STRONTIUM ISOTOPIC GEOCHEMISTRY OF MISSISSIPPI VALLEY-TYPE DEPOSITS, EAST TENNESSEE: IMPLICATIONS FOR AGE AND SOURCE OF MINERALIZING BRINES.

Stephen E. Kesler, Lois M. Jones, Joaquin Ruiz

Research output: Contribution to journalArticle

33 Citations (Scopus)

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. The maximum ages of the Lost Creek, Sweetwater, Copper Ridge, and Mascot-Jefferson City mineralization are 520, 460, 405, and 395 m. y. , respectively. The Lost Creek barite mineralization formed as an exhalative deposit in the Sevier basin and that the Sweetwater fluorite-barite mineralization formed during the later part of the Taconic orogeny. The Copper Ridge and Mascot-Jefferson City mineralization could have formed either prior to or during the Alleghanian orogeny.

Original languageEnglish (US)
Pages (from-to)1300-1307
Number of pages8
JournalBulletin of the Geological Society of America
Volume100
Issue number8
StatePublished - Aug 1988
Externally publishedYes

Fingerprint

Mississippi Valley-type deposit
strontium
geochemistry
mineralization
barite
copper
basin
exhalative deposit
Alleghanian orogeny
Taconic orogeny
valley
gangue
fluorite
wall rock
isotopic ratio
tectonic evolution
Ordovician
Proterozoic
mineral
city

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

STRONTIUM ISOTOPIC GEOCHEMISTRY OF MISSISSIPPI VALLEY-TYPE DEPOSITS, EAST TENNESSEE : IMPLICATIONS FOR AGE AND SOURCE OF MINERALIZING BRINES. / Kesler, Stephen E.; Jones, Lois M.; Ruiz, Joaquin.

In: Bulletin of the Geological Society of America, Vol. 100, No. 8, 08.1988, p. 1300-1307.

Research output: Contribution to journalArticle

@article{938b5c3c20bb4ec08876efdc9f8a4e98,
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. The maximum ages of the Lost Creek, Sweetwater, Copper Ridge, and Mascot-Jefferson City mineralization are 520, 460, 405, and 395 m. y. , respectively. The Lost Creek barite mineralization formed as an exhalative deposit in the Sevier basin and that the Sweetwater fluorite-barite mineralization formed during the later part of the Taconic orogeny. The Copper Ridge and Mascot-Jefferson City mineralization could have formed either prior to or during the Alleghanian orogeny.",
author = "Kesler, {Stephen E.} and Jones, {Lois M.} and Joaquin Ruiz",
year = "1988",
month = "8",
language = "English (US)",
volume = "100",
pages = "1300--1307",
journal = "Geological Society of America Bulletin",
issn = "0016-7606",
publisher = "Geological Society of America",
number = "8",

}

TY - JOUR

T1 - STRONTIUM ISOTOPIC GEOCHEMISTRY OF MISSISSIPPI VALLEY-TYPE DEPOSITS, EAST TENNESSEE

T2 - IMPLICATIONS FOR AGE AND SOURCE OF MINERALIZING BRINES.

AU - Kesler, Stephen E.

AU - Jones, Lois M.

AU - Ruiz, Joaquin

PY - 1988/8

Y1 - 1988/8

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. The maximum ages of the Lost Creek, Sweetwater, Copper Ridge, and Mascot-Jefferson City mineralization are 520, 460, 405, and 395 m. y. , respectively. The Lost Creek barite mineralization formed as an exhalative deposit in the Sevier basin and that the Sweetwater fluorite-barite mineralization formed during the later part of the Taconic orogeny. The Copper Ridge and Mascot-Jefferson City mineralization could have formed either prior to or during the Alleghanian orogeny.

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. The maximum ages of the Lost Creek, Sweetwater, Copper Ridge, and Mascot-Jefferson City mineralization are 520, 460, 405, and 395 m. y. , respectively. The Lost Creek barite mineralization formed as an exhalative deposit in the Sevier basin and that the Sweetwater fluorite-barite mineralization formed during the later part of the Taconic orogeny. The Copper Ridge and Mascot-Jefferson City mineralization could have formed either prior to or during the Alleghanian orogeny.

UR - http://www.scopus.com/inward/record.url?scp=0024165849&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024165849&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0024165849

VL - 100

SP - 1300

EP - 1307

JO - Geological Society of America Bulletin

JF - Geological Society of America Bulletin

SN - 0016-7606

IS - 8

ER -