41. data report: major- and minor-element analysis … · 41. data report: major- and minor-element...
TRANSCRIPT
Silver, E. A., Rangin, C., von Breymann, M. T., et al., 1991Proceedings of the Ocean Drilling Program, Scientific Results, Vol. 124
41. DATA REPORT: MAJOR- AND MINOR-ELEMENT ANALYSIS OF SEDIMENTSFROM SITES 767, 768, AND 7691
Garrett W. Brass,2 Don Sims,3 Stephen E. Calvert,4 and Marta T. von Breymann3
INTRODUCTION
This data report tabulates results of X-ray fluorescenceanalysis of sediments from three sites drilled during OceanDrilling Program Leg 124. Two of these sites were drilled inthe abyssal plain of the Celebes (767) and Sulu (768) seas, inwater depths of 4905 and 4385 m, respectively. The seismicrecords at these sites reveal a sedimentary section that ap-pears complete enough to obtain a good stratigraphic historyof the basins, one of the main drilling objectives at these sites.
Site 769 is located on the southeast flank of the CagayanRidge in 3644 m of water. The Cagayan Ridge is 120 km wideand it is covered locally by reef carbonates and Quaternaryvolcanic rocks. Drilling at this site was designed to establishthe Neogene evolution of the restricted paleoenvironment ofthe Sulu Sea in a position that has been protected fromterrigenous turbidite input.
These sediments record major changes in depositionalprocesses and provenance of sediment that reflect the tectonicand paleoceanographic history of these western Pacific basins.
METHODS AND RESULTS
Major ElementsMajor-element analysis of the sediments was carried out
on board the JOIDES Resolution. The samples were dried at110 °C for at least 2 hr and then ground. Then 5 g of theresulting powder were mixed with 30 drops of polyvinylalcohol binder and pressed with 7 tons pressure into analuminum cap. These pellets were analyzed and saved forpost-cruise minor-element analysis.
The fully automated ARL 8420 wavelength-dispersiveX-ray fluorescence system was calibrated using betweenseven and ten standards for each element. Calibration of the
1 Silver, E. A., Rangin, C , von Breymann, M. T., et al., 1991. Proc. ODP,Sci. Results, 124: College Station, TX (Ocean Drilling Program).
Division of Marine Geology and Geophysics, Rosenstiel School of Marineand Atmospheric Science, University of Miami, 4600 Rickenbaker Causeway,Miami, FL 33149, U.S.A.
3 Ocean Drilling Program, Texas A&M University, College Station, TX77845, U.S.A.
4 Department of Oceanography, University of British Columbia, Vancou-ver, British Columbia, V6T 1W5, Canada.
method was obtained by a series of international geochemicalreference standards obtained from Geostandards (France), theGeological Survey of Japan, and the United States GeologicalSurvey. An element standard and a drift standard wereincluded with every six samples analyzed. Results are re-ported as the weight percentage of SiO2, TiO2, A12O3, Fe2O3,MnO, MgO, CaO, Na2O, K2O, P2O5, and the sum of theseoxide concentrations. The oxide sums are significantly lessthan 100% where CaCO3 is present, because we have notdetermined the carbonate-carbon contents. In addition, thesum of abundances may not equal 100% due to the presence ofother potentially important anions such as chloride, sulfide,and hydroxyl, which were not analyzed for.
Minor ElementsThe same pellets used for the major-element determination
were used for the post-cruise analysis of minor elements at theUniversity of British Columbia. The methods of analysisfollow those described in more detail by Calvert (1990). Alldiscs were analyzed using a Phillips 1400 fully-automatedX-ray spectrometer under computer control. Calibration wasobtained by reference to a series of international standards(Abbey, 1983). A representative standard was run with everyfive samples and the results have been drift-corrected.
The precision of major-element abundances is estimated tobe within 2% (1 sigma) of the value reported, with a lower limitof ± 0.2 wt%. Coefficients of variation of minor elements werewithin 5% (1 sigma). The results of the major- and minor-element analysis are listed for individual sites in Tables 1through 6.
REFERENCES
Abbey, S., 1983. Studies in "standard samples" of silicate rocks andminerals 1969-1982. Geol. Surv. Can. Pap., 83-15:114.
Calvert, S. E., 1990. Geochemistry and origin of the Holocenesapropel in the Black Sea. In Ittekot, V., Kempe, S., Michaelis,W., and Spitzy, A. (Eds.), Facets of Modern Biogeochemistry,Berlin (Springer-Verlag), 326-352.
Date of initial receipt: 6 July 1990Date of acceptance: 21 February 1991Ms 124B-149
531
DATA REPORT
Table 1. Major-element data (percent) for Site 767.
Core, section,interval(cm)
124-767B-
1H-1, 46-523H-l ,51-574H-1,53-595H-1, 55-616H-1, 50-567H-1,47-538H-1, 107-1109H-1,48-54
1 OH-1,47-5313X-1, 35-4114X-1,3-815X-1, 54-6017X-1, 70-7618X-1, 34-4019X-1, 36-4220X-1, 54-6021X-1, 54-6022x-1,40-4623X-1,24-3024X-1, 35-4125X-1,49-5527X-1, 47-5328X-1, 43-4929X-1,49-5530X-1,44-5031X-1, 40-4632X-1, 44-5033X-1, 50-5634X-1, 52-5835X-1, 57-6336X-1,45-5137X-1, 46-5238X-1, 88-9239X-1, 32-3840X-2, 12-1842X-1, 126-13043X-1, 12-1544X-1, 142-14747X-3, 130-13648X-1, 44-5050X-1, 31-3651X-3, 92-9852X-3, 80-8653X-4, 108-11454X-1,46-5255X-5, 106-11256X-1, 44-4657X-1, 8-1558X-6, 44-5159X-4, 140-14660X-1, 16-1063X-3, 100-10664X-6, 42-4766X-4, 6-1267X-1, 130-13668X-CC, 21-2769X-4, 10-1670X-1, 55-6171X-6, 29-3472X-2, 70-7673X-2, 89-9574X-7, 31-3875X-1, 4-1076X-CC, 5-1177X-1, 57-6378X-CC, 0-6
124-767C-
1R-1,40-452R-1, 29-353R-2, 22-264R-1, 37-445R-1, 80-866R-1, 72-797R-1, 44-498R-2, 74-809R-1, 82-87
11R-1,60-66
Depth(mbsf)
0.4619.0128.5338.0547.5056.9767.0771.9881.47
109.95119.13129.44149.00158.34167.96177.84184.34193.90203.54213.45223.39242.67252.33261.89271.44282.60290.84300.60310.32319.97329.55339.26349.38358.42369.42388.36401.42407.92439.70445.54464.41478.72488.20498.58502.96519.26521.50530.88548.44556.10559.90592.80606.42621.93628.70646.68650.90656.55673.39677.50687.29703.91704.24722.95723.77733.87
680.40689.79700.22707.87717.30726.92736.24745.54753.82773.00
SiO2
61.858.156.361.958.356.256.960.058.054.755.957.054.158.355.754.955.554.156.756.156.956.557.255.658.457.252.457.855.759.156.557.758.657.656.360.860.760.362.555.658.863.063.261.562.761.663.962.654.762.963.062.962.862.061.159.961.160.959.860.259.460.259.161.661.762.0
60.558.761.260.460.460.160.061.963.263.7
TiO2
0.60.80.60.60.70.80.80.70.80.70.80.70.80.70.80.80.80.80.80.90.90.90.90.90.81.00.80.90.90.70.90.91.01.00.91.00.80.91.00.80.90.90.90.90.60.90.91.01.00.91.00.91.00.90.90.90.90.91.00.90.80.91.00.80.80.8
0.90.80.90.90.90.80.90.80.80.8
A12O3
15.515.713.415.115.415.817.617.317.714.916.116.517.315.415.517.216.517.917.217.915.818.517.317.817.118.216.716.617.618.618.516.919.119.116.919.019.219.121.118.419.220.420.420.714.220.120.820.919.219.620.720.621.218.320.019.319.520.418.517.916.821.622.816.919.018.5
18.117.320.521.822.017.721.218.519.319.4
Fe2O3
6.27.86.55.87.88.88.26.88.07.78.37.78.27.29.98.68.68.68.18.89.78.89.59.8
10.310.28.8
11.19.66.89.19.99.78.48.18.48.88.07.97.18.27.97.78.46.58.67.58.18.48.48.07.67.6
10.09.2
10.19.99.18.89.38.89.19.68.88.98.7
9.28.28.69.79.3
10.79.58.98.58.6
MnO
0.40.10.60.10.20.10.20.10.10.20.20.50.10.30.0.0.0.0.0.0.0.0.10.10.20.10.40.20.20.0.0.0.0.'0.0.0.
o.;0.I.0.
•
>
0.10.10.10.10.20.0.0.0.0.
o.:o.:0.0.0.20.20.10.20.20.30.40.31.01.01.3
0.20.20.20.20.31.60.50.80.20.2
MgO
3.64.23.93.24.15.24.64.45.14.84.74.64.65.85.54.95.05.25.25.55.64.95.75.35.45.54.85.35.03.14.44.94.74.34.04.34.34.43.43.43.33.03.13.02.23.03.13.02.73.23.03.13.13.03.53.53.63.75.65.26.93.22.82.62.72.7
5.25.53.63.02.92.72.92.72.42.7
CaO
2.93.05.33.42.22.33.02.62.55.64.53.55.65.63.05.44.76.53.93.41.93.02.22.71.71.96.21.73.41.52.61.51.45.44.61.91.52.10.98.42.80.90.70.93.60.90.80.86.00.80.80.80.81.01.11.31.31.11.51.31.51.31.12.11.51.5
1.42.31.21.11.11.61.31.61.31.3
Na2O
4.75.14.85.14.84.84.24.63.74.34.54.84.14.34.34.24.33.93.83.52.83.83.13.12.72.82.62.62.96.03.82.92.22.12.42.72.62.81.31.91.21.2.3.1
1.9.2.2.2
1.2.3.1.2.1.3.6.7.7.6
>.O.7.9.3.1.7
1.41.3
1.82.41.3.1.2.4.2.3.1.2
K2O
2.02.22.22.42.12.02.32.12.11.82.02.41.72.21.82.01.91.41.71.72.12.22.12.32.22.22.12.32.03.12.52.21.91.71.51.41.61.23.21.72.33.23.43.31.83.33.33.31.93.23.43.33.43.32.62.22.22.92.42.92.52.93.12.52.92.9
2.53.32.93.23.12.72.92.93.43.2
P2O5
0.20.20.20.20.10.20.20.20.20.20.20.20.20.30.20.20.20.20.20.10.10.10.20.10.10.20.10.10.10.10.10.10.10.10.10.10.10.10.11.70.10.10.10.10.10.10.10.10.10.10.10.10.10.20.10.10.10.10.10.10.10.20.10.20.20.2
0.10.20.10.10.10.20.20.20.20.1
Total
97.997.193.897.795.796.197.998.798.295.097.197.996.7
100.096.998.297.598.797.698.196.098.898.597.798.999.195.098.597.399.098.797.098.9
100.095.099.699.798.9
101.5100.098.0
100.7100.9100.193.799.8
101.6101.196.1
100.5101.1100.6101.3100.0100.499.2
100.5100.899.999.799.0
101.0100.998.2
100.099.9
99.798.8
100.5101.5101.499.4
100.599.6
100.4101.1
532
DATA REPORT
Table 2. Minor-element data (ppm) for Site 767.
Core, sectioninterval (cm)
124-767B-1H-3H-4H-5H-5H-6H-7H-8H-9H-10H-10H-13X-14X-15X-17X-18X-19X-20X-21X-22X-23X-24X-25X-27X-
1, 46-521, 51-571, 53-591, 55-615, 10-121, 50-561, 47-53i, 107-1101, 48-54[,47-535, 86-87,35-41,3-8, 54-60, 70-76, 34-40, 36-42, 54-60,54-60, 40-46, 24-30, 35-41, 49-55, 47-53
28X-1, 43-4929X-1, 49-5530X-1,44-5031X-32X-33X-34X-35X-36X-37X-38X-
, 40-46, 44-50, 50-56, 52-58, 57-63,45-51, 46-52, 88-92
39X-1,32-3840X-2, 12-1842X-1, 126-13043X-1, 12-1544X-1, 142-14747X-3, 130-13648X-1, 44-5050X-1, 31-3651X-3, 92-9852X-3, 80-8653X-4, 108-11454X-1, 46-5255X-5, 106-11256X-1, 40-4657X-1,8-1558X-6,44-5159X-4, 140-14660X-1, 10-1663X-3, 100-10664X-6, 42-4766X-4, 6-1267X-1, 130-13668X-CC, 21-2769X-4, 10-1670X-1, 55-6171X-6, 29-3472X-2, 70-7673X-2, 89-9574X-7, 31-3775X-1, 4-1076X-CC, 5-1177X-1, 57-6278X-CC, 0-6
124-767C-1R-2R-3R-:4R-5R-6R-7R-8R-29R-111R-
, 40-45, 29-35., 22-26, 37-44, 80-86, 72-79, 44-49, 74-80, 82-87, 60-66
Depth(mbsf)
0.4619.0128.5338.0540.0047.5056.9767.0771.9881.4789.76109.95119.13129.44149.00158.34167.96177.84184.34193.90203.54213.45223.39242.67252.33261.89271.44282.60290.84300.60310.32319.97329.55339.26349.38358.42369.42388.36401.42407.92739.70445.54464.41478.72488.20498.58502.%519.26521.50530.88548.44556.10559.90592.80606.42621.93628.70646.68650.90656.55673.39677.50687.29703.91704.24722.95723.77733.87
680.40689.79700.22707.87717.30726.92736.24745.54753.82773.00
Nb
34443543432443234433434453444466365775661156109106118114101110119856846578769
6681097781010
Zr
1099885102154101811009810294889210180718583897796971001031009510910910197961789410811110311311011321414992127158151153131147145155126146155152151128119111124126109111101135135121134126
113129124136137121134119136133
Y
1316171421171316141717171818151715161416141515132117172224182421172216222222192827622027282723282729212727282729272024272423202726444131
22212426244127383226
Sr
30126932633612820920034628125579379391407420115039153242941336140430733134433221024632220524712521623313424824318615415910411872341071051072531031051014091019610310411211511312610811399112103100196127106
1032141101001031171071069798
Rb
4548494958544150424860384346363141393927363749434751555647614945465753444242402214030721401561475714414414843144145148153138997585114729073123131120145151
8349122140136125127140173152
Pb
10711101858871072784848767810911710614101216811111613812910225302116211320151991818201914261017916762219372732
22101616214124313929
Zn
110118112866210599102929315113850211593869393991059612311611413912912513111112811675102121103111831281078411273114113109108761111041769411497122110801109612411510294114130124113283126
11779135123126136133124127125
Cu
679586121268971019094-5781241251149412713012617010814610812395174129132851201106097102847571908359507066363835363828348345344540402229412347543149170147213276133
668762801162302591337753
Ni
7810410157791998372878689583896391717884871111127894129170123110146945760757172656843307261665456584159566629655559714766677292144971956568708981
12012464687591121805567
Co
6312254435942443302833754365926754951584935493626434035314531353112731232920252727182719181727252626352426242521262326253027342227272424
53423034363333252934
Mn
30621139505796883512359231377842816538162214463439796182110281049110290777855010687181043980159710113092178312517731088100480631969236094771278986715474610068559116601149755904882103610051290133456978912851238864152415672034312827187373734710394
12441912167316392408116634042647312151199
V
1292151681997
1552361691711822
165201169231126193221195265190265205200190285169212181206221135245229231203225173168132189114162178198183115180182191236192170190201153206174183243182159174149185101161157
260155220143193190217161125189
Cr
116977265996107798610269611593120871108410011312414513889137136132145156130147349013415113613188644412974881131171168611411712159124109117126928893891482101312589199586583
1921279191966081848794
Ba
285261298415500236184183186197481220299320346309245252291220324528410258144211185166162142140417299178125149453208182166249240575298289270200262268269786262275277269218200171191194193174144202249297311206
153478535270280213222185311303
Mo
311221111142714213200221121221141012320
;
2203
1223888866
533
DATA REPORT
Table 3. Major-clement data (percent) for Site 768.
Core, section,interval (cm)
124-768B-
1H-2, 65-712H-1, 13-193H-1, 127-1334H-1, 60-665H-2, 70-766H-1, 120-1267H-1, 59-658H-1, 59-659H-1, 49-55
10H-1, 50-5611H-1, 12-1812H-5, 48-5413H-1,50-5614H-2, 57-6315H-1, 80-8616H-1, 27-3317H-1, 50-5618H-1, 50-5619H-1, 47-5320H-1, 45-5121H-1, 50-5625X-CC, 17-2326X-1, 59-6527X-1,105-11128X-1, 52-5829X-1, 52-5830X-1, 110-11631X-1, 110-11632X-1, 82-8833X-2, 7-1334X-1,48-5435X-1, 71-7736X-1, 73-7937X-1, 58-6438X-1, 34-4039X-1,60-66
124-768C-
1R-3, 80-862R-1, 49-553R-1, 31-374R-1, 82-885R-1,44-506R-2, 88-957R-1, 103-1098R-1, 60-689R-1,46-51
1 OR-1,45-5111R-5, 47-5312R-1, 134-14013R-2, 69-7514R-1, 78-8515R-1, 66-7216R-1, 44-5017R-2, 71-7718R-3, 138-14419R-1, 37-4320R-1, 122-12821R-1,58-6322R-1,44-5123R-2, 73-7924R-2, 30-3626R-1, 110-11627R-1, 45-5128R-1, 50-5629R-1, 100-10630R-1, 60-6631R-1, 44_5032R-5, 94-10033R-2, 22-2834R-1, 52-5835R-2, 50-5636R-2, 132-13737R-2, 22-2837R-2. 131-137
Depth(mbsf)
2.154.13
14.7723.6034.7043.2052.0961.5970.9980.5089.62
105.48109.00120.07128.30137.27147.00156.50165.97174.25183.80209.77219.89229.95239.12248.72258.90268.60278.02288.37296.88306.81
326.08335.44345.40
357.00363.39372.71382.92392.24403.78412.13421.30430.66440.35456.07460.54471.09479.29488.86498.34509.71521.58527.27537.82546.88556.24567.73577.00595.70604.75614.40624.50633.70643.24659.34663.82672.32683.40693.92702.52703.61
SiO2
27.335.034.428.518.728.747.244.238.130.745.324.527.558.559.060.259.359.659.659.960.062.662.163.862.963.163.063.064.262.362.564.363.764.562.765.1
63.661.364.464.864.264.763.263.865.363.464.764.963.064.063.864.163.562.863.264.074.462.663.363.263.962.563.363.261.864.165.562.962.663.369.265.661.7
TiO2
0.30.40.30.20.20.30.60.40.40.30.40.20.30.80.80.80.90.80.91.00.90.90.90.90.90.90.80.90.80.80.90.90.90.90.90.9
0.91.00.90.90.90.90.90.90.91.00.90.90.91.01.00.90.90.90.90.90.51.00.90.90.91.01.01.01.00.90.90.91.00.90.60.90.9
A12O3
7.910.69.57.74.87.1
13.012.410.38.7
11.27.98.6
18.618.419.720.620.621.421.521.019.519.720.520.420.121.320.220.419.922.019.719.719.519.818.8
19.720.119.719.419.518.918.819.319.420.318.920.119.220.219.718.418.419.319.318.110.119.518.718.919.420.319.619.620.719.218.120.220.420.115.618.820.3
Fe2O3
2.83.63.32.31.93.06.24.73.43.03.52.62.98.38.38.18.77.78.78.98.67.58.16.97.68.17.27.96.86.57.37.27.77.38.47.1
7.89.17.47.67.47.78.38.17.08.07.57.48.57.98.07.58.28.48.07.94.38.27.98.07.78.48.18.08.47.77.18.28.37.95.57.08.6
MnO
0.10.20.30.20.20.30.10.20.20.10.20.20.20.0.
o.:0.0.0.0.0.0.0.0.0.0.10.10.10.0.0.0.0.0.0.0.
0.10.10.10.00.10.00.20.10.20.10.10.10.20.10.10.10.10.20.10.20.00.10.20.20.10.30.10.10.20.20.10.10.10.20.10.1l.()
MgO
2.52.92.92.21.72.54.63.52.11.92.21.82.04.95.04.54.54.24.44.44.23.94.03.43.84.03.44.03.43.03.53.53.83.84.14.3
4.14.24.13.84.14.14.34.23.53.63.73.33.94.03.73.33.63.43.93.73.93.93.84.23.83.83.93.73.63.83.53.73.83.73.13.53.5
CaO
30.623.923.430.240.329.811.815.022.028.416.835.331.9
1.71.61.01.01.60.90.70.70.70.60.60.60.60.70.50.51.70.50.60.50.50.50.5
0.50.60.50.50.60.50.80.50.50.50.70.51.00.60.61.10.91.00.70.90.90.80.80.80.70.80.70.70.90.70.80.70.70.81.90.80.9
Na2O
3.22.83.13.12.52.12.93.12.92.53.31.41.92.92.82.22.02.41.81.6
:::::::
:::
:
:::
::
.6
.7
.5
.3
.5
.6
.5
.4
.5
.6
.4
.5
.4
.4
.4
.4
.3
.5
.3
.3
.3
.4
.3
.4
.4
.4
.4
.4
.3
.4
.4
.3
.7
.2
.3
.3!.l.2.3.3.2.2.3.2.2.2.3.2.3.2.4.3.2
K2O
1.71.92.01.61.41.82.12.11.71.62.01.71.82.52.63.02.82.73.13.23.23.23.43.93.73.34.13.63.94.14.03.33.43.33.53.1
3.53.53.43.33.33.33.33.63.33.53.33.63.23.43.53.23.23.53.53.01.53.53.23.33.33.63.53.43.73.73.13.73.73.62.83.23.9
P2()5 Total
0.2 76.50. 1 81.30.2 79.30.2 76.10.2 71.80.2 75.70.2 88.70.2 85.70.2 81.20. 1 77.30.2 84.90.2 75.80.2 77.20.2 98.40.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
0.0.0.0.0.0.0.0.0.0.
98.6I 99.8
100.099.8
100.9101.4
I 100.5100.3
I 100.3101.4101.6
I 101.9102.1
I 101.71 101.7I 100.2I 102.21 101.2
101.2101.3101.4101.4
1 101.61 101.41 102.01 101.61 101.6I 101.7
101.1101.9101.5101.9
0.2 101.30.
o.;0.0.
102.3! 101.4
102.6I 101.8
0.2 100.10.
o.;0.
1 100.4! 100.7
101.00.2 100.20.
o.;0.0.0.
o.;0.0.0.0.0.0.0.0.0.0.0.
97.9! 100.9
100.1101.1101.2101.9101.5101.0101.5101.7100.6101.7101.8101.9100.2101.4102.0
534
Table 3 (continued).
DATA REPORT
535
DATA REPORT
Table 4. Minor-element data (ppm) for Site 768.
Core, section,interval (cm)
124-768B-
1H-2, 65-712H-1, 13-193H-1, 127-1334H-1, 60-665H-2, 70-766H-1, 120-1267H-1, 59-658H-1, 59-659H-1, 49-5510H-1, 50-5611H-1, 12-1812H-5, 48-5413H-1, 50-5614H-2, 57-6315H-1, 80-8616H-1, 27-3317H-1, 50-5618H-1, 50-5619H-1, 47-5320H-1,45-5121X-1, 50-5625X-CC, 17-2326X-1, 59-6527X-1, 105-11128X-1, 52-5829X-1, 52-5830X-1, 110-11631X-1, 110-11632X-1, 82-8833X-2, 7-1334X-1, 48-5435X-1, 71-7736X-1,73-7937X-1, 58-6438X-1,34-4039X-1, 60-66
124-768C-
1R-3, 80-862R-1,49-553R-1, 31-374R-1,82-885R. 1,44-506R-2, 88-957R-1, 103-1098R-1,60-689R-1,46-5110R-1, 45-5111R-5, 47-5312R-1, 134-14013R-2, 69-7514R-1, 78-8515R-1, 66-7216R-1,44-5017R-2, 71-7718R-3, 138-14419R-1,37-4320R-1, 122-12821R-1, 58-6322R-1,44-5123R-2, 73-7924R-2, 30-3626R-1, 110-11627R-1, 45-5128R-1, 50-5629R-1, 100-10630R-1, 60-6631R-1, 44-5032R-5, 94-10033R-2, 22-2834R-1, 52-5835R-2, 50-5636R-2, 132-13737R-2, 22-2837R-2, 131-137
Depth(mbsf)
2.154.1314.7723.6034.7043.2052.0961.5970.9980.5089.62105.48109.00120.07128.30137.27147.00156.50165.97174.25183.80209.77219.89229.95239.12248.72258.90268.60278.02288.37296.88306.81316.60326.08335.44345.40
357.00363.39372.71382.92392.24403.78412.13421.30430.66440.35456.07460.54471.09479.29488.86498.34509.71521.58527.27537.82546.88556.24567.73577.00595.70604.75614.40624.50633.70634.24659.34663.82672.32683.40693.92702.52703.61
Nb
454234454443487810791089912101012101314131010111010
119111111121011111112121211111181210116111011119101110111011111171011
Zr
55636652446177768065875162102109120125122128128137152161165133165151146168171152181147153150181
157131161160160157161153167151163159167157157180139160158172191152164153172150160160143149176154143156105188135
Y
141415121014121412121313142024262619242321212325252526242832292325252624
24252627272629282624272731282831222830301329282930262730282926272728192427
Sr
812677750859113093349755472184361887378918916612712319910088899189829795838673139738781798480
8184898585879184878995899588841029898919574949085908485848880797679831278180
Rb
47515736334851544338414444819211110586117122129135143162165137171154165183169139141132149129
14713714714513914614215214115414416614315114313713616016312948150135140141151154138154158125155153155124122171
Pb
98131171281311131117131818332817282324201919212526172428311518191917
2017212022151420252223231620201914231612221171918171912242415212020151628
Zn
10485847361799997767478787012613512713411411813812211612297124135113108109114116123104103109102
1031141111061041021241231051151081121121149410094109122984310093961321061119610310288106961188197140
Cu
109676510454887271651146010255758711110452945747494825375738333438403532314029
4062373434373137404844403943263040364030424292530393826293621303239313068
Ni
7271675747869373515144555097991049776101104979397797591778687997795908386116
9098106781097610585103829477988887925992958579729611210372979580911009177954590101
Co
6030313392294712949323128252532282627292524252414182921182329222619201926
20232219242220202219181920182022212224243522202422202124234433312224203124
Mn
164125773384263626203222116422172368169818322200211196696111015797215765285916516024114965744964475211133457445392342409423
44246736129559930816833621373102060733116754127161147598122411061750256107812311536912221611721102126712021090809624118153311537698
V
82998370607217711391134915974137190178218222190222245206222167213201158225154142180187178171201171
17619817917418019116617515917115218915716515715317416817715358181159167171178180170180167154175182169114143180
Cr
57726454425299754842475270112142124147116121146148160154125138153114172139128132170161159165206
16613816213517215416815715615015313815115615713511913916014116914315517316314715715813513914915115114076150120
Ba
8313911811814410518117219515321210486181288452606372296233237237257349278231421260432524439254238235262230
247270253253218226221223227239206254221221230243228250263233161245236232249245243227240232219240230236333224244
Mo
(.)
1121121110201110
2121122121211122121222332224333322333
536
DATA REPORT
Table 4 (continued).
Core, section,interval (cm)
38R-3, 22-2839R-3.50-5640R-3, 10-1641R-42R-43R-44R-45R-46R-47R-48R-:50R-51R-52R-
, 34-40, 45-51, 82-88,93-99, 59-65, 76-82,50-56i, 76-82, 40-46, 76-81,90-96
53R-3, 50-5554R-2, 50-5555R-1, 0-556R-2, 17-2258R-2, 0-559R-6, 19-2360R-2, 66-7261R-2, 144-14962R-3, 22-2663R-2, 20-2464R-2, 15-2065R-2, 40-4566R-2, 3-867R-2, 13-1868R-3, 12-1669R-2, 17-2169R-4, 72-7870R-2, 8-1371R-2, 7-1272R-1, 82-88
Depth(mbsf)
713.72723.70733.00739.94749.75759.32769.00778.29788.16797.40810.36828.60838.66845.50857.80865.77873.70885.07903.90919.69923.86934.34944.22952.00961.65971.60980.93990.631001.821009.971013.521019.181028.771037.72
Nb
1178911810865422334331123132331224225
Zr
15015512613213013712212910591987311874988574145153122114122104175101164145111129927110711693
Y
30382527262625261826252226242429213235282237293419285938372923384030
Sr
861467878787777821411551533822571662663393173159124218209253176117922802432271535922532989
Rb
166771651701621561651517971775215115639694101714292314132863181913435222853
Pb
232418132012172523219721110422732254262615114421
Zn
1208515211711610898111111103909062857372695144408156704146507480599065111109107
Cu
3526526291275066388847101179355711129303272017373364812147
Ni
8928708061675774691025631114825362712169111112131362210153643231775
Co
2418222923202225233824281726202111341422202526191561621201519242527
Mn
13436558117397249689901082210536532486164510361346114212221285971982110810411016125486167412621015135912871000735232222602484
V
1716717919120017515720716196128243661781152861187614204936101192870172430611439764125
Cr
1464910811011010197104808166501552277949151191011209102271193646311770
Ba
24452625024424324924846317418943223322910928824412825122919834525221325515794279236273162275160234407
Mo
2
;i
2032
:
:
2
n0ll401011111011
537
DATA REPORT
Table 5. Major-element data (percent) for Site 769.
Core, section,interval (cm)
124-769B-
1H-3, 100-1062H-3H-4H-5H-6H-7H-8H-9H-
10H-11H-12H-13H-14H-15H-16H-17H-18H-19H-20H-21H-:22H-23H-24H-25X-;26X-27X-1
1, 50-56[, 46-521,60-66I, 50-56,60-66, 50-56, 50-56,54-60
5, 30-36, 79-85, 50-56, 50-56, 120-126, 50-56, 50-56, 95-101, 55-61, 50-56, 80-86
>, 100-106, 50-56, 50-56,54-60,50-56,50-56,50-56
28X-1, 50-5629X-1, 50-5630X-2, 64-70
124-769C-
1R-1, 116-1222R-1,60-66
Depth(mbsf)
4.005.90
15.3625.0034.4044.0053.4062.9072.4487.7091.69
100.90110.40120.60129.40138.90148.85157.95167.40174.10185.30192.80202.30211.84222.80230.90240.60250.20259.90271.14
262.26271.40
SiO2
36.333.438.528.726.840.135.638.332.729.230.444.656.641.958.257.358.960.260.058.260.257.860.360.162.362.562.462.360.758.6
60.558.4
TiO2
0.40.40.40.30.30.40.30.30.30.20.30.40.80.50.90.90.90.90.90.80.80.80.80.80.80.90.90.80.90.8
0.90.8
A12O3
11.410.410.78.28.0
10.89.19.48.28.49.2
12.118.613.021.420.220.320.620.219.219.618.019.818.219.520.521.421.019.616.2
19.616.5
Fe2O3
4.24.24.03.32.63.93.33.73.22.82.94.57.65.18.69.38.88.98.68.28.67.88.68.58.27.87.88.09.39.0
9.28.6
MnO
0.20.30.10.20.20.20.20.30.20.20.20.10.10.20.11.00.50.20.13.00.20.21.52.10.10.10.10.10.10.6
0.21.3
MgO
3.63.12.92.52.52.82.72.72.52.12.33.34.42.94.54.64.54.24.14.44.33.94.03.94.03.73.63.64.05.4
4.15.4
CaO
23.024.820.529.632.619.624.421.226.830.328.914.83.0
17.5
(
:
;
.4
.8
.3
.1
.7
.0S.9.1.3
0.80.70.70.70.81.7
0.91.8
Na2O
2.02.02.62.02.43.32.32.92.62.32.22.83.11.62.0
:
::
.8
.8
.6
.8
.7
.9
.7
.8
.8
.8
.6
.5
.6
.83.0
1.92.8
K2O
2.0.8.9.7.7.7.9.8.6.6.7
2.02.32.12.62.72.93.33.22.93.03.03.03.03.33.63.63.53.22.9
3.12.9
P2C)5 Total
0.2 83.30.2 80.50.2 81.80.2 76.80.2 77.10.2 83.00. 1 80.00.2 80.80. 78.10.2 77.20.2 78.10.2 84.80. 96.70.2 84.90. 99.90.4 99.90.0.0.
o.;0.0.0.0.0.0.0.0.0.
o.;
o.:
100.01 100.9
100.0> 100.3I 99.7
97.1101.099.8
100.9101.5102.0101.7100.5
! 98.3
'. 100.70.2 98.6
538
DATA REPORT
Table 6. Minor-element data (ppm) for Site 769.
Core, section,interval (cm)
124-769B-
1H-3, 100-1062H-3H-4H-5H-6H-7H-8H-9H-10H-11H-12H-13H-14H-15H-16H-17H-18H-19H-20H-21H-:22H-23H-24H-25X-:26X-127X-28X-29X-
, 50-56, 46-52,60-66, 50-56,60-66, 50-56, 50-56, 54-605, 30-36, 79-85,50-56, 50-56, 120-126,50-56, 50-56, 95-101,55-61,50-56,80-86I, 100-106, 50-56, 50-56,54-60., 50-56, 50-56,50-56,50-56,50-56
30X-2, 64-70
124-769C-
1R-1, 116-1222R-1,60-66
Depth(mbsf)
4.005.9015.3625.0034.4044.0053.4062.9072.4487.7091.69100.90110.40120.60129.40138.90148.85157.95167.40174.10185.30192.80202.30211.84222.80230.90240.60250.20259.90271.14
262.26271.40
Nb
4222443524346678109108878810119985
74
Zr
6363745456766773636565851188113312112712611711412010912311712213013313410990
12399
Y
13121291314141412131515202022332226253025253029292527292421
2825
Sr
624656738869823706779675774839791555225555147121108891021121021699495888183868592
9593
Rb
5243454144424846403846608456928810812611410711611011712113715615415411048
11052
Pb
1711152111015121312142321182127304224153924228162238102811
2216
Zn
79827568798397758871699810910713312712813112311611112412597129128129108113107
128104
Cu
54626168819784657066606876741005774798961566758129688711712374120
95126
Ni
7180636464638475775151719997918610692899210497102781006077688853
10061
Co
172129192744212720181418211822205595322832263423252726263542
3134
Mn
2246323513762308199621581889354219012027220910416971583769701937211539785
1890914291353
118211590610037999426209415124
19149237
V
100112931108511110281896987137221135237152197148199152173167212137174252247252170127
180135
Cr
767260625263595855445680126100133115136120138991241241081031081191391119251
10144
Ba
143131170125119196216140159117129319552367522327450373521348621721750933664560545653539649
638591
Mo
010
;»
21001210111001022
14
539