Strontium isotopic geochemistry of Mississippi Valley-type deposits, East Tennessee: implications for age and source of mineralizing brines

S. E. Kesler; L. M. Jones; J. Ruiz

doi:10.1130/0016-7606(1988)100<1300:SIGOMV>2.3.CO;2

Strontium isotopic geochemistry of Mississippi Valley-type deposits, East Tennessee: implications for age and source of mineralizing brines

S. E. Kesler
, L. M. Jones
, J. Ruiz

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

Strontium isotopic ratios of wall-rock, ore, and gangue minerals from the Mascot-Jefferson City, Copper Ridge, and Sweetwater Mississippi Valley-type (MVT) districts and from the Lost Creek barite deposit in East Tennessee were measured in an effort to determine the age of this mineralization and its relation to the tectonic evolution of the Appalachian orogen. Of the three possible source basins for the MVT brines, the Late Proterozoic Ocoee, Cambrian Luttrell, and Ordovician Sevier basins, the Sevier basin appears to be the only one that could have supplied brines of the appropriate composition at geologically reasonable times. Maximum ages of the Lost Creek, Sweetwater, Copper Ridge, and Mascot-Jefferson City mineralization are 520, 460, 405 and 395 my, respectively. -from Authors

Original language	English (US)
Pages (from-to)	1300-1307
Number of pages	8
Journal	Geological Society of America Bulletin
Volume	100
Issue number	8
DOIs	https://doi.org/10.1130/0016-7606(1988)100<1300:SIGOMV>2.3.CO;2
State	Published - 1988
Externally published	Yes

ASJC Scopus subject areas

Geology

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10.1130/0016-7606(1988)100<1300:SIGOMV>2.3.CO;2

Cite this

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title = "Strontium isotopic geochemistry of Mississippi Valley-type deposits, East Tennessee: implications for age and source of mineralizing brines",

abstract = "Strontium isotopic ratios of wall-rock, ore, and gangue minerals from the Mascot-Jefferson City, Copper Ridge, and Sweetwater Mississippi Valley-type (MVT) districts and from the Lost Creek barite deposit in East Tennessee were measured in an effort to determine the age of this mineralization and its relation to the tectonic evolution of the Appalachian orogen. Of the three possible source basins for the MVT brines, the Late Proterozoic Ocoee, Cambrian Luttrell, and Ordovician Sevier basins, the Sevier basin appears to be the only one that could have supplied brines of the appropriate composition at geologically reasonable times. Maximum ages of the Lost Creek, Sweetwater, Copper Ridge, and Mascot-Jefferson City mineralization are 520, 460, 405 and 395 my, respectively. -from Authors",

author = "Kesler, \{S. E.\} and Jones, \{L. M.\} and J. Ruiz",

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journal = "Geological Society of America Bulletin",

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TY - JOUR

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T2 - implications for age and source of mineralizing brines

AU - Kesler, S. E.

AU - Jones, L. M.

AU - Ruiz, J.

PY - 1988

Y1 - 1988

N2 - Strontium isotopic ratios of wall-rock, ore, and gangue minerals from the Mascot-Jefferson City, Copper Ridge, and Sweetwater Mississippi Valley-type (MVT) districts and from the Lost Creek barite deposit in East Tennessee were measured in an effort to determine the age of this mineralization and its relation to the tectonic evolution of the Appalachian orogen. Of the three possible source basins for the MVT brines, the Late Proterozoic Ocoee, Cambrian Luttrell, and Ordovician Sevier basins, the Sevier basin appears to be the only one that could have supplied brines of the appropriate composition at geologically reasonable times. Maximum ages of the Lost Creek, Sweetwater, Copper Ridge, and Mascot-Jefferson City mineralization are 520, 460, 405 and 395 my, respectively. -from Authors

AB - Strontium isotopic ratios of wall-rock, ore, and gangue minerals from the Mascot-Jefferson City, Copper Ridge, and Sweetwater Mississippi Valley-type (MVT) districts and from the Lost Creek barite deposit in East Tennessee were measured in an effort to determine the age of this mineralization and its relation to the tectonic evolution of the Appalachian orogen. Of the three possible source basins for the MVT brines, the Late Proterozoic Ocoee, Cambrian Luttrell, and Ordovician Sevier basins, the Sevier basin appears to be the only one that could have supplied brines of the appropriate composition at geologically reasonable times. Maximum ages of the Lost Creek, Sweetwater, Copper Ridge, and Mascot-Jefferson City mineralization are 520, 460, 405 and 395 my, respectively. -from Authors

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Strontium isotopic geochemistry of Mississippi Valley-type deposits, East Tennessee: implications for age and source of mineralizing brines

Abstract

ASJC Scopus subject areas

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