TableA1 Locations of measured sections described in this study TableB1 Summary of palynologic and foraminifera samples included in this study TableB2 Summary of macrofossil samples included in this study
LePain, D.L., McCarthy, P.J., and Kirkham, Russell, 2009, Sedimentology, stacking patterns, and depositional systems in the middle Albian-Cenomanian Nanushuk Formation in outcrop, Central North Slope, Alaska: Report of Investigation RI 2009-1, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK USA.Online Links:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.001. Longitudes are given to the nearest 0.001. Latitude and longitude values are specified in Decimal degrees.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.25722210088.
Name of sample
| Value | Definition |
|---|---|
| Name of Alaska Quadrangle | Name of Alaska Quadrangle |
General location
General location
| Range of values | |
|---|---|
| Minimum: | 68.5 |
| Maximum: | 70 |
| Range of values | |
|---|---|
| Minimum: | -155 |
| Maximum: | -148 |
| Value | Definition |
|---|---|
| Name of geological formation | Name of geological formation |
Geologist's description of rock sample
| Value | Definition |
|---|---|
| Type of microfossil analysis | palynomorph foraminifera |
Name of contractor
list of microfossil taxa present in sample
Sample geologic age or range of ages determined by contractor
Sedimentary environment description
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 5 |
Author's comments about sample or analysis
Name of sample
| Value | Definition |
|---|---|
| Name of Alaska Quadrangle | Name of Alaska Quadrangle |
General location
General location
| Range of values | |
|---|---|
| Minimum: | 68.5 |
| Maximum: | 70 |
| Range of values | |
|---|---|
| Minimum: | -155 |
| Maximum: | -148 |
| Value | Definition |
|---|---|
| Name of geological formation | Name of geological formation |
Fossil type, general field description
list of microfossil taxa present in sample
Sample geologic age or range of ages determined by contractor
Sedimentary environment description
Author's comments about sample or analysis
Stratigraphic sections measured in the field
General location
| Range of values | |
|---|---|
| Minimum: | -155 |
| Maximum: | -148 |
| Range of values | |
|---|---|
| Minimum: | 68.5 |
| Maximum: | 70 |
Geologist's description
Author's comments about sample or analysis
The data set was funded by the State of Alaska in conjunction with various North Slope STATEMAP geologic mapping projects, and the DGGS NPRA sponsors program.
This work provides a detailed stratigraphic framework for the Nanushuk Formation.
Mull, C.G., Houseknecht, D.W., and Bird, K.J., 2003, Revised Cretaceous and Tertiary stratigraphic nomenclature in the Colville Basin, Northern Alaska: Professional Paper P 1673.
Data sources used in this process:
Identification accuracy of paleontological samples varies with contract paleontologists. The most appropriate scientist with expertise in rocks of this age for each particular area was chosen.
Location data in latitude/longitude coordinates with a Clark 1866, NAD27 datum are presented. GPS locations are typically accurate within 1-5 meters, while locations hand-digitized from topographic maps may be accurate within 10-20 meters.
This dataset contains all of the samples selected for micropaleontological and macrofossil analyses in the central Brooks Range foothills during the field programs.
No topologic relationships are present in the data.
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| Data format: | CSV |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/19761> |
| Data format: | |
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| Network links: |
<http://dx.doi.org/10.14509/19761> |
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