biostratigraphic program design and management • interpretation and integration

Greater Cook Inlet Stratigraphic Palynology Control Database and Study
- Now available -

This stratigraphic control database consists of palynological biostratigraphy for 84 wells and one outcrop area in the Cook Inlet Region of south-central Alaska (see map and list below). Palynozones are plotted on well logs for 83 wells.

Nineteen stratigraphic intervals can be identified: twelve Tertiary and seven Mesozoic. The Tertiary intervals are driven primarily by climate. A stratigraphic framework is presented that relates the Tertiary intervals to well known, age-constrained data from outside the Cook Inlet Basin. The Mesozoic intervals are defined by traditional first and last appearance events.

Location map of the 85 stratigraphic palynology records for the Greater Cook Inlet Region.

The database was completed in December 2006.

The report consists of:
1) Explanatory text defining the palynozones in Cook Inlet
2) Chronostratigraphic calibration of the palynozones
3) Data reports in page format
4) Palynozones posted on well logs for 83 wells
5) Data table of wells, depths and palynozones
6) Supporting location maps and stratigraphic figures

The report is provided as:
1) PDF document (download Table of Contents pdf)
2) Data table
3) Fully functional, stand-alone database application

Database specs:
Records in the database 85
Zones in the stratigraphic framework 19
Average number of analyses per well 91
Average number of zones per well 7
Number of samples in the database 7735
Database initiated 01/06 Complete 12/06

Uniqueness of the database: A comparable database does not exist. Although this work is based on previously acquired oil company palynology data, the zonal framework, final interpretations, and compilation are substantially expanded and very different than the 40-year-old data on which it is based. The original data was collected by multiple analysts, mostly during a 15-year period from the mid-1960s to the early 1980s.
Much effort was required to turn this paper data into a functional and reliable database. The raw data consisted of un-catalogued hand plotted charts with pollen types labeled in cryptic code. The pollen codes were decoded to botanical names. The charts were copied and digitized to numerical data. The data was error checked, combined into groups and transfer functions, then plotted in several visualizations. The new curve-data were interpreted in the context of global climate. A new palynostratigraphic framework, based on robust and reproducible characteristics (events) in this curve data, was developed and calibrated by tying the events to the global climate record, radiometric dates and other fossil age-constrained events. The calibrated palynology zones were then related to Tertiary megafloral stages and Cook Inlet lithostratigraphy. After the new palynostratigraphic framework was developed, the entire database was re-interpreted a second time to ensure consistent application of the new concepts. The interpreted events were integrated with well logs and location information and compiled into the final database.

The database and report are copyrighted.
2006 Biostratigraphy.com, LLC.
Purchase requires agreement to standard data license terms.

Wells included in database API number (12 digit)
Anchor Point 1 502311000500
Bachatna Creek State 1 (36448) 501332017700
Bell Island 1 502831001100
Beluga River 14-19 502831002400
Beluga River 14-3 (244-04) 502832000200
BRU 212-35 502831002700
Chuitna River 3193 1 502831000600
Cook Inlet State 17589 1 508831001200
Cottonwood State 1 502832000100
Deep Creek 1 501331000400
Drift River State 1 507331001600
East MGS St 18751 1 507331003300
Falls Creek 1 501331000500
Foreland Channel 1 507331004900
Forelands Channel 1-A 507331004901
Forelands State (29691) 1 507332002400
Fritz Creek 1 502311000600
Granite Point 1 507331005900
Grayling 1A 507331004400
Happy Valley 31-22 502311000100
Iniskin Unit Beal 1 501211000800
Iniskin Unit Zappa 1 501211000900
Ivan River 44-1 502831000800
J. M. Needham 1 500091000900
Johnson Slough 1 501332017000
Kachemak Bay Outcrop 0
Kalgin Island State 1 507331001500
Kenai Unit 14-6 501331008900
Kustatan 1-A 507331004501
Kustatan Ridge State 1 501332003000
Kustatan River 1 501332015400
Kustatan River Unit 43-30 507332012800
LCI COST 1 552200000100
Lorraine 1 500091000400
MGS A-23-12 507331008400
MGS A-32-11 507331008100
MGS A-32-14 507331008500
MGS A-43-11 507331008200
MGS C-11-26 507332014500
MGS ST 17595 2 507331006800
MGS ST 17595 4 507331007000
MGS ST 18746 1 507331006600
MGS State 1 507331007700
Middle River State 1 501332000500
Middle River State 2 507332013800
Middle River Unit 1 507332003400
Naptowne 24-8 501331001700
Nicolai Creek 1-A 502831002001
Ninilchik 1 501331000300
North Cook Inlet State 1 508831001800
North Fork 41-35 502311000400
North MGS 18745 1-A 507331004000
OCS Y-0086 Puffin 1 552200000300
OCS Y-0136 Loon (Bede) 1 552200000500
OCS Y-0152 Bowhead 1 552200000600
Old Mans Bay 1 507331000900
Point Possession 1 501331003600
Pure Kahiltna 1 502671000100
Redoubt Shoal St 29690 1 507332004000
Redoubt Shoal St. 2 507332004001
SCU 34-16 501331013300
Soldotna Creek 22-32 501331002200
South Caribou Hills 1 502312000300
South Diamond Gulch 1 502311000800
SRS State 1 507331003700
SRS State 2 507331003000
Stedatna Creek 1 502831000700
Sterling 23-15 501331001200
Stump Lake 41-33 1 502832005500
Susitna State 1 502831001000
Swan Lake 1 34-27 501331002500
Swan Lake 2 501331002100
Tenneco State 1 (36465) 507332003300
Trading Bay 1A 507331005200
Trading Bay 3 507331005400
Trail Ridge 1 502832006500
Tyonek 1-1A 502831002901
Tyonek Reserve 1 502831000100
Tyonek St 17586 2 502831002800
West Foreland 1 501331002800
West Foreland 3 507331004600
West Foreland 4 507331003500
West Foreland Unit 2 501331002700
West Foreland Unit 5 507332009600
West Foreland Unit 5-A 507332009601

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This material is copyrighted - 2006 Biostratigraphy.com, LLC. Purchase requires agreement to standard data license terms.

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