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Page 4514, results 112826 - 112850

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Map showing abundance and distribution of arsenic in oxide residues of stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California
Charles L. Whittington, Reinhard W. Leinz, David J. Grimes
1985, Miscellaneous Field Studies Map 1383-J
Stream-sediment sampling in the Medford 1o x 2o quadrangle was undertaken to provide to aid in assessment of the mineral resource potential of the quadrangle. This map presents data on the abundance and distribution of copper in the oxide residues (oxalic-acid leachates) of stream sediments and in the minus-0.18-mm sieve fraction...
Map showing abundance and distribution of chromium in stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California
Charles L. Whittington, David J. Grimes, Reinhard W. Leinz
1985, Miscellaneous Field Studies Map 1383-I
The Medford quadrangle is located in mountainous southwestern Oregon adjacent to the California border and a short distance east of the Pacific coast. Various parts of this area lie in different geologic provinces. Most of the western half of the quadrangle is underlain by pre-Tertiary rocks of the Klamath Mountains...
Map showing abundance and distribution of copper in oxide residues of stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California
Charles L. Whittington, David J. Grimes, Reinhard W. Leinz
1985, Miscellaneous Field Studies Map 1383-G
Stream-sediment sampling in the Medford 1o x 2o quadrangle was undertaken to provide to aid in assessment of the mineral resource potential of the quadrangle. This map presents data on the abundance and distribution of copper in the oxide residues (oxalic-acid leachates) of stream sediments and in the minus-0.18-mm sieve fraction...
Map showing abundance and distribution of silver in stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California
Charles L. Whittington, David J. Grimes, Reinhard W. Leinz
1985, Miscellaneous Field Studies Map 1383-H
The Medford quadrangle is located in mountainous southwestern Oregon adjacent to the California border and a short distance east of the Pacific coast. Various parts of this area lie in different geologic provinces. Most of the western half of the quadrangle is underlain by pre-Tertiary rocks of the Klamath Mountains...
Maps showing abundance and distribution of mercury in rock samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California
Charles L. Whittington, David J. Grimes, Reinhard W. Leinz
1985, Miscellaneous Field Studies Map 1383-K
This map presents data on the abundance and distribution of mercury in 3,146 rock samples from the Medford quadrangle. Most of the rock samples were collected incidental to geologic, geochemical, and mineral resources studies in the period from 1974 to 1980, but about 6 percent date from earlier investigations (Wells,...
Map showing depth to bedrock in the Seattle 30' by 60' Quadrangle, Washington
J. C. Yount, G.R. Dembroff, G.M. Barats
1985, Miscellaneous Field Studies Map 1692
Maps depicting thicknesses of sedimentary units (isopach maps) are standard tools for interpretation of processes and patterns of sedimentation within basins (Potter and Pettijohn, 1977, p. 283-287). Isopach maps showing the thickness of unconsolidated sedimentary deposits overlying bedrock may help locate sources of aggregate and potential ground-water aquifers. These maps...
Map showing ground failures from the Greenville/Mount Diablo earthquake sequence of January 1980, Northern California
R. C. Wilson, G. F. Wieczorek, D. K. Keefer, E. L. Harp, N.E. Tannaci
1985, Miscellaneous Field Studies Map 1711
The Greenville/Mt. Diablo earthquake sequence of January 24-26, 1980, was composed of Small and moderate earthquakes; the two largest shocks, on January 24 and 26, were of magnitudes (M) 5.5 and 5.6, respectively (Bolt and others, 1981). A 5.5 event is at the lower end of the range of earthquake...
Stratigraphic sections, depositional environments, and metal content of the upper part of the Middle Pennsylvanian Minturn Formation, Northern Sangre De Cristo Range, Custer and Saguache counties, Colorado
R. F. Clark, D.M. Walz
1985, Miscellaneous Field Studies Map 1622-D
The calcareous upper part of the 2,000-meter-thick Middle Pennsylvanian Minturn Formation (Lindsey and others, 1985) in the northern Sangre de Cristo Range is a key stratigraphic interval for correlating rocks and mapping the structure of the range. The stratigraphy of this complex and heretofore poorly known interval is reported here...
Maps showing selected geology and phosphate resources of the Meade Peak quadrangle, Bear Lake and Caribou Counties, Idaho
Pamela Dunlap Derkey, Pamela Palmer
1985, Mineral Investigations Resource Map 76
This report summarizes information on the thickness, grade, lateral continuity, phosphate resources, and ownership of phosphate-bearing units in the Meade Peak Phosphatic Shale Member of the Phosphoria Formation in the Meade Peak quadrangle. This report is one of a series of quadrangle reports prepared by the Idaho Bureau of Mines...
Maps showing selected geology and phosphate resources of the Harrington Peak quadrangle, Bear Lake and Caribou Counties, Idaho
Pamela Dunlap Derkey, Bea Johnston, Pamela Palmer, R. D. Hovland
1985, Mineral Investigations Resource Map 74
This report summarizes information on the thickness, grade, lateral continuity, phosphate resources, and ownership of phosphate-bearing units in the Meade Park Phosphatic Shale Member of the Phosphoria Formation in the Harrington Peak quadrangle. This report is one of a series of quadrangle reports prepared by the Idaho Bureau of Mines...
Maps showing selected geology and phosphate resources of the Johnson Creek quadrangle, Caribou County, Idaho
Pamela Palmer, Warren Barrash, P. D. Derkey, Nancy J. Wotruba, Mahasti Fakourbayat, S. T. Miller
1985, Mineral Investigations Resource Map 80
This report summarizes information on the thickness, grade, lateral continuity, phosphate resources, and ownership of phosphate-bearing units in the Meade Peak Phosphatic Shale Member of the Phosphoria Formation in the Johnson Creek quadrangle. This report is one of a series of quadrangle reports prepared by the Idaho Bureau of Mines...