ContactsAndFaults: Line features that depict faults and geologic contacts. GeochronPoints: Geochronology sample location points. MapUnitPolys: Polygons that record the distribution of mapped or interpreted geologic units. Stations: A point file that provides location information, observations, and other data specific to each field observation station.
DeRaps, M.R., Kinsman, N.E.M., Stevens, D.S.P., and Overbeck, J.R., 2017, Surficial geologic map of the Shaktoolik area, Norton Bay Quadrangle, Alaska: Report of Investigation RI 2017-5, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
This is a vector data set.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest .00000001
Ordinates (y-coordinates) are specified to the nearest .00000001
Planar coordinates are specified in Meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is GRS 80.
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.257222101000025.
Feature type(s): map boundary; contact; waterline
| Value | Definition |
|---|---|
| N | The feature IS NOT covered by an overlying map unit. |
| Value | Definition |
|---|---|
| certain | Indicates that the author has sufficient observational and/or other supporting data to be reasonably confident in the scientific credibility of the interpretation of the feature. The level of certainty is specific to the map scale. |
| Value | Definition |
|---|---|
| certain | Indicates that the author has sufficient observational and/or other supporting data to be reasonably confident in the scientific credibility of the interpretation of the feature. The level of certainty is specific to the map scale. |
| Range of values | |
|---|---|
| Minimum: | 12 |
| Maximum: | 52 |
| Units: | meters |
| Formal codeset | |
|---|---|
| Codeset Name: | FGDC Digital Cartographic Standard for Geologic Map Symbolization; Appendix A. Geologic map symbols, colors, and patterns, "REF NO" field |
| Codeset Source: | Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates. |
The notes indicate the source of the feature interpretation or provide more information about the feature.
Feature type(s): radiocarbon
| Value | Definition |
|---|---|
| Qbry | Young beach ridge complex |
| Qme | Estuarine deposits |
| Qus | Upland silt |
| Formal codeset | |
|---|---|
| Codeset Name: | FGDC Digital Cartographic Standard for Geologic Map Symbolization; Appendix A. Geologic map symbols, colors, and patterns, "REF NO" field |
| Codeset Source: | Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates. |
| Formal codeset | |
|---|---|
| Codeset Name: | FGDCGeoAge font |
| Codeset Source: | Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates. |
| Value | Definition |
|---|---|
| NULL | A sample number was not recorded or was not assigned. |
Generic example of a DGGS sample identifier: YYYYAAA9999XXXX; YY or YYYY= year, AAA=geologist's initials (one to three characters), 9999=unique station number, XXXX= optional alpha characters which indicate that multiple samples were collected at a given location or that multiple observations with possibly identical prefixes were recorded in the project database. Field stations observed by non-DGGS personnel use identifiers from the originating reference.
| Value | Definition |
|---|---|
| NULL | An alternate sample number was not recorded or was not assigned. |
Alternate sample identifiers follow a numbering system that differers from the DGGS standard sample numbering format.
Material type(s): Unspecified Marine Carbonate; Sediment Organic Carbon; Plant/Wood
| Range of values | |
|---|---|
| Minimum: | 50000 |
| Maximum: | 50000 |
| Range of values | |
|---|---|
| Minimum: | 10 |
| Maximum: | 10 |
| Units: | meters |
| Range of values | |
|---|---|
| Minimum: | 100 |
| Maximum: | 9610 |
| Range of values | |
|---|---|
| Minimum: | 125 |
| Maximum: | 9655 |
| Range of values | |
|---|---|
| Minimum: | 75 |
| Maximum: | 9565 |
Units(s): radiocarbon years
The notes indicate the source of the feature interpretation or provide more information about the feature.
| Value | Definition |
|---|---|
| Kcg | Carbonate-clast gray wacke and mudstone (cretaceous ), submarine fan deposit |
| Kvc | Volcanic-clast conglomerate, sandstone, and shale (cretaceous ), marginal shelf and slope deposits |
| MzPrc | Complex of Reindeer Hills (Mesozoic to Proterozoic?) |
| Qac | Colluvial and alluvial valley fill deposits |
| Qaf | Alluvial fan deposits |
| Qal | Alluvium in active channels |
| Qas | Silty alluvium |
| Qat1 | Older terrace deposits |
| Qat2 | Younger terrace deposits |
| Qbr | Older beach ridge complex, undifferentiated |
| Qbry | Young beach ridge complex |
| Qc | Colluvium |
| Qfp1 | Old floodplain deposits |
| Qfp2 | Floodplain deposits of intermediate age |
| Qfp3 | Young floodplain deposits |
| Qmb | Modern beach deposits |
| Qme | Estuarine deposits |
| Qsi | Lowland silt |
| Qsii | Lowland silt, intermittently inundated |
| Qtl | Thaw lake deposits |
| Qtlm | Multi-generation thaw lake deposits |
| Qus | Upland silt |
| Value | Definition |
|---|---|
| certain | Indicates that the author has sufficient observational and/or other supporting data to be reasonably confident in the scientific credibility of the interpretation of the feature. The level of certainty is specific to the map scale. |
| Formal codeset | |
|---|---|
| Codeset Name: | FGDCGeoAge font |
| Codeset Source: | Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates. |
| Value | Definition |
|---|---|
| 2350 | CMYK value - C:20%, M:30%, Y:50%, K:0% |
| 3240 | CMYK value - C:30%, M:20%, Y:40%, K:0% |
| 4230 | CMYK value - C:40%, M:20%, Y:30%, K:0% |
| 1340 | CMYK value - C:13%, M:30%, Y:40%, K:0% |
| 00X0 | CMYK value - C:0%, M:0%, Y:100%, K:0% |
| 0030 | CMYK value - C:0%, M:0%, Y:30%, K:0% |
| 0040 | CMYK value - C:0%, M:0%, Y:40%, K:0% |
| 0A30 | CMYK value - C:0%, M:8%, Y:30%, K:0% |
| 3660 | CMYK value - C:30%, M:60%, Y:60%, K:0% |
| 1240 | CMYK value - C:13%, M:20%, Y:40%, K:0% |
| 1350 | CMYK value - C:13%, M:30%, Y:50%, K:0% |
| 3440 | CMYK value - C:30%, M:40%, Y:40%, K:0% |
| 0020 | CMYK value - C:0%, M:0%, Y:20%, K:0% |
| 0150 | CMYK value - C:0%, M:13%, Y:50%, K:0% |
| 0050 | CMYK value - C:0%, M:0%, Y:50%, K:0% |
| 0350 | CMYK value - C:0%, M:30%, Y:50%, K:0% |
| 0A70 | CMYK value - C:0%, M:8%, Y:70%, K:0% |
| 0560 | CMYK value - C:0%, M:50%, Y:60%, K:0% |
| 3540 | CMYK value - C:30%, M:50%, Y:40%, K:0% |
| Value | Definition |
|---|---|
| NULL | A station number was not recorded or was not assigned. |
This field mapping program used a station numbering convention that differers from the DGGS standard station numbering format.
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 10 |
| Units: | meters |
Location method(s): Recreational GPS; Survey-grade GPS
| Range of values | |
|---|---|
| Minimum: | 2011-07-18 |
| Maximum: | 2011-07-29 |
This map is funded with qualified outer continental shelf oil and gas revenues by the Coastal Impact Assistance Program, U.S. Fish & Wildlife Service, U.S. Department of the Interior. The views and conclusions contained in this document are those of the authors and should not be interpreted to represent the opinions or policies of the U.S. Government. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Government. The authors would like to extend their gratitude to Shaktoolik Native Corporation and Bering Straits Native Corporation for land access permission to conduct this work. Generous hospitality, field advice, and logistical support were provided by Myron Saveitilik, Calvin Paniptchuk, Eugene Asicksik, Fred Sagoonick, Kawerak Incorporated, and the Bering Straits School District. Karin Ohman (U.S. Geological Survey, formerly of the University of California, Santa Cruz) and Harvey Smith (Alaska Department of Transportation & Public Facilities) provided assistance in the field. The mineralogy expertise of Larry Freeman (DGGS) contributed to improvements in the bedrock mapping, and radiocarbon ages were converted to calibrated calendar years with the assistance of Owen Mason (Geoarch Alaska). Review comments by Owen Mason (GeoArch Alaska) and Trent Hubbard (DGGS) improved and clarified the content of this report.
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According to the 2010 United States census, more than 60 percent of Alaskans reside in coastal communities. Many of these communities are exposed to a wide range of geologic hazards including erosion, landslides, wave attack, storm surge/flooding, tsunami and ivu (ice push). Since 2004, reports and recommendations from the U.S. General Accounting Office, the U.S. Army Corps of Engineers, and the Immediate Action Work Group of the Governor's Subcabinet on Climate Change have highlighted the imperiled or at-risk status of many Alaskan villages that are subject to severe flooding and erosion. In response to both existing risks and to shifts in the frequency and/or magnitude of geohazard- triggering events, including those that may be influenced by changing climate, communities throughout the state are becoming increasingly involved with mitigation or adaptation efforts in response to these natural hazards. Baseline data pertaining to local geology, coastal and oceanic processes, and historic natural hazard events are necessary to facilitate adaptation efforts.
Patton, W.W., Jr., Wilson, F.H., Labay, K.A., and Shew, Nora, 2009, Geologic map of the Yukon-Koyukuk basin, Alaska: Scientific Investigations Map SIM 2909, U.S. Geological Survey, United States.Online Links:
Data sources used in this process:
Certainty in attribute interpretation varies throughout the map. Attribute fields within each table record the author's degree of confidence in the existence or identity of applicable features. This publication is a final report of research and has received two technical reviews as well as technical editing.
Certainty in feature boundaries or location varies throughout the map. Data fields within each table record the author's degree of confidence in the location of applicable features.
This DGGS Report of Investigations is a final report of scientific research. It has received technical review and may be cited as an agency publication.
Polygon topology is present and clean on the original geospatial dataset. All polygon features were topologically validated using ArcGIS prior to export to shapefile format.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- This report, map, and/or dataset is 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. The 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. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data 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 or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
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RI 2017-5
The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data 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 or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. 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. Turnaround time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping amount.
| Data format: | shapefiles and geodatabase |
|---|---|
| Network links: |
<http://doi.org/10.14509/29723> |
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