Preliminary geologic map of the McCarthy B-5 quadrangle, Alaska
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IMAP↗
Geology topics
E.M. MacKevett
Publications and source records attributed to E.M. MacKevett.
Preliminary geologic map of the McCarthy C-6 quadrangle, Alaska
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IMAP↗
Potassium-argon and lead-alpha ages of plutonic rocks, Bokan Mountain area, Alaska
Most of the granitic rocks in the Bokan Mountain area, southeastern Alaska, are early Paleozoic (probably Ordovician) judged by potassium-argon and lead-alpha age measurements. The Bokan Mountain Granite, the youngest intrusive unit in the area, belongs to a Mesozoic plutonic episode. These age measurements are the first direct evidence for the emplacement of early Paleozoic granitic intrusive rocks close to the Pacific margin of North America.
Alaska↗
Geology of the Sumdum copper-zinc prospect, southeastern Alaska
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Bulletin↗
Geology of the North Bradfield River iron prospect, southeastern Alaska
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Bulletin↗
Geology of the Red Devil quicksilver mine, Alaska
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Bulletin↗
Preliminary geologic map of the McCarthy C-5 quadrangle, Alaska
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IMAP↗
Geology and ore deposits of the Kern River uranium area, California
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Bulletin↗