Transcript Put title here.

StrataPlot, a Graphic Correlation
Tool for Biostratigraphic
Analysis
Emil Platon
Research Assistant Professor
Energy & Geoscience Institute at the
University of Utah
This talk
 Basic introduction to Biostratigraphy
 Graphic correlation method
 StrataPlot specifications
 StrataPlot demonstration
Biostratigraphy
 Biostratigraphy is the science of dating
rocks by using the fossils contained within
them.
 Index Fossil - short life span
- broad geographic distribution
- common
- easy to identify
http://en.wikipedia.org/wiki/Biostratigraphy
Biostratigraphy - Geologic Time
http://www.ucmp.berkeley.edu/help/timeform.html
Biostratigraphy - Fossils

Macrofossils
Ammonites (cephalopods)
•
•
very good index fossil
http://paleodirect.com/ammonites.htm
Microfossils
Foraminifera (single-celled protists)
•
Planktonic species - good index fossils
Biostratigraphy - Biozonation
Interval Zone
Total Range Zone
c "sp. f T.R.Z."
Time
"sp. c I.Z."
b
"sp. b I.Z."
"sp. a I.Z."
a
f
e
"sp. e I.Z."
"sp. d T.R.Z."
Partial Range Zone
d
"sp. i I.Z."
i
"sp. h P.R.Z."
"sp. g T.R.Z."
h
g
After M. Caron, 1979
Biostratigraphy - Biozonation
MESOGEAN
M.A.
Ammonite
BOREAL
Foraminifera
Dic. primitiva
Dic. concavata
Coniacian
88
Subprion. neptuni
Romanic. deveriai
Marg. schneegansi
Marg. coronata
IZ
PRZ
Turonian
Selwynoc. woolgari
Romanic. oraniss.
P. helvetica
Mammi. nodosoides
Inoc. labiatus
90
W. archaeocretacea
Cenomanian
R. cushmani
P. helvetica
TRZ
TRZ
PRZ
W. archaeocretacea PRZ
R. cushmani
After M. Caron, 1979
Biostratigraphy - Graphic
Correlation
 Uses any event that can be tied to the
absolute time.
– First and last stratigraphic occurrences of
taxa (e.g., 1st appearance of P. helvetica in
the geologic)
– First abundant occurrence of some taxa
– Magnetic reversals.
– etc.
Graphic Correlation - Composite
Standard
Graphic Correlation
StrataPlot - Specifications
 Standalone Windows application
 GUI + Database
 Installation:
– Application
– Data Base
– Borland Builder Data Base Engine
StrataPlot - Database
Paleo 24
Oracle
StrataPlot
DB
Paradox
 Research localities studied by AMOCO
exploration and later donated to EGI by
British Petroleum
StrataPlot - Public Database
 Public Data:
– More than 2000 public localities
– More than 700 interpreted localities
 Six Composite Standards
 Time Scale Recalibration
– Mesozoic and Cenozoic - Gracianski et al.
(1998)
– Paleozoic - Gradstein et al. (2004)
Locality - Composite Standard
Specifications - Data Loading
Specifications - Data Loading
Specifications - Data Loading
Specifications - Graphing
Specifications - Section Data
Specifications - Graphing
Specs. - Save Interpretation
Specs. - Save Interpretation
Specs. - Save Interpretation
Specifications - Taxon Age
Specifications - Distribution
Charts
Specifications - Graph Editing
Specifications - Section Age
StrataPlot - Current Status
 Beta Testing
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Dr. Thomas D. Demchuck - ConocoPhillips - USA
Dr. Peter P. McLaughlin - Delaware Geological Survey - USA
Dr. Matthew Wakefield BG Group - UK
Dr. Peter Griggs - BHPBillton - USA
Dr. Jason Crux - BHPBillton - USA
Dr. Vladimir Davydov - Boise State University - USA
Dr. Ned Covas - Nobel Energy Inc. - USA
Dr. Miroslav Bubik - National Geological Survey - Czeck Republic
Dr. Baraboshkin Evgenij Jurievich - Moskow State Univeristy - Russia
Dr. William N. Krebs - Petronas - Malayesia
Dr. Jeffrey A. Stein - Consulting Palynologist -USA
Dr. Richard Howe - Shell - USA*
Dr. Anthony Gary - University of Utah - USA
Dr. Sudeep Kanungo - University of Utah - USA
Dr. Armando Cunha - Petrobras - Brazil
StrataPlot - Current Status
 More beta testing needed
Emil PLATON
[email protected]
801-585-7013
If you wish to call in to ask the
presenter questions or to
participate in the weekly
meeting, please dial in
at 1.888.629.9921 and put in
the passcode 5383118# when
prompted.