TY - JOUR
T1 - Strontium isotopic geochemistry of Mississippi Valley-type deposits, East Tennessee
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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U2 - 10.1130/0016-7606(1988)100<1300:SIGOMV>2.3.CO;2
DO - 10.1130/0016-7606(1988)100<1300:SIGOMV>2.3.CO;2
M3 - Article
AN - SCOPUS:0024165849
SN - 0016-7606
VL - 100
SP - 1300
EP - 1307
JO - Geological Society of America Bulletin
JF - Geological Society of America Bulletin
IS - 8
ER -