NORLEX

Norwegian Interactive Offshore Stratigraphic Lexicon

Felix Gradstein and Oyvind Hammer

Industrial mandate to update the 20+ year Industrial mandate to update the 20+ year old Lithostratigraphic Bulletins 1- 5old Lithostratigraphic Bulletins 1- 5......1600+ wells reported with Formations…1600+ wells reported with Formations…

a new beginning …..

NORLEX Meetings and NORLEX Meetings and Workshops*Workshops*

Neogene – NGU Trondheim, March 2005Neogene – NGU Trondheim, March 2005 Paleogene – Statoil and RWE, Fall 2005Paleogene – Statoil and RWE, Fall 2005 Triassic – Jurassic, RWE, November 2005Triassic – Jurassic, RWE, November 2005 Jurassic – Idemitsu, March 2006Jurassic – Idemitsu, March 2006 Cretaceous – Hydro, April 2006,Cretaceous – Hydro, April 2006, Statoil, May 2006Statoil, May 2006 Annual Workshop – NHM, January 2007Annual Workshop – NHM, January 2007 Annual Workshop - NHM, November 2008Annual Workshop - NHM, November 2008 Special Worskhop - NPD, October 2009 Special Worskhop - NPD, October 2009

Twenty working meetings on Paleogene, Cretaceous, Jurassic* Four long-term planning/policy meetings with NPD- NGFPublic lectures at many conferences.

* About 75 Norwegian professional and academic earth scientists participated* About 75 Norwegian professional and academic earth scientists participated

Policy

Kjell-Sigve Lervik (Statoil and Norw. Strat Committee) at the 2007 NORLEX workshop gave an overview of activities of the Norwegian Stratigraphic Committee (NSC),

and advised to follow the guidelines and recommendations of the International Stratigraphic Guide (2nd edition, 1994).

Regional Literature

Interactive ’Oracle’ System forInteractive ’Oracle’ System forBiostratigraphy, Taxonomy and Well CorrelationsBiostratigraphy, Taxonomy and Well Correlations

12000 offshorefossil names + synonyms

Thickness Map Hordaland Group, northern North Sea, with lineaments

Wells with rings have Rogaland + Hordaland tops Red wells have biostrat = clickable

The final manuscript of this The final manuscript of this study was reviewed in study was reviewed in detail by Jon Gjelberg, detail by Jon Gjelberg, James Ogg, Vigdis Løvø, James Ogg, Vigdis Løvø, Tom Dreyer and Mike Tom Dreyer and Mike Charnock. Charnock.

NHM Bulletin 2010NHM Bulletin 2010

Egga Member is used widelyEgga Member is used widely

Not formally definedNot formally defined

Now formally defined in NorlexNow formally defined in Norlex

Since Deegan and Scull (1977) most sandstone units are Members (not Formations), following papers published in UK/NOR and DK.

We appreciate this approach, that is in full agreement with the Stratigraphic Code.

International Commission on StratigraphyInternational Commission on Stratigraphy

www.stratigraphy.orgwww.stratigraphy.org

WHAT DOES THE STRATIGRAPHIC CODE SAY:WHAT DOES THE STRATIGRAPHIC CODE SAY:

The formation is the primary formal unit of lithostratigraphy, identified by lithologic composition and stratigraphic position. Where a unit changes laterally, or through abrupt gradation, or intertongues with a markedly different kind of rock, a new unit should be proposed for the different rock type.

A member is the formal lithostratigraphic unit next in rank below the formation. It is recognized as a named entity within one or more formations because its lithology distinguishes it from adjacent parts of the formation(s).

Change in rank of a stratigraphic unit does not require redefinition of the unit or of its boundaries, or altering of the geographic part of its name. Thus, a formation may be reduced to a member without changing its name.

Redefinition should make a unit more useful, easier to recognize, map and extend through the area of its occurrence.

Ahmadi et al. (2003), in Millennium Atlas.

Ahmadi et al. (2003), in Millennium Atlas.

• Maureen/Ty unit Formation or Member?– Are Maureen/Ty Sst’s more shoreline attached than the Heimdal Sst’s?– We can not see that that is the case, and accordingly propose Maureen as a Member

Slope to shelf facies

From Ahmadi et al. 2003, in Millennium Atlas, (in agreement with Knox & Holloway 1992 and Mudge & Copestake 1992).

• Fiskebank sand unit Formation or Member ?

– Beauly Mbr (intra Balder) of Millennium Atlas comparable in genesis to the Fiskebank unit (intra Sele ).

– In this context, the Fiskebank unit should be ranked as Member.

Delta Plain Facies shoreline linked

MEMBERS

Cretaceous Norwegian SeaCretaceous Norwegian Sea

NORLEX Proposed Units in REDNORLEX Proposed Units in RED

NORLEX – Jurassic lithostratigraphy

STATFJORD GP.

DUNLIN GP.

BRENT GP.

HEGRE GP

BÅT GP.

FANGST GP.

VIKING GP

Ness Fm.Ness Fm.

Tarbert Fm.

Etive Fm.

Rannoch Fm.

Heather Fm.

Draupne Fm.

Rogn Fm.

Garn Fm.

Not Fm.

Ile Fm.

Ror Fm. Tofte Fm.

Tilje Fm.

Åre Fm.

JUR

AS

SIC

U

M

L

CR

ET

.T

RI.

SOUTHERNNorth Sea

NORWEGIAN-DANISH BASIN

SOUTHERNViking Graben

NORTHERNNORTH SEA

TRØNDELAGPLATFORM

HALTENTERRACE

NORDLANDRIDGE

Haut.

Valang.

Ryaz.

Volg.

Kimm.

Oxf.

Call.

Bath.

Bajoc.

Aalen.

Toarc.

Plienc.

Sinem.

Hett.

Rhæt.

Nor.

Ula

Fm

. Tau Fm.

Mandal Fm.

Hauge-sund Fm.

Sauda Fm.

Flekkefjord Fm.

E

Farsund Fm.

Egersund Fm.

Gassum Fm.

Fjerrit-slevFm.

MuninMbr

Drake Fm.

Cook Fm.

Amundsen Fm. Johansen Fm.Burton Fm.

Nansen Fm.Eriksson Fm.

Raude Fm.

S

FK

S: Sognefjord Fm. F: Fensfjord Fm. K: Krossfjord Fm. O: Oseberg Fm. B: Broom Fm.E: Eldfisk Mbr. A: Atrid Mbr. Fr: Fraoch Mbr. F: Fenris Mbr.

A

OB

Tarbert Fm.Heather Fm.

FrF

Insufficient and deficient BiostratigraphyInsufficient and deficient Biostratigraphy

No Sequence-Stratigraphy, no Cyclo-StratigraphyNo Sequence-Stratigraphy, no Cyclo-Stratigraphy

Litho - Chronostratigraphy to be updated ! Litho - Chronostratigraphy to be updated !

Summary of 2010 Norlex PlanSummary of 2010 Norlex Plan

Finalize the newly proposed Paleogene, Cretaceous and Jurassic Lithostratigraphy

More and better formation and member tops in wells.

Oracle style database of Paleozoic and Mesozoic bio/lithostratigraphy of the Barents Sea

Organize Norway -UK - Danmark workshop to improve stratigraphic integration ..clarify lithostratigraphic ambiguities across political borders (e.g. Heno versus Ula Fms) ..better correlate Triassic units in UK and Norwegian sectors of North Sea

Expand Norlex web pages to better present supra-regional content

What is STRATLEX ?What is STRATLEX ?

Concise International Stratigraphic GuideConcise International Stratigraphic Guide

Guidelines to Lithostratigraphy and BiostratigraphyGuidelines to Lithostratigraphy and Biostratigraphy

Lithostratigraphic templateLithostratigraphic template

Geologic Time Scale (new interactive GTS book)Geologic Time Scale (new interactive GTS book)

Staff, contributors and sponsorsStaff, contributors and sponsors

Links Organisations and OthersLinks Organisations and Others

Email usEmail us

STRATLEXSTRATLEXPortal for Stratigraphic Nomenclature and Interactive LexiconPortal for Stratigraphic Nomenclature and Interactive Lexicon

Danmark - Danmark - biostratigraphybiostratigraphy lithostratigraphylithostratigraphy sequence stratigraphysequence stratigraphy chronostratigraphychronostratigraphy

Great Britain -Great Britain -

Greenland -Greenland -

The Netherlands -The Netherlands -

Russia (incl. Novaya Zemlya) –Russia (incl. Novaya Zemlya) –

Eastern Canada – (= BASIN portal)Eastern Canada – (= BASIN portal)

Regional LiteratureRegional Literature

STRATLEXSTRATLEXPortal for Stratigraphic Nomenclature and Interactive LexiconPortal for Stratigraphic Nomenclature and Interactive Lexicon

NORLEXNORLEXNorwegian Interactive Stratigraphic LexiconNorwegian Interactive Stratigraphic Lexicon

Guidelines and ObjectivesGuidelines and Objectives

Links organisations and otherLinks organisations and other

LithostratigraphyLithostratigraphy Offshore Formation TopsOffshore Formation Tops Wells by MapWells by Map Formations and Members Description Formations and Members Description Lithostratgraphic ChartsLithostratgraphic Charts

BiostratigraphyBiostratigraphy Regional Biozonations by IntervalRegional Biozonations by Interval Zonal SearchZonal Search Master Dictionary with search menusMaster Dictionary with search menus Well data from selected authorsWell data from selected authors

Selected literatureSelected literature

Scanned well reportsScanned well reports

Improve understanding of Vidar Member Improve understanding of Vidar Member (catastrophic mass flow) and P/E boundary (catastrophic mass flow) and P/E boundary

No MFS - No MFS -

maximum flooding surface

maximum flooding surface

tables for regional use

tables for regional use

Interactive on Norlex websiteInteractive on Norlex website

No No Norwegian Atlas

Norwegian Atlas

of Triassic through Pleisto

cene

of Triassic through Pleisto

cene

Microfossil Biostratigraphy

Microfossil Biostratigraphy

A CALL FOR ACTION ! A CALL FOR ACTION !

The lack of response from people who are and should be involved in the The lack of response from people who are and should be involved in the lithostratigraphy of the various parts of the succession is unbelievable… lithostratigraphy of the various parts of the succession is unbelievable…

Also, the time is clearly ripe for UK/Danish/Dutch/Norwegian cooperation; Also, the time is clearly ripe for UK/Danish/Dutch/Norwegian cooperation; British and Norwegian systems must now be coordinated. British and Norwegian systems must now be coordinated.

David Worsley (Nov 2009)David Worsley (Nov 2009)

Dear Felix, Dear Felix, ……………….I look forward to hearing from you again and working with you in the .I look forward to hearing from you again and working with you in the future, both with respect to BGS and my involvement as Secretary of the future, both with respect to BGS and my involvement as Secretary of the Geological Society’s Stratigraphy Commission.Geological Society’s Stratigraphy Commission.Kind regardsKind regardsColin Colin Dr Colin Waters, British Geological SurveyDr Colin Waters, British Geological Survey

Linking Norway and UK subsurface Linking Norway and UK subsurface stratigraphy …Triassic….stratigraphy …Triassic….

Updated UK-Norway North Sea Stratigraphic Wall ChartUpdated UK-Norway North Sea Stratigraphic Wall Chart

ACKNOWLEDGEMENTSACKNOWLEDGEMENTS

We like to acknowledge the Norwegian operations of We like to acknowledge the Norwegian operations of Chevron, Dong, ENI, Endeavour Chevron, Dong, ENI, Endeavour Energy, RWE, Hydro, Idemitsu, Lundin, ConocoPhillips, Shell and StatoilEnergy, RWE, Hydro, Idemitsu, Lundin, ConocoPhillips, Shell and Statoil for financial for financial support. support.

The The Norwegian Petroleum DirectorateNorwegian Petroleum Directorate provided detailed access to cultural and science provided detailed access to cultural and science technical data in and technical data in and behindbehind the ‘Fakta Siden’. the ‘Fakta Siden’.

The The International Commission on StratigraphyInternational Commission on Stratigraphy provided long term guidance and advice with provided long term guidance and advice with the standards and nomenclature in stratigraphythe standards and nomenclature in stratigraphy

Many scientific administrators and geoscientists and have made vital contributions. In Many scientific administrators and geoscientists and have made vital contributions. In particular, we like to acknowledge particular, we like to acknowledge Elen Roaldset, Elisabeth AronsenElen Roaldset, Elisabeth Aronsen and and Arne StabellArne Stabell, , respectively ex-Director, Executive Secretary and IT Manager of the Museum of Natural respectively ex-Director, Executive Secretary and IT Manager of the Museum of Natural History that houses and administrates NORLEX, History that houses and administrates NORLEX, Eric ToogoodEric Toogood, Manager of the Diskos , Manager of the Diskos Project, and geoscience colleagues Project, and geoscience colleagues Harald Brunstad, Mike Charnock, Terje Hellem, Erik Harald Brunstad, Mike Charnock, Terje Hellem, Erik Anthonissen,Anthonissen, Sorin Filipescu, Mike Kaminski, James Ogg, Adam Lugowski, Filippos Sorin Filipescu, Mike Kaminski, James Ogg, Adam Lugowski, Filippos Tsikalas, Steve Crittenden, Luis Vergara, Winfried Dallmann, Robert Williams, Jon Tsikalas, Steve Crittenden, Luis Vergara, Winfried Dallmann, Robert Williams, Jon Gjelberg, Tom Dreyer, Vigdis, Løvø, Gitte Laursen, Iain Prince, Martin Pearce and Jan Gjelberg, Tom Dreyer, Vigdis, Løvø, Gitte Laursen, Iain Prince, Martin Pearce and Jan Zalasiewicz.Zalasiewicz.