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Correlation of coal beds in the Fruitland Formation as interpreted from geophysical logs, east-central San Juan County, New Mexico Correlation of coal beds in the Fruitland Formation as interpreted from geophysical logs, east-central San Juan County, New Mexico

Correlation of coal beds in the Fruitland Formation (Upper Cretaceous) in the subsurface, from interpretation of geophysical logs, is an outgrowth of unpublished studies of deep coal on the Navajo Reservation by the author in the Toadlena 30 x 60 minute quadrangle, New Mexico, and by W. J. Mapel in the Farmington 30 x 60 minute quadrangle, New Mexico. The lines of sections of this report...

Delineation of flood hazards in the Ruelas Canyon quadrangle, Pima County, Arizona Delineation of flood hazards in the Ruelas Canyon quadrangle, Pima County, Arizona

No abstract available.

Depth to bedrock and classification of unconsolidated materials above the water table in stratified-drift areas of part of the Pootatuck River Valley, Newtown, Connecticut Depth to bedrock and classification of unconsolidated materials above the water table in stratified-drift areas of part of the Pootatuck River Valley, Newtown, Connecticut

No abstract available.

Depth to bedrock, depth to the water table, and classification of unconsolidated materials above the water table in stratified-drift areas of part of the Farmington River Valley, Farmington, Connecticut Depth to bedrock, depth to the water table, and classification of unconsolidated materials above the water table in stratified-drift areas of part of the Farmington River Valley, Farmington, Connecticut

No abstract available.

Depth to bedrock, depth to the water table, and classification of unconsolidated materials above the water table in stratified-drift areas of part of the Pomperaug River Valley, Southbury and Woodbury, Connecticut Depth to bedrock, depth to the water table, and classification of unconsolidated materials above the water table in stratified-drift areas of part of the Pomperaug River Valley, Southbury and Woodbury, Connecticut

No abstract available.

Divisions of potential fracture permeability, based on distribution of structures and linear features in sedimentary rocks, northern Great Plains-Rocky Mountains region of Montana, North Dakota, South Dakota, Wyoming, and northern Nebraska Divisions of potential fracture permeability, based on distribution of structures and linear features in sedimentary rocks, northern Great Plains-Rocky Mountains region of Montana, North Dakota, South Dakota, Wyoming, and northern Nebraska

Division of fracture traces in sedimentary rocks of Cenozoic to Precambrian Age - Eastern and central North and South Dakota and northern Nebraska include only Cenozoic to Pennsylvanian rocks at the surface and at relatively shallow depths; the area of shallow thrust faulting in north-central Montana includes many Cretaceous rocks. Fractures in the deeper rocks in these areas vary...

Electric log correlations of the upper Cretaceous rocks in the Mesaverde Group, Baxter Shale, and equivalent units across the Great Divide Basin in southwest Wyoming Electric log correlations of the upper Cretaceous rocks in the Mesaverde Group, Baxter Shale, and equivalent units across the Great Divide Basin in southwest Wyoming

No abstract available.

Engineering geologic maps of the Government Hill area, Anchorage, Alaska Engineering geologic maps of the Government Hill area, Anchorage, Alaska

No abstract available.

Equivalent freshwater head and dissolved-solids concentration of water in rocks of Cambrian, Ordovician, and Mississippian age in the northern Midcontinent, U.S.A. Equivalent freshwater head and dissolved-solids concentration of water in rocks of Cambrian, Ordovician, and Mississippian age in the northern Midcontinent, U.S.A.

No abstract available.

Estimated resources of non-leased federal coal, Powder River Basin, Montana and Wyoming Estimated resources of non-leased federal coal, Powder River Basin, Montana and Wyoming

Maps are generated by combining digital ownership data with geologic resource estimates and other spatial coal data in a geographic information system (GIS). For example, we merged the newly compiled Federal coal ownership files with resource calculations from the 1970's for the Powder River Basin (Trent, 1986). For the first time, we are able to visually display the location of...

Fence diagram showing coal bed correlations within the upper part of the Fort Union Formation, in and adjacent to the eastern part of the Kaycee 30' x 60' Quadrangle, Johnson and Campbell counties, Wyoming Fence diagram showing coal bed correlations within the upper part of the Fort Union Formation, in and adjacent to the eastern part of the Kaycee 30' x 60' Quadrangle, Johnson and Campbell counties, Wyoming

No abstract available.

Free-air gravity anomaly map of the Long Island Platform Free-air gravity anomaly map of the Long Island Platform

The U.S. Geological Survey (USGS) has collected marine gravity data along the U.S. Atlantic continental margin during the last decade. This map of the Long Island platform combines the data used to make the preliminary free-air gravity anomaly map of the Atlantic continental margin (Grow and others, 1976) with the new gravity values collected aboard the RV Gilliss in 1979 and the RV Gyre...
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