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C. M. McDougal

Publications and source records attributed to C. M. McDougal.

At least 37 records · Page 2Linked to original sources
USGS1976

Distribution and abundance of copper in stream sediments and moraine debris, McCarthy Quadrangle, Alaska

A geochemical survey was conducted in the McCarthy quadrangle, Alaska, to identify areas containing anomalous concentrations of various metallic and nonmetallic elements. This study incorporates the results of analyses for copper, from 1,454 stream sediment and glacial moraine debris samples collected in the quadrangle, and analyzed by the U.S. Geological Survey between 1961 and 1976 using semiquantitative emission spectrophotometry. In addition, the study includes most of the analytical results of the samples of stream sediment from the White River area, located in the northwestern part of the quadrangle, which were collected and analyzed by the Alaska Division of Mines and Geology (Knaebel, 1971).

Alaska↗
USGS1976

Distribution and abundance of lead in stream sediments and moraine debris, McCarthy Quadrangle, Alaska

A geochemical survey was conducted in the McCarthy quadrangle, Alaska, to identify areas containing anomalous concentrations of various metallic and nonmetallic elements. This study incorporates the results of analyses for lead, from 1,453 stream sediment and glacial moraine debris samples collected in the quadrangle, and analyzed by the U.S. Geological Survey between 1961 and 1976 using semiquantitative emission spectrophotometry. In addition, the study includes most of the analytical results of the samples of stream sediment from the White River area, located in the northwestern part of the quadrangle, which were collected and analyzed by the Alaska Division of Mines and Geology (Knaebel, 1971).

Alaska↗
USGS1976

Distribution and abundance of gold in stream sediments and moraine debris, McCarthy quadrangle, Alaska

A geochemical survey was conducted in the McCarthy quadrangle Alaska, to identify areas containing anomalous concentrations of various metallic and nonmetallic elements. This study incorporates the results of analyses for gold from 764 stream sediment and glacial moraine debris samples collected in the quadrangle, and analyzed by the U.S. Geological Survey between 1961 and 1976 using atomic absorption spectrophotometry. No analytical results for gold are available for stream sediment samples from the White River area, located in the northeastern part of the quadrangle. The accompanying map shows the distribution and relative abundance of gold in stream sediment and glacial moraine debris samples. Geochemical analyses have been grouped and are represented by symbols on a base map, which includes topography and generalized geology. The range of analytical values and the symbol that represents it are shown on the histogram. Graphical representation of analytical values on the map permits easy observation of any large variation resulting from separate or duplicate samples collected at the same or nearby localites.

Alaska↗
USGS1976

Distribution and abundance of arsenic and mercury in stream sediments and moraine debris, McCarthy quadrangle, Alaska

A geochemical survey was conducted in the McCarthy quadrangle Alaska, to identify areas containing anomalous concentrations of various metallic and nonmetallic elements. This study incorporates the results of analyses for arsenic and mercury from 426 and 424 stream sediment and glacial moraine debris samples collected in the quadrangle, and analyzed by the U.S. Geological Survey between 1961 and 1976 using atomic absorption spectrophotometry. No analytical results for arsenic and mercury are available for stream sediment samples from the White River area, located in the northeastern part of the quadrangle. The accompanying map shows the distribution and relative abundance of arsenic and mercury in stream sediment and glacial moraine debris samples. Geochemical analyses have been grouped and are represented by symbols on a base map, which includes topography and generalized geology. The range of analytical values and the symbol that represents it are shown on the histogram. Graphical representation of analytical values on the map permits easy observation of any large variation resulting from separate or duplicate samples collected at the same or nearby localites.

Alaska↗
USGS1976

Distribution and abundance of molybdenum in bedrock, mineralized, vein and altered rock samples, McCarthy quadrangle, Alaska

A geochemical survey was conducted in the McCarthy quadrangle Alaska, to identify areas containing anomalous concentrations of various metallic and nonmetallic elements. This study incorporates the results of analyses for molybdenum from 825 rock samples collected in the quadrangle, and analyzed by the U.S. Geological Survey between 1961 and 1976 using semi-quantitative emission spectrophotometry. The samples included both unaltered and hydrothermally altered rocks. The hydrothermally altered rock consists of ore grade materials, gossans, fault gouge, vein materials, silica-rich boxworks, veins adjacent to faults, and fracture surfaces showing evidence of mineralization. Therefore, the analytical data set may be considered representative of most rock types known to occur in the study area. The accompanying map shows the distribution and relative abundance of molybdenum in rocks collected. Geochemical analyses have been grouped and are represented by symbols on a base map, which includes topography and generalized geology. The range of analytical values and the symbol that represents it are shown on the histogram. Graphical representation of analytical values on the map permits easy observation of any large variation resulting from separate or duplicate samples collected at the same or nearby localites. All samples were crushed and ground to pass through a 180 micron opening sieve before being analyzed.

Alaska↗