chu_allsrfgeo_arc surficial geologic unit boundaries (arc) chu_allsrfgeo_polygon surficial geologic units (polygon) chu_eskers_arc vector lines for eskers chu_terrace_arc vector lines for terraces
Pinney, D.S., 2001, Surficial-geologic map of the Chulitna region, southcentral Alaska: Report of Investigation RI 2001-1C, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, Alaska - USA.Online Links:
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.000128
Ordinates (y-coordinates) are specified to the nearest 0.000128
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 1/294.978698.
| Value | Definition |
|---|---|
| 58 | Stream terrace riser, with hatchures pointing downslope |
| Value | Definition |
|---|---|
| 6 | Contact, approximately located |
| Value | Definition |
|---|---|
| b | Undifferentiated bedrock |
| bc | Thinly covered bedrock |
| lake | Lake |
| glacier | Glacier |
| Formal codeset | |
|---|---|
| Codeset Name: | RI2001-1_codeset.pdf |
| Codeset Source: | Alaska Division of Geological & Geophysical Surveys <http://www.dggs.alaska.gov/metadata/RI2001-1_codeset.pdf> |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 393398.2 |
| Units: | meters |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 7021089 |
| Units: | meters |
| Value | Definition |
|---|---|
| b | Undifferentiated bedrock |
| bc | Thinly covered bedrock |
| lake | Lake |
| glacier | Glacier |
| Formal codeset | |
|---|---|
| Codeset Name: | RI2001-1_codeset.pdf |
| Codeset Source: | Alaska Division of Geological & Geophysical Surveys <http://www.dggs.alaska.gov/metadata/RI2001-1_codeset.pdf> |
| Value | Definition |
|---|---|
| S | Surficial deposit |
| B | Bedrock deposit, including exposed and thinly-covered units |
| Value | Definition |
|---|---|
| BX | Undifferentiated bedrock and thinly covered bedrock |
| lake | Lake |
| glacier | Glacier |
| Formal codeset | |
|---|---|
| Codeset Name: | RI2001-1_codeset.pdf |
| Codeset Source: | Alaska Division of Geological & Geophysical Surveys <http://www.dggs.alaska.gov/metadata/RI2001-1_codeset.pdf> |
The Chulitna project is part of DGGS's Airborne Geophysical and Geological Mineral Inventory project (AGGMI), a special multi-year investment by the State of Alaska to produce framework geologic maps that will expand the knowledge base of Alaska's geologic and mineral resources, catalyze future private-sector mineral exploration and development, and guide government agencies' planning projects. The AGGMI project is funded by the Alaska State Legislature and managed by State of Alaska, Department of Natural Resources (DNR), Division of Geological & Geophysical Surveys (DGGS). Partial funding for the Chulitna project was also provided by the U.S. Geological Survey under U.S. Department of the Interior, U.S. Geological Survey, National Cooperative Geological Survey STATEMAP Cooperative Agreement 98HQAG2083. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. government.
(907) 451-5029 (voice)
(907) 451-5050 (FAX)
dggspubs@alaska.gov
The purpose of this project was to produce a 1:63,360-scale geologic map for the airborne geophysical surveys released by DGGS in the Chulitna region during 1996. The geologic data are important for identifying potential mineral deposits and for characterizing and distinguishing between geologic units.
Reger, R.D., and Pinney, D.S., 1996, Late Wisconsin glaciation of the Cook Inlet region with emphasis on Kenai Lowland and implications for early peopling: None None, Cook Inlet Historical Society, Anchorage, Alaska.Online Links:
- None
Davis, N.Y. (ed.), and Davis, W.E. (ed.), 1996, Readings in the anthropology of Cook Inlet, Alaska: None None, Cook Inlet Historical Society, Anchorage, Alaska.
Ten Brink, N.W., 1983, Glaciation of the northern Alaska Range: University of Alaska Museum Occasional Paper No. 2, Alaska Quaternary Center, Fairbanks, Alaska.Online Links:
- None
Thorson, R.M (ed.), and Hamilton, T.D. (ed.), 1983, Glaciation in Alaska: Extended abstracts from a workshop: University of Alaska Museum Occasional Paper No. 2, Alaska Quaternary Center, Fairbanks, Alaska.
Wahrhaftig, Clyde, 1958, Quaternary geology of the Nenana River valley and adjacent parts of the Alaska Range: U.S. Geological Survey Professional Paper PP 293-A, United States Government Printing Office, Washington, D.C..Online Links:
- None
Wahrhaftig, Clyde, and Black, R.F., 1958, Quaternary and engineering geology in the central part of the Alaska Range: U.S. Geological Survey Professional Paper PP 293, United States Government Printing Office, Washington, D.C..
Data sources used in this process:
Gage, B.G., Liss, S.A., and Clautice, K.H., 199810, Preliminary geochemical and major oxide data: Chulitna project, Healy A-6 Quadrangle and nearby areas (1997 and 1998): Public Data File PDF 1998-36, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, Alaska.Online Links:
Blodgett, R.B., and Clautice, K.H., 2000, Fossil locality map for the Healy A-6 Quadrangle, southcentral Alaska: Report of Investigation RI 2000-5, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, Alaska.Online Links:
Clautice, K.H., Newberry, R.J., Blodgett, R.B., Bundtzen, T.K., Gage, B.G., Harris, E.E., Liss, S.A., Miller, M.L., Reifenstuhl, R.R., Clough, J.G., and Pinney, D.S., 2001, Bedrock geologic map of the Chulitna region, southcentral Alaska: Report of Investigation RI 2001-1A, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, Alaska - USA.Online Links:
Clautice, K.H., Newberry, R.J., Pinney, D.S., Blodgett, R.B., Bundtzen, T.K., Gage, B.G., Harris, E.E., Liss, S.A., Miller, M.L., Reifenstuhl, R.R., and Clough, J.G., 2001, Geologic map of the Chulitna region, southcentral Alaska: Report of Investigation RI 2001-1B, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK.Online Links:
Pinney, D.S., 2001, Engineering-geologic map of the Chulitna region, southcentral Alaska: Report of Investigation RI 2001-1D, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK.Online Links:
Burns, L.E., Dighem, and WGM Mining and Geological Consultants, 1997, CD-ROM digital archive files of 1996 survey data for Chulitna and Petersville mining districts, Alaska: Public Data File PDF 97-5, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.Online Links:
Pritchard, R.A., and Dighem, 1997, Project report of the airborne geophysical survey for the Chulitna and Petersville mining districts, Alaska: Public Data File PDF 97-8, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.Online Links:
Burns, L.E., 1997, Portfolio of aeromagnetic and resistivity maps of the Chulitna mining district: Public Data File PDF 97-7, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.Online Links:
Geologic point, line, and polygon data were determined in the field using 1:63,360-scale topographic maps and 1:50,000 (nominal) scale, color-infrared aerial photographs. The surficial-geologic information was transferred from acetate air-photo overlays to a paper 1:63,360-scale USGS topographic base using a zoom transfer scope. The surficial-geologic information was then digitized into Arc/Info GIS (ArcEdit module) using a large-format digitizing table with RMS registration errors constrained to be no larger than 0.003 inches (input coverage units) for each digitizing session. Geologic data included in the compilation are the field maps and notes from this project as well as data from other sources as noted in the "Sources Cited" section.
Location data were determined visually using topographic maps at a scale of 1:63,360 and 1:50,000 (nominal) scale, color-infrared aerial photographs.
This dataset includes geospatial information about geologic units and land forms.
Polygon topology present and clean on appropriate data; others are line or point data.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- This report, map, and/or dataset are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
- Use_Constraints:
- Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.
907-451-5020 (voice)
907-451-5050 (FAX)
dggspubs@alaska.gov
Report of Investigation 2001-1C
The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product.
Current publication is available on paper. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard.
Printed publication can be purchased for $14.00 (contact information below) plus shipping if mailed.
| Data format: | PDF (version 1.6) |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/3313> |
| Data format: | ArcGIS Shapefile (version ESRI ArcGIS 9.x) |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/3313> |
| Media you can order: |
CD-ROM
(format Joliet)
|
Digital files on CD-ROM are available for $10.00 (contact information below). No fees charged for downloaded files.
Order by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). The DGGS web site (<http://www.dggs.alaska.gov/>) has a list of electronic data available and an order form that can be printed. Payment accepted: Cash, check, money order, VISA, or MasterCard.
Digital downloads: less than 30 minutes for most files. Offline CD/DVD-ROMs: 1-2 weeks unless special arrangements are made and an express fee is paid.
Please check the MapInfo web site (<http://www.mapinfo.com/>) for the latest documentation on importing ESRI shape files.
907-451-5039 (voice)
907-451-5050 (FAX)
dggspubs@alaska.gov