USGS Geoscience Data Catalog
Additional USGS Geoscience data can be found by geographic location or by publication series.
Troutman, Sandra M. , and Stanley, Richard G. , 2004, Maps showing sedimentary basins, surface thermal maturity, and indications of petroleum in the central Alaska province: Sedimentary basins: U.S. Geological Survey Miscellaneous Field Studies Map MF-2428, U.S. Geological Survey, Menlo Park, California.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
The map projection used is Albers Conical Equal Area.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.004096
Ordinates (y-coordinates) are specified to the nearest 0.004096
Planar coordinates are specified in meters
The horizontal datum used is North American Datum 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378206.4.
The flattening of the ellipsoid used is 1/294.978698.
| Value | Definition |
|---|---|
| (no value) | age information is not present or not well defined in original published data |
| Late Tertiary and Quaternary | rocks are Late Tertiary and Quaternary in age |
| Lower Tertiary | rocks are Lower Tertiary in age |
| Mesozoic | rocks are Mesozoic in age |
| Paleozoic-Mesozoic | rocks are Paleozoic-Mesozoic in age |
| Value | Definition |
|---|---|
| basement | metamorphic and igneous terranes of all ages |
| flysch 1 | fold belts of the Colville foredeep, Eagle basin, Alaska Peninsula, Cook Inlet and Copper River basins |
| flysch 2 | Complexly deformed and locally metamorphosed flysch basins of interior Alaska |
| flysch 3 | Pervasively deformed and metamorphosed flysch belts |
| fold and thrust belt | Terrane includes the Cordilleran Fold and Thrust belt, Hearld arch, Lisburn Hills, Northern Brooks Range, Romanzof Mountains and Kandik (hinterland) segment in Alaska. Davidson Mountains, Eagle basin, Richardson Mountains, and Northern Ogilvie Mountains in Yukon Territory, Canada. |
| gas field | producing gas field |
| oil field | producing oil field |
| older sedimentary | Older sedimentary basins, Lower Tertiary in age, are present as remnants of older basins. These rocks are moderately to strongly deformed and locally metamorphosed. |
| sedimentary basin | Late Tertiary and Quaternary basin fill |
| volcanic rock cover | Upper Mesozoic to Cenozoic volcanic rock cover |
| water | polygon created in digitizing process that contain no lithology, but only water. |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 14 |
| Units: | kilometers |
| Value | Definition |
|---|---|
| (no value) | no gravity anomaly data available |
| low | Bouguer gravity low measured in milligals. Interpreted to represent Cenozoic basin fill in 1 to 3 km range. |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 50 |
| Units: | milligals |
| Value | Definition |
|---|---|
| (no value) | bedrock covered by surficial material |
| outcrop | rocks are present at the surface |
650-329-4918 (voice)
650-329-4975 (FAX)
rstanley@usgs.gov
This database depicts the distribution of rock types, lithologic contacts, and gravity anomalies in the state of Alaska as shown on C. E. Kirschner's Map showing sedimentary basins of onshore and continental shelf areas, Alaska (1988). Boundaries of polygons are not assigned attributes and are only indicators of the extent of rock distribution. This coverage is intended to serve as a base map and add geologic context to reported indications of petroleum in the Central Alaska province, as discussed in the accompanying report. The regional (1:2,500,000) scale of this coverage does not provide sufficient detail for site development purposes.
Kirschner, Charles E. , 1988, Map showing sedimentary basins of onshore and continental shelf areas, Alaska.: U.S. Geological Survey Miscellaneous Investigations Series Map I-1873.
Person who carried out this activity:
650-329-4974 (voice)
650-329-4975 (FAX)
stroutman@usgs.gov
All attribute data are taken from Kirschner's previously published Map showing sedimentary basins of onshore and continental shelf areas, Alaska, USGS Miscellaneous Investigations Series (I-1873), 1988.
This coverage includes all polygons from C. Kirschner's map titled Map showing sedimentary basins of onshore and continental shelf areas, Alaska, USGS Miscellaneous Investigations Series (I- 1873), 1988, excluding glaciers and bathymetric data.
Polygon and chain-node topology present
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints:
- Uses of this digital coverage should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited for a scale of 1:2,500,000 means that higher resolution information is not present in the dataset. Plotting at scales larger than 1:2,500,000 will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database
1-888-ASK-USGS (voice)
303-202-4693 (FAX)
ask@usgs.gov
USGS Miscellaneous Field Studies Map MF-2428
The U.S. Geological Survey (USGS) provides these geographic data "as is." The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied, as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by USGS. This digital database of historic indication of petroleum in the central Alaska province is 1:2,500,000 map-scale and any derivative maps thereof, is not meant to be used or displayed at any scale larger than 1:2,500,000.
| Data format: | Sedimentary basins in format ArcInfo export (version 8.x) Size: 3.5 megabytes |
|---|---|
| Network links: |
<http://pubs.usgs.gov/mf/2003/2428/digital_files/seds_basins.e00> |
703-648-6533 (voice)
703-648-6252 (FAX)
pschweitzer@usgs.gov
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://geo-nsdi.er.usgs.gov/metadata/map-mf/2428/seds_basins.faq.html
Page Contact Information: Peter Schweitzer
Page Last Modified: Tuesday, 03-Nov-2009 15:22:33 EST
