National Assessment of Oil and Gas Project, Northern Alaska Province (001). Petroleum Systems and Geologic Assessment of Gas Hydrates in Northern Alaska 2008. Limits of the Gas Hydrate stability zone contour lines

The limits of Gas Hydrate (GH) stability zone contour lines (GH stability thickness zero) shown here is a geographic boundary defined and mapped on basis of U.S. Geological Survey Digital Data Series DDS-35 Gas Hydrate assessment contours that were created in Support of the 1995 National Assessment of United States Oil and Gas Resources. The 1995 CD-ROM released digital map data, figures, and text used in the "1995 National Assessment of United States Oil and Gas Resources -- Results, Methodology, and Supporting Data," U.S. Geological Survey Digital Data DDS-30 (Gautier and others, 1995). The 1995 Assessment Gas Hydrate thickness boundaries were revised and updated according to recent methane hydrate stability zone studies done in [...]