Geology of the Sumdum Copper-Zinc Prospect, Southeastern Alaska

One of 38 reports in the series: Mineral resources of Alaska available on this site.
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Description

From abstract: The Sumdum copper-zinc prospect is in an alpine region on the mainland of southeastern Alaska, about 50 miles southeast of Juneau and about 25 miles west of the Canadian boundary. The ore-bearing outcrops at the prospect were discovered by the Alaska Helicopter Syndicate during the summer of 1958. The prospect is within a few thousand feet of the western margin of the . Coast Range batholith in regionally metamorphosed rocks that locally -have -been contact: metamorphosed. Most of the known ore deposits are -in the intermediate unit of three metamorphic-rock units that were mapped.

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iv, 31 p. : ill., maps ; 23 cm.

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MacKevett, E. M., Jr. & Blake, M. Clark, Jr. 1964.

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From abstract: The Sumdum copper-zinc prospect is in an alpine region on the mainland of southeastern Alaska, about 50 miles southeast of Juneau and about 25 miles west of the Canadian boundary. The ore-bearing outcrops at the prospect
were discovered by the Alaska Helicopter Syndicate during the summer of 1958. The prospect is within a few thousand feet of the western margin of the . Coast Range batholith in regionally metamorphosed rocks that locally -have -been contact: metamorphosed. Most of the known ore deposits are -in the intermediate unit of three metamorphic-rock units that were
mapped.

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iv, 31 p. : ill., maps ; 23 cm.

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"Recently discovered copper-zinc deposits near western margin of Coast Range batholith."

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  • OCLC: 885121077
  • SuDoc Number: I 19.3:1108-E
  • Report No.: USGS Bulletin 1108-E
  • Archival Resource Key: ark:/67531/metadc304425

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Technical Report Archive and Image Library

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  • 1964

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  • Jan. 14, 2017, 10:15 p.m.

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  • Jan. 11, 2018, 2:37 p.m.

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MacKevett, E. M., Jr. & Blake, M. Clark, Jr. Geology of the Sumdum Copper-Zinc Prospect, Southeastern Alaska, report, 1964; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc304425/: accessed May 13, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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