| Abstract: | Isotopic ages of vein and wall-rock samples have been determined on five massive sulflde deposits of the southern Appalachians. Vein mineral ages of about 1100 m.y. indicate that some ore bodies formed at least as early as the Grenville metamorphism, and probably soon after the formation of the enclosing gneiss and schist. Present textures of the ore were formed during subsequent metamorphic periods at about 450 m.y. and 300 to 330 m.y. ago. ?? 1965. |
| Genre: | Article |
| ProdID: | 70009988 |
| Citation Author: | Kinkel, Jr. , A. R.; Thomas, H. H.; Marvin, R. F.; Walthall, F. G. |
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| Citation End Page: | 724 |
| Citation Issue: | 6 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geochimica et Cosmochimica Acta |
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| Citation Number Of Pages: | 8 |
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| Citation Search Results Text: | Age and metamorphism of some massive sulflde deposits in Virginia, North Carolina and Tennessee; 1965; Article; Journal; Geochimica et Cosmochimica Acta; Kinkel, Jr. , A. R.; Thomas, H. H.; Marvin, R. F.; Walthall, F. G. |
| Citation Start Page: | 717 |
| Citation Volume: | 29 |
| Citation Year: | 1965 |
| Type: | citation/reference |
| Text: | Age and metamorphism of some massive sulflde deposits in Virginia, North Carolina and Tennessee; 1965; Article; Journal; Geochimica et Cosmochimica Acta; Kinkel, Jr. , A. R.; Thomas, H. H.; Marvin, R. F.; Walthall, F. G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1965 00:00 -0600 |
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