —

60— .

β s —

7 0 —

967E-39R J

L "ML l=.

- 4 0 -

_ 4 5 -

~ m—

~ SS—

— BO—;;

_ 6 5 -

_ 7 0 —

8 0 —

ao—

9 5 —

100—

IDS—

H O -

U S -

ED—

135—

145—

ISO—.

8 0 — ,

OS*™™"

90—j

100—

105—'

110—

IIS—

!SS—

130—

135—

140—

145—

i s o -L -j.

967E-41R 1 967E-42R 1 967E-44R 1


SITE 967 HOLEM

eter Graphic

Lith.

I l lT 1 1 1

i i i 1 1 f

I I I [ Ii i 1 1 1

1 1 1 1 IS

ectio

n

1

Age

San

t.

E CORE

Structure

41 R

Dis

turb

_L.1±±

Sam

ple

Col

or

10YR7/3


Description

CALCARENITE

Major Lithology:

core are very pale brown (10YR 7/3)CALCARENITE composed of mediumto coarse sand-sized clasts amongwhich algae is predominant. The algaeoccurs as discrete stromatolitic layersas well as in micritic coatings aroundclasts and aggregates. There aresome microstylolites along major grainboundaries and veins are present insome clasts.


SITE 967 HOLE

| M

eter Graphic

Lith.

•\ S

ectio

n

Φ

E CORE

Structure

42R

| D

istu

rb

Sam

ple

Col

or


Description

CALCARENITE

Major Lithology:The rock in this core comprises sixpieces of CALCARENITE composed ofbioclasts and inorganic carbonategrains cemented by calcite(?) spar.Encrusting algae dominates thebioclast population and encrusts othergrains. Crinoid(?) ossicles are presentin one piece. The color is white to lightgray (10 YR 8/1-1OYR 7/2).


SITE 967 HOLE

| M

eter Graphic

Lith.

['•Se

ctio

n|

Ag

e

E CORE

Structure

44R

Dis

turb

Sam

ple

Col

or


Description

CHERT

Major Lithology:This core consists of one 6-cm pieceof light gray (5Y 7/2) to gray (5Y 5/1)CHERT.

SITE 967 HOLE

Met

er

-

GraphicLith.

Sect

ion

1

Age

E CORE

Structure

45R

Dis

turb

Sam

ple

Col

or


Description

CHERT and CALCARENITE

Major Lithologies:This core comprises seven pieces ofwhich four are gray to light gray (10YR7/2) CHERT and three are very palebrown (10 YR 7/4) CALCARENITE.


Met

er

-

GraphicLith.

Sec

tion

1

CDCS)

<Structure

Dis

turb

Sam

ple

Col

or Description

BRECCIATED LIMESTONE

Major Lithology:This core includes several pieces ofBRECCIATED LIMESTONE composedof angular light gray clasts (10YR 7/2)less than 3 cm in size, within a dark,fine-grained matrix (10YR 3/1).Slickensided shear planes occur insome pieces.




Met

er GraphicLith.

Sec

tion

1

Age

Structure

Dis

turb

Sam

ple

Col

or Description

BRECCIATED LIMESTONE andCALCARENITE

Major Lithologies:The material recovered in this corecomprises four pieces of which threeare a light gray (10YR 7/2)BRECCIATED LIMESTONE with avery dark gray (10YR 3/1) matrix.Fragments are broken bioclasticmicritic limestone. Some slickensidedsurfaces are present. The fourth pieceis a light gray (10YR 7/2)CALCARENITE.

7E-45R

5—E^B

iα—Hjmis—|H|20—-SH

30-j3 5 —

40—

45__

Y;

SO—

5 5 —

8 0 —

β s —

7 0 —

7SZ8 0 —

8 5 —

SO—

35"™"™*

100—

105—

n o -

us—

iεo—

125—

130—

35™™™"

140—

145—

ISO—

967E-46R 1

I •ü— s—IH

\— is—mm

L ,;J--B

mmmm S D " 0 ™ ™ " !

— 3 5 _ |

— 45—

- 55-^

_ B 0 -

_ 8 5 -

-_ 7 0 -

—

—

—

75"™~~

ao—

85*""™™•

_ ao—

— 35—

— 100—

__ 105—

_ no—

_ us—

— 120—

_ .εs~

~ . 3 0 -

_ 135-

— 140—

— ISO—

967E-49R 1

M J •1 — s — B•—• g o — B

• " I S — 11— 20—H1 _ e s Z \

| - 3 0 -

_ 35-J

ASS

— 5 0 —

—> 55——

™~~ ou

_ „ , , BB-™

— 7 0 —

—

—

7 5 -

8 0 —

__ 8 5 -

_ ao—

— SS—

— 100—

— 105—

__ HO—

— U S -

— 120—

— ies—

—. 130—

- I 3 S -

— 140—

— ISO—


Met

er GraphicLith.

Sec

tion

Age Structure

Dis

turb

Sam

ple

Col

or Description

R R F P P I A T F Π MIPRITIOLIMESTONE and CALCARENITE

Major Lithology:The material recovered in this corecomprises four pieces, three of whichare white (10YR 8/1) to light gray(10YR 7/2) BRECCIATED MICRITICLIMESTONE. The fabric consists ofinternally fragmented clasts with someinternal porosity. The fourth piece is afine-grained light brownish-gray(10YR 6/2) CALCARENITE.

SITE 967 HOLE

| M

eter Graphic

Lith.

f S

ectio

n

E CORE

Structure

51R|

Dis

turb

Sam

ple

Col

or


Description

GALGARLNITE

Major Lithology:The material recovered in this coreconsists of two pieces of light gray,(10YR 7/2) fine-grained, fracturedCALCARENITE.

967E-5QR 1

5 - | | |

10—mB

3 0 —

SS-""™

jj

4 0 —

4 5 —

5 0 —

6 0 —

SS—

7 0 —

! 7 5 -

8 0 —

8 5 —

so-

β s —

100—

105—

no—

us—

lεo—

1 2 5 -

)30—

135—

140—

145—

ISO—

967E-51R1 1

1••

— io—ijj•

—

i

I- 3 5 - 1

„ 40-

— 4 5 —

— SO—

- βo•I

— SS—

— 7 0 —

_ •yes

8 0 —

— B5—

— 9 0 —

— 3 5 —

_ 100—

— IDS—

_ no—

— IIS—

— EO—

— 125—

— |30—

- 1 3 5 -

— 140—

— 145—

150—

1

SITE 967 HOLE F CORE 1H CORED 0.0-9.5 mbsf

Met

er

-

2_

:_-

:

_

ii

i

-

-

fi "

--

a_

:

-

GraphicLith.

••>J.VΛ.•1

:- JµJJLJJΛΛ:

- ' - ' I J . • 1 J . • 1 • j . • 1 J L 1

J••ΛΛΛÜ^J.

- " - ' • J . • V • J . • V

"-iKJLjil•j!1!i

- ' - f i . ^ • j . •V • j . • 1

- – J . J JT 1 J. • 1 J. • 1

' -"L J LJ. J LJ. J LJ. J LJ.

" 11. X X J. A

v!ij ij.• ij. jj.• ij

^ ^

Sec

tion

1

0

3

4

5

6

7

Age

cene

Φ

Q.

Φ

Structure

-A

ΔΔ

Δ

ΔΔ

••Δ

Δ

Δ

Δ

•

-A

Dis

turb

o

Sam

ple

Col

or

5Y4/1To

7.5YR6/4

Description


Major Lithologies:The sediment in this core consists ofdark gray (5Y 4/1) through light brown(7.5YR 6/4) NANNOFOSSIL OOZEand CLAY.

Minor Lithologies:Seven SAPROPEL beds occur in thiscore. The beds range from 1-29 cm inthickness and are faintly laminated insome cases; the uppermost bed ismassive and contains pteropods. Twodistinct ASH horizons occur in Sections2 and 6. A number of fine-grained darkgray (5Y 4/1) TURBIDITE intervalsoccur throughout the core.

site 967 hole a core 1h cored 0.0-9.3 mbs reflec- magnetii ... › publications › 160_ir ›...

Documents