Geologic setting of the hillabee metavolcanic complex and associated strata-bound sulfide deposits in the appalachian piedmont of alabama
Journal Article
·
· Econ. Geol.; (United States)
The frontal crystalline thrust sheet of the southern Appalachians in Alabama is a sequence of lower greenschist facies rocks known as the Talladega slate belt. This sequence is composed dominantly of metapelites and metasandstones, but it contains a distinctive metavolcanic complex, the Hillabee Greenstone, at the stratigraphic top. Sulfide deposits occur throughout the 170 km outcrop extent of the Hillabee. Low K tholeitic rocks constitute the bulk of the metavolcanic rocks; calc-alkaline quartz dacites are common. The Hillabee Greenstone appears to be the distal continentward portion of a volcanic arc system which developed during the middle Paleozoic in the southernmost Appalachians. The basal, dominantly pyroclastic part of the volcanic sequence is interlayered with the upper part of the Talladega Group, which locally contains a Lower to Middle Devonian fossil assemblage. Refs.
- Research Organization:
- Fla State Univ, Tallahassee, USA
- OSTI ID:
- 6700445
- Journal Information:
- Econ. Geol.; (United States), Journal Name: Econ. Geol.; (United States) Vol. 77:2; ISSN ECGLA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Timing of middle Paleozoic (Acadian) metamorphism in the southern Appalachians: K-Ar studies in the Talladega belt, Alabama
Geology and geochemistry of the strata-bound sulfide deposits of the pyriton district, Alabama
Tectonic setting of Talladega belt olistostromal sequences, Alabama appalachians
Journal Article
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Sun Jul 01 00:00:00 EDT 1990
· Geology; (USA)
·
OSTI ID:6357376
Geology and geochemistry of the strata-bound sulfide deposits of the pyriton district, Alabama
Journal Article
·
· Econ. Geol.; (United States)
·
OSTI ID:6700636
Tectonic setting of Talladega belt olistostromal sequences, Alabama appalachians
Conference
·
Mon Dec 31 23:00:00 EST 1984
· Geol. Soc. Am., Abstr. Programs; (United States)
·
OSTI ID:6273308