Christopher P Garrity
Christopher Garrity is a Supervisory Cartographer with the USGS Geology, Energy, & Minerals (GEM) Science Center in Reston, VA.
Science and Products
Geologic map of the Point Lay quadrangle, Alaska
This map is a product of the USGS Digital Geologic Maps of Northern Alaska project, which captures in digital format quadrangles across the entire width of northern Alaska. Sources include geologic maps previously published in hardcopy format and recent updates and revisions based on field mapping by the Alaska Department of Natural Resources,...
Mull, Charles G.; Houseknecht, David W.; Pessel, G.H.; Garrity, Christopher P. Color shaded-relief and surface-classification maps of the Fish Creek Area, Harrison Bay Quadrangle, Northern Alaska
The northeastern part of the National Petroleum Reserve in Alaska (NPRA) has become an area of active petroleum exploration during the past five years. Recent leasing and exploration drilling in the NPRA requires the U.S. Bureau of Land Management (BLM) to manage and monitor a variety of surface activities that include seismic surveying,...
Mars, John L.; Garrity, Christopher P.; Houseknecht, David W.; Amoroso, Lee; Meares, Donald C. Geologic map of the Utukok River quadrangle, Alaska
This map is a product of the USGS Digital Geologic Maps of Northern Alaska project, which captures in digital format quadrangles across the entire width of northern Alaska. Sources include geologic maps previously published in hardcopy format and recent updates and revisions based on field mapping by the Alaska Department of Natural Resources,...
Mull, Charles G.; Houseknecht, David W.; Pessel, G.H.; Garrity, Christopher P. Digital geologic map and GIS database of Venezuela
The digital geologic map and GIS database of Venezuela captures GIS compatible geologic and hydrologic data from the 'Geologic Shaded Relief Map of Venezuela,' which was released online as U.S. Geological Survey Open-File Report 2005-1038. Digital datasets and corresponding metadata files are stored in ESRI geodatabase format; accessible via...
Garrity, Christopher P.; Hackley, Paul C.; Urbani, Franco Geologic map of the Lookout Ridge quadrangle, Alaska
This map is a product of the USGS Digital Geologic Maps of Northern Alaska project, which captures in digital format quadrangles across the entire width of northern Alaska. Sources include geologic maps previously published in hardcopy format and recent updates and revisions based on field mapping by the Alaska Department of Natural Resources,...
Mull, Charles G.; Houseknecht, David W.; Pessel, G.H.; Garrity, Christopher P. Mapa Geologico de Venezuela a Escala 1:750,000
Se presenta un mapa geologico digital de Venezuela sobre un fondo de relieve sombreado. Los datos geologicos e hidrologicos del norte del rio Orinoco proceden de la digitalizacion de mapas geologicos en papel a escala 1:500.000. Estos datos fueron integrados con el mapa geologico digital del Escudo de Guayana Venezolano, a su vez derivado de hojas...
Hackley, Paul C.; Urbani, Franco; Karlsen, Alex W.; Garrity, Christopher P. Geologic map of the Ikpikpuk River quadrangle, Alaska
This map is a product of the USGS Digital Geologic Maps of Northern Alaska project, which captures in digital format quadrangles across the entire width of northern Alaska. Sources include geologic maps previously published in hardcopy format and recent updates and revisions based on field mapping by the Alaska Department of Natural Resources,...
Mull, Charles G.; Houseknecht, David W.; Pessel, G.H.; Garrity, Christopher P. Digital-elevation and surface-classification maps of the Fish Creek area, Harrison Bay quadrangle, northern Alaska
No abstract available.
Mars, John L.; Garrity, Christopher P.; Houseknecht, David W.; Amoroso, Lee; Meares, Donald C. U.S. Geological Survey 2005 oil and gas resource assessment of the Central North Slope, Alaska: play maps and results
No abstract available.
Garrity, Christopher P.; Houseknecht, David W.; Bird, Kenneth J.; Potter, Christopher J.; Moore, Thomas E.; Nelson, Philip H.; Schenk, Christopher J. Geologic shaded relief map of Venezuela
No abstract available.
Hackley, Paul C.; Urbani, Franco; Karlsen, Alex W.; Garrity, Christopher P. Geologic map of the Umiat quadrangle, Alaska
This geologic map of the Umiat quadrangle is a compilation of previously published USGS geologic maps and unpublished mapping done for the Richfield Oil Corporation. Geologic mapping from these three primary sources was augmented with additional unpublished map data from British Petroleum Company. This report incorporates recent revisions in...
Mull, Charles G.; Houseknecht, David W.; Pessel, G.H.; Garrity, Christopher P. Digital shaded-relief map of Venezuela
The digital shaded relief map of Venezuela is a composite of 3-arc-second (approximately 90-meter) elevation data, captured during the Shuttle Radar Topography Mission (SRTM) in February 2000. The SRTM, a joint project between the National Geospatial-Intelligence Agency (NGA) and the National Aeronautics and Space Administration (NASA), provides...
Garrity, Christopher P.; Hackley, Paul C.; Urbani, Franco