Geological Map Of Alaska

The southern portions of the state and south sides of the aleutian islands drain into the gulf of alaska.

Geological map of alaska. Detailed description a new digital geologic map of alaska released january 5th provides land users managers and scientists geologic information for the evaluation of land use in relation to resource extraction conservation natural hazards and recreation. The geology of alaska includes precambrian igneous and metamorphic rocks formed in offshore terranes and added to the western margin of north america from the paleozoic through modern times. New elevation data acquired prior to. Geological survey usgs program to support and improve maps and digital map data for alaska bringing alaska topographic map and digital map data quality in line with the conterminous united states.

These updated and enhanced maps display the landscape in much greater detail than the earlier maps. The region was submerged for much of the paleozoic and mesozoic and formed extensive oil and gas reserves due to tectonic activity in the arctic ocean. The alaska mapping initiative is a u s. Covering the entire state of alaska it reflects more than a century of work by a host of geologists and almost two decades of compilation work.

This map shows the major streams and rivers of alaska and some of the larger lakes. Orthographic projections of the unified geologic map of the moon showing the geology of the moon s near side left and far side right with shaded topography from the lunar orbiter laser altimeter lola. Geological survey released the first ever digital geologic map of alaska. Most of alaska drains into the bering sea through the noatak kebuk yukon and kuskokwim rivers.

In january 2016 the u s. The goal of the alaska mapping initiative ami is to acquire and enhance foundational digital map layers such as elevation surface water and boundaries that will be used to produce new us topo maps for alaska. Geologic map index of alaska map index provides outlines of dggs and usgs geology related maps of alaska. There are two versions of the map.

The northernmost part of alaska drains into the arctic ocean. A detailed digital version and a simplified generalized map for print. These new digital us topo maps replace decades old 1 63 360 scale usgs maps. Alaska was largely ice free during the pleistocene allowing humans to migrate into the americas.