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Percent Shale for St. Peter Sandstone |
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Percent Shale for St. Peter Sandstone |
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Lamar, J. E., 1928, Geology and economic resources of the St. Peter Sandstone of Illinois: Illinois Geological Survey Bulletin No. 53, 175 p. |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>The St. Peter Sandstone is a mature quartz arenite that contains little or no silt and clay, except near its perimeter. Lamar (1928; his fig. 10) provided results of grain-size analysis for a number of St. Peter Sandstone samples in which the percent clay ranged from 0 to 5.8 with a mean of about 2.5 percent. Because clay is a minor constituent of the St. Peter Sandstone, we simply assign the percent shale to be 2.5 throughout the central Illinois Basin.</SPAN></SPAN></P><P /></DIV></DIV></DIV> |
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See access and use constraints information. |
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| title:
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St. Peter Percent Shale |
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["St. Peter Sandstone","Illinois Basin","Kentucky","Indiana"] |
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en-US |
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