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Occurrence and distribution of sodium in the northern Great Plains lignite

By
Francis T. C. Ting
Francis T. C. Ting
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Published:
January 01, 1990

Sodium is present primarily as exchangeable cations in lignite, and its concentration is inversely proportional to calcium cations. The presence and concentration of the calcium cations in lignite appear to be related to the calcium ion concentration and permeability of the immediate roof rock, sandstones or glacial drift. Data obtained from several hundred bore holes and field checks in strip mines indicate that there is a good correlation between low sodium content in lignite and the presence of sandy roof rocks.

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Contents

GSA Special Papers

Recent Advances in Coal Geochemistry

L. Lynn Chyi
L. Lynn Chyi
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C.- L. Chou
C.- L. Chou
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Geological Society of America
Volume
248
ISBN print:
9780813722481
Publication date:
January 01, 1990

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