This service uses two geologic base maps; the 1:500,000-scale geologic map of Kentucky at scales smaller than 1:100,000, and 1:24,000-scale geological quadrangle data at larger scales. The 1:500,000-scale geologic map data were derived from the 1988 Geologic Map of Kentucky, which was compiled by Martin C. Noger (KGS) from the 1981 Geologic Map of Kentucky (Scale 1:250,000) by McDowell and others (USGS). The 1:24,000-scale geologic map data and the fault data were compiled from 707 Geological Survey 7.5-minute geologic quadrangle maps, which were digitized during the Kentucky Geological Survey Digital Mapping Program (1996-2006).

Seabed geology of the sub-Quaternary compiled for the WP 4 of the EMODnet project (lithology, chronostratigraphy). The geology covers the greater North Sea, Baltic Sea, Celtic Sea and parts of the North Atlantic Ocean.

Garrity, C.P., and Soller, D.R., in review, Geologic database of the Geologic Map of North America (v.1.0), adapted from Reed et al. (2005): U.S. Geological Survey Data Product, to be available on CDROM and WWW. [Source map is: Reed, J.C., Wheeler, J.O., and Tucholke, B.E., 2005, Geologic Map of North America, South Sheet, Geological Society of America Continent-Scale Map 001, scale 1:5000000, available at http://www.geosociety.org/bookstore/default.asp?oID=0&catID=12&pID=CSM001F]. Information on digital conversion of this map will, by late August, become available in technical paper by Garrity and Soller, at http://ngmdb.usgs.gov/Info/dmt/DMT07presentations.html. Preparation for OneGeology WMS by S.M. Richard (Arizona Geological Survey and U.S. Geological Survey), C.P. Garrity (USGS), D.C. Percy (Portland State University and U.S. Geological Survey), and D.R. Soller (USGS).

The Geological Map of Greenland at scale 1:2.500.000 provides a comprehensive regional synthesis of the geological evolution of Greenland from the earliest Archaean to the Quaternary. The map presents an integrated overview of Greenland’s geological framework, including Precambrian crystalline basement provinces, major orogenic belts, Phanerozoic sedimentary basins and widespread volcanic provinces. Greenland is characterised by large exposures of continental crust dominated by Archaean and early Proterozoic shield rocks that stabilised as part of the Laurentian shield. Younger geological elements are mainly developed along the margins of the shield, where sedimentation, deformation and magmatic activity reflect successive tectonic regimes through time. The map illustrates the distribution and relationships of these geological units and highlights the structural and stratigraphic architecture of Greenland and adjacent offshore areas. The map integrates onshore and offshore geological information and serves as a regional reference for geological interpretation, research, education and resource-related studies in Greenland.