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Economic Geology; November 1965; v. 60; no. 7; p. 1451-1458
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Petrological and electrical conductivity characters of coals, affected by igneous intrusives around Pathardih, in Jharia coalfield, Dhanbad District, India

Bankim Mukherjee

The rank of coal increases toward contact with intrusive lamprophyre. The minimum conductivity is in unaffected coal; maximum conductivity is next to the contact in coal metamorphosed by intrusive sills, but at some distance from contact with dikes. Anisotropy of conductivity is ascribed to differential compaction during intrusion.

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JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
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