HeatFlow_points geothermal gradient test hole Hotsprings_points hotsprings ThermalH2O_poly potential exploration area for geothermal resources VolcanicRocks Quaternary or Quaternary-Tertiary volcanic rocks VolcanicVents_points volcanic vents
Motyka, R.J., Moorman, M.A., and Liss, S.A., 1983, Geothermal Resources of Alaska: Miscellaneous Publication MP 8, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, Alaska - USA.Online Links:
The map projection used is Albers Conical Equal Area.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.008192
Ordinates (y-coordinates) are specified to the nearest 0.008192
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.
| Range of values | |
|---|---|
| Minimum: | 51.53 |
| Maximum: | 71.19 |
| Units: | degrees |
| Range of values | |
|---|---|
| Minimum: | -179.02 |
| Maximum: | -132.34 |
| Units: | degrees |
| Range of values | |
|---|---|
| Minimum: | 50 |
| Maximum: | 100 |
| Units: | milliwatts/meter^2 |
| Value | Definition |
|---|---|
| 6 | Marker. |
XX-YY; XX=AA (Aleutian Islands and Alaska Peninsula), SC (south-central Alaska), NC (north-central Alaska), SE (southeast Alaska), YY=unique sample identifier.
Unique name for each thermal spring/well.
| Range of values | |
|---|---|
| Minimum: | 53.89 |
| Maximum: | 69.63 |
| Units: | degrees |
| Range of values | |
|---|---|
| Minimum: | -179.63 |
| Maximum: | -131.27 |
| Units: | degrees |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 470 |
| Units: | degrees Celsius |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 470 |
| Units: | degrees Celsius |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 9.6 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 42500 |
| Units: | milligrams/Liter |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 7600 |
| Units: | Liters/minute |
Please see chart on printed publication for surface manifestation. Surface manifestation includes fumaroles, springs, geysers, mudpots, wells, seeps, and vents.
| Value | Definition |
|---|---|
| 1 | Thermal springs: Surface temperature unknown. |
| 2 | Thermal springs: Surface temperature 50 degrees C or lower |
| 3 | Thermal springs: Surface temperature higher than 50 degrees C |
| 4 | Thermal wells: Surface temperature 50 degrees C or lower |
| 5 | Thermal wells: Surface temperature higher than 50 degrees C |
| 6 | Heat flow: Geothermal gradient test hole (range of heat flow values in milliwatts/square meter shown for individual wells). |
Text box on printed map with auxiliary notes on particular locations.
Funding for this project was jointly supplied by the U.S. Department of Energy and the State of Alaska. Additional Acknowledgments: John W. Reeder of DGGS supplied information. Map produced by Ronald H. Smith, Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado/NOAA, and Joy Ikelman, NGDC/NOAA, Boulder, Colorado, in cooperation with the Earth Science Laboratory/University of Utah Research Institute, Salt Lake City, Utah. Digital thermal well and spring data available from GEOTHERM Project, U.S. Geological Survey, 345 Middlefield Road, MS84, Menlo Park, California 94025.
(907) 451-5029 (voice)
(907) 451-5050 (FAX)
dggspubs@alaska.gov
Only a few geothermal areas in Alaska have thus far received any detailed investigation and, except for reconnaissance studies, most of the state's geothermal resources remain virtually unexplored. There has been a growing awareness, however, that geothermal resources can play a significant role in meeting the states energy needs, particularly in rural areas. The primary purpose of this map, therefore, is to aid potential users in development of geothermal resources in a manner beneficial for Alaska.
Miller, T.P., 1973, Distribution and chemical analyses of thermal springs in Alaska: Open-File Report 73-187, U.S. Geological Survey, Denver, Colorado.Online Links:
Markle, D., 1979, Geothermal energy in Alaska, site data base and development status: OIT Geo-Heat Utilization Center, Klamath Falls, OR.Online Links:
(ed.), George Plafker , and (ed.), H.C. Berg , 1994, The Geology of Alaska: The Geology of North America v. G1, Geological Society of America, Boulder, Colorado.
Lawver, L.A., Lachenbruch, A.H., and Moses, T.H., Jr., 1979, Status of regional heat-flow studies:.
Johnson, K.M. (ed.), and Williams, J.R. (ed.), 1979, The United States Geological Survey in Alaska; accomplishments during 1978: U.S. Geological Survey Circular 804-B, U.S. Geological Survey, Denver, Colorado.Online Links:
Skougstad, M.W. (ed.), Fishman, M.J. (ed.), Friedman, L.C. (ed.), Erdmann, D.E. (ed.), and Duncan, S.S. (ed.), 1979, Methods for determination of inorganic substances in water and fluvial sediments: U.S. Geological Survey Techniques of Water Resources Investigations Book 5, U.S. Geological Survey, Denver, Colorado.
Motyka, R.J., Moorman, M.A., and Reeder, J.W., 1980, Assessment of thermal spring sites in southern southeastern Alaska - Preliminary results and evaluation: Alaska Open-File Report AOF 127, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska.Online Links:
Presser, T. S., and Barnes, I., 1974, Special techniques for determining the chemical properties of geothermal waters: U.S. Geological Survey Water-Resources Investigations 22-74, U.S. Geological Survey, Denver, Colorado.
Data sources used in this process:
Data sources used in this process:
Data sources used in this process:
Precisions are listed in Table 1 of Motyka et al., 1980 quoted from Skougstad and other, (eds.) 1979.
Location data were determined visually using topographic maps at a scale of 1:63,360 and 1:50,000 (nominal) scale, and color-infrared aerial photographs.
This dataset includes coverages that contain information about volcanic vents, geothermal gradient test holes, hotsprings, potential exploration areas for geothermal resources, and Quaternary or Quaternary-Tertiary volcanic rocks. This work includes reconnaissance of site geology and hydrology, investigation of thermal spring and fumarole characteristics including temperatures and flow rates, and geochemical sampling of thermal fluids. This map is based largely on information gathered from these reconnaissance studies plus additional information obtained from more detailed studies recently conducted at several of the more promising geothermal areas.
Polygon topology is present on appropriate coverages; others are line or point coverages.
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.
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Miscellaneous Publication 8
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 $5.00 (contact information below) plus shipping if mailed.
| Data format: | PDF (version 1.6) |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/671> |
| Data format: | ArcGIS Shapefile (version ESRI ArcGIS 9.x) |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/671> |
| Media you can order: |
CD-ROM
(format Joliet)
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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.
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