Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska

Low Cu content, lead isotope ratios, mineralogy, stratigraphy, geochemistry, and morphology of the stratiform Red Dog and Drenchwater Zn-Pb-Ba deposits are consistent with a syngenetic, submarineexhalative origin in a Carboniferous back-arc or epicontinental rift basin. Red Dog apparently formed wit...

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Bibliographic Details
Main Author: Lueck, Larry
Format: Report
Language:unknown
Published: University of Alaska Mineral Industry Research Laboratory 1986
Subjects:
Red Dog
base-metal sulfide
barite
Brooks Range
Alaska
Online Access:http://hdl.handle.net/11122/1128
id ftunivalaska:oai:scholarworks.alaska.edu:11122/1128
record_format openpolar
spelling ftunivalaska:oai:scholarworks.alaska.edu:11122/1128 2024-09-15T18:00:28+00:00 Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska Lueck, Larry 1986 http://hdl.handle.net/11122/1128 unknown University of Alaska Mineral Industry Research Laboratory MIRL Report;no.71 Lueck, Larry, 1986, Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska: University of Alaska Mineral Industry Research Laboratory Report No. 71, 105 p. http://hdl.handle.net/11122/1128 Red Dog base-metal sulfide barite Technical Report 1986 ftunivalaska 2024-08-12T03:04:02Z Low Cu content, lead isotope ratios, mineralogy, stratigraphy, geochemistry, and morphology of the stratiform Red Dog and Drenchwater Zn-Pb-Ba deposits are consistent with a syngenetic, submarineexhalative origin in a Carboniferous back-arc or epicontinental rift basin. Red Dog apparently formed without vulcanism from ocean-floor hot springs like those active in the Guaymas Basin today. while submarine eruptions accompanied or followed Drenchwater sulfide emplacement. Story Creek and Ginny Creek epigenetic Zn-Pb mineralization is hosted in older sediments of the same basinal sequence. Lead isotope ratios from all four deposits are virtually identical. averaging Pb206/Pb204 = 18.408, Pb207/Pb204 = 15.598, Pb208/Pb204 = 38.250. These values fit the plumbotectonics lead growth curves for the orogene. This lead similarity also implies that the Ginny Creek and Story Creek occurrences are genetically related to Red Dog and Drenchwater, by remobilization or as parts of a regional 'plumbing system ' that fed the exhalative deposits. Report Brooks Range Alaska University of Alaska: ScholarWorks@UA
institution Open Polar
collection University of Alaska: ScholarWorks@UA
op_collection_id ftunivalaska
language unknown
topic Red Dog
base-metal sulfide
barite
spellingShingle Red Dog
base-metal sulfide
barite
Lueck, Larry
Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska
topic_facet Red Dog
base-metal sulfide
barite
description Low Cu content, lead isotope ratios, mineralogy, stratigraphy, geochemistry, and morphology of the stratiform Red Dog and Drenchwater Zn-Pb-Ba deposits are consistent with a syngenetic, submarineexhalative origin in a Carboniferous back-arc or epicontinental rift basin. Red Dog apparently formed without vulcanism from ocean-floor hot springs like those active in the Guaymas Basin today. while submarine eruptions accompanied or followed Drenchwater sulfide emplacement. Story Creek and Ginny Creek epigenetic Zn-Pb mineralization is hosted in older sediments of the same basinal sequence. Lead isotope ratios from all four deposits are virtually identical. averaging Pb206/Pb204 = 18.408, Pb207/Pb204 = 15.598, Pb208/Pb204 = 38.250. These values fit the plumbotectonics lead growth curves for the orogene. This lead similarity also implies that the Ginny Creek and Story Creek occurrences are genetically related to Red Dog and Drenchwater, by remobilization or as parts of a regional 'plumbing system ' that fed the exhalative deposits.
format Report
author Lueck, Larry
author_facet Lueck, Larry
author_sort Lueck, Larry
title Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska
title_short Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska
title_full Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska
title_fullStr Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska
title_full_unstemmed Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska
title_sort petrologic and geochemical characterization of the red dog and other base-metal sulfide and barite deposits in the de long mountains, western brooks range, alaska
publisher University of Alaska Mineral Industry Research Laboratory
publishDate 1986
url http://hdl.handle.net/11122/1128
genre Brooks Range
Alaska
genre_facet Brooks Range
Alaska
op_relation MIRL Report;no.71
Lueck, Larry, 1986, Petrologic and geochemical characterization of the Red Dog and other base-metal sulfide and barite deposits in the De Long Mountains, Western Brooks Range, Alaska: University of Alaska Mineral Industry Research Laboratory Report No. 71, 105 p.
http://hdl.handle.net/11122/1128
_version_ 1810437627002748928

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