Evidence for hot Mississippi Valley-type brines in the Reelfoot Rift complex, south-central United States, in Late Pennsylvanian-Early Permian
Professional Paper
1577
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Abstract
Petrographic and fluid inclusion studies of sparry dolomite cement from Upper Cambrian to Lower Ordovician rocks and conodont thermal-alteration indices provide evidence that hot mississippi valley-type brines were once present in the Reelfoot Rift complex. The cathodoluminescent microstratigraphy of sparry dolomite cement in the Reelfoot Rift resembles that of sparry dolomite cement associated with widespread mississippi valley-type deposition in the Ozark region. If correlative cathodoluminescent zones in the sparry dolomite from the Ozark and Reelfoot Rift regions indicate broadly contemporaneous dolomite deposition, then the results show that the Ozark MVT-type hydrothermal system extended into the Reelfoot region and onto the western flank of the Nashville Dome. Independent evidence supports migration of MVT-type brines into the Ozark region from the Reelfoot Rift complex in late Paleozoic time.
Suggested Citation
Leach, D.L., Apodaca, L., Repetski, J., Powell, J.W., Rowan, E., 1997, Evidence for hot Mississippi Valley-type brines in the Reelfoot Rift complex, south-central United States, in Late Pennsylvanian-Early Permian: U.S. Geological Survey Professional Paper 1577, 36 p., https://doi.org/10.3133/pp1577.
ISSN: 2330-7102 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Evidence for hot Mississippi Valley-type brines in the Reelfoot Rift complex, south-central United States, in Late Pennsylvanian-Early Permian |
| Series title | Professional Paper |
| Series number | 1577 |
| DOI | 10.3133/pp1577 |
| Year Published | 1997 |
| Language | ENGLISH |
| Publisher | U.S. G.P.O. ; For sale by U.S. Geological Survey, Information Services, |
| Description | 36 p. |