USGS Geoscience Data Catalog
Additional USGS Geoscience data can be found by geographic location or by publication series.
Green, Gregory N. , Bradley S. Van Gosen, Wilson, Anna B. , and Silkwood, Jeffery T. , 1999, Geologic map datasets of the Custer and Gallatin National Forests of South-central Montana, in ARC/INFO format: Absaroka-Beartooth study area: U.S. Geological Survey Open-File Report OFR 99-450, U.S. Geological Survey, Denver, Colorado.Online Links:
This is a vector data set.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 1
Ordinates (y-coordinates) are specified to the nearest 1
Planar coordinates are specified in Meters
The horizontal datum used is North American Datum of 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 1/294.98.
| Value | Definition |
|---|---|
| Qs | Surfical deposits (Quaternary) |
| Qt | Travertine (Quaternary) |
| Qy | Lava Creek Tuff of Yellowstone Group (Pleistocene) |
| Qb | Basalt (Pleistocene) |
| Tv | Absaroka Volcanic Supergroup (Eocene) |
| Tf | Fort Union Formation (Paleocene and Late Cretaceous) |
| Kal | Andesite (Late Cretaceous |
| Kll | Lahards of Livingston Group (Late Cretaceous) |
| Klc | Sedimentary rocks of Livingston Group (Late Cretaceous) |
| Kad | Andesite (Late Cretaceous) |
| Kus | Sedimentary rocks (Late Cretaceous) |
| Kls | Sedimentary rocks (Early Cretaceous) |
| Ku | Sedimentary rocks (Early and Late Cretaceous) |
| JTRs | Sedimentary rocks (Jurassic and Triassic) |
| PMs | Sedimentary rocks (Permian, Pensylvanian, and Mississippian) |
| DOs | Sedimentary rocks (Devonian and Ordovician) |
| OCs | Sedimentary rocks (Ordovician and Cambrian) |
| Cs | Sedimentary rocks (Cambrian) |
| Pz | Undifferentiated sedimentary rocks (Paleozoic) |
| Ti | Intermediate and felsic rocks (Eocene) |
| Tlp | Rhyolite porphyry of Lulu Pass (Eocene) |
| Tbh | Breccian of Homestake mine area (Eocene) |
| Tba | Breccian of Alice E mine area (Eocene) |
| Thm | Rhyolite Porphyry of Henderson Mountain (Eocene) |
| Th | Rhyolite Porphyry of Homestake mine area (Eocene) |
| Tfm | Complex of Fisher Mountain area (Eocene) |
| Tsb | Diorite of Scotch Bonnet Mountain (Eocene) |
| Ta | Andesite and trachyandesite porphyry (Eocene) |
| Tgr | Granodiorite porphyry of Emigrant area (Eocene) |
| Tdp | Dacite porphyry (Eocene) |
| Tdi | Diorite porphyry and basaltic andesite (Eocene) |
| Tmz | Monzodiorite of Independence area (Eocene) |
| TKi | Intermediate and felsic intrusiverokcs (Tertiary or Late Cretaceous) |
| Ka | Andesite (Late Cretaceous) |
| Kd | Diorite and Sliderock Mountain (Late Cretaceous) |
| Ki | Rhyolite and quartz latite porphyry (Late Cretaceous) |
| Kgl | Syenite of Gose Lake (Late Cretaceous) |
| d | Intermediate and mafic intrusive rokcs (Eocene and Precambrian) |
| mi | Mafic intrusive rokcs (Archean and Proterozoic) |
| Ahd | Hornblende quartz diorite (Archean) |
| Agr | Granitic intrusive rocks (Archean) |
| Asw7 | Stillwater Igneous Complex (Archean) Upper mixed, upper gabbro, and upper anorthosite zones. |
| Asw6 | Stillwater Igneous Complex (Archean) Middle anorthosite zone. |
| Asw5 | Stillwater Igneous Complex (Archean) Lower mixed, middle gabbro, and middle mixed zones. |
| Asw4 | Stillwater Igneous Complex (Archean) Lower anorthosite zone. |
| Asw3 | Stillwater Igneous Complex (Archean) Norite and lower gabbro zones. |
| Asw2 | Stillwater Igneous Complex (Archean) Bronzitite zone |
| Asw1 | Stillwater Igneous Complex (Archean) Peridotite zone |
| An | Metanorite and metagabbro (Archean) |
| Agn | Granitic gneiss (Archean) |
| Au | Ultramafic rocks (Archean) |
| As | Biotite schist (Archean) |
| Aag | Amphibolite and hornblende gneiss (Archean) |
| Aga | Amphibolite and gneiss (Archean) |
| Anc | Nappe core complex (Archean) |
| Aqa | Quartzite and amphibolite (Archean) |
| Ash | Schist and hornfels (Archean) |
| Arn | Undifferentiated metamorphic rocks (Archean) |
| Range of values | |
|---|---|
| Minimum: | 6 |
| Maximum: | 390 |
| Value | Definition |
|---|---|
| contact | known contact between units |
| detachment | detachment fault |
| Fault | fault, certain |
| Fault? | fault, uncertain |
| MI | (unknown) |
| thrust | thrust fault, certain |
| TI | (unknown) |
| Xfault | inferred thrust fault |
ABSAROKA.AML: ARCPLOT command that creates the geologic map of USGS
Open-File Report 93-207, plate 1.
ABSAROKA.E00: ARC/INFO interchange file that can be used to create
the database for plate 1 of USGS Open-File Report 93-207
ABSAROKA.MET: Metadata file
ABSAROKA.PDF: "Portable Document Format" file that can be viewed
with the free software Adobe Acrobat Reader (must use version 4.0 or
higher of Acrobat Reader due to the large size of the map).
ABSAROKA.RTL: A Hewlett Packard graphics plot file ("Raster
Transfer Language") format
COMMENTS.TXT: Comments by Jeffrey T. Silkwood regarding this
database in his letter accompanying transfer of the data to the USGS
DIKES.E00: ARC/INFO interchange file that can be used to create the
dikes shown on the geologic map of USGS Open-File Report 93-207,
plate 1
FAULTS.E00: ARC/INFO interchange file that can be used to create
the faults shown on the geologic map of USGS Open-File Report
93-207, plate 1
FNT003.E00: ARC/INFO interchange file that can be used to create
the fonts labeling the map units on the geologic map of USGS
Open-File Report 93-207, plate 1
GEOL.KEY: Text file providing a description of the map units
GEOL_SYM.E00: ARC/INFO interchange file that can be used to create
the map symbols shown on the geologic map of USGS Open-File Report
93-207, plate 1 (supplied by Jeffrey T. Silkwood)
LOAD.AML: ARCPLOT command that recreates the database structure of
this directory
MAPBAR.AML: ARCPLOT command that creates the map-scale bar
PROJECT.TXT: Text file describing the projection applied to this
database
\SDTS: ABSAROKA.EOO in SDTS (Spatial Data Transfer Standard)
Gregory N. Green, Anna B. Wilson, and Bradley S. Van Gosen of the U.S. Geological Survey and Jeffrey T. Silkwood of the USDA Forest Service
(303) 236-1566 (voice)
bvangose@usgs.gov
This dataset was developed to provide a geologic map GIS database of the Custer and Gallatin National Forests in the Absaroka-Beartooth study area for use in spatial analysis by a variety of users.
Hammarstrom, J.M., Zientek, M.L., and Elliott, J.E, 1993, Mineral resource assessment of the Absaroka-Beartooth study area, Custer and Gallatin National Forests, Montana.: U.S. Geological Survey Open-File Report 93-207, U.S. Geological Survey, Denver, Colorado.
finished
manual check against orginals
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints:
- This database is not meant to be used or displayed at any scale other than 1:126,720.
(303) 236-1566 (voice)
bvangose@usgs.gov
USGS Open-File Report 99-450
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standard nor with the North American stratigraphic codes. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the USGS. Although these data have been used by the USGS and have been successfully imported into data base programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any specific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. This data base GIS is not meant to be used or displayed at any scale other than 1:126,720.
| Data format: | Geologic map of the Absaroka-Beartooth study area, Montana in format ARC/INFO export (version 7.1.2) Size: 77 Mbyte |
|---|---|
| Network links: |
<http://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-99-0450> |
(303) 236-1566 (voice)
bvangose@usgs.gov
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://geo-nsdi.er.usgs.gov/metadata/open-file/99-450/absaroka.faq.html
Page Contact Information: Peter Schweitzer
Page Last Modified: Monday, 10-Nov-2008 12:20:12 EST