| Abstract: | A belt of volcanogenic massive sulfide deposits extends for over 150km along the southern margin of the Yukon-Tanana terrane of the eastern Alaska Range. Located north of the Denali fault, the Yukon-Tanana terrane forms a major basement unit in east-central Alaska. The volcanogenic massive sulfide deposits are primarily in the Jarvis Creek Glacier subterrane, which consists of a volcanogenic massive sulfide-bearing metavolcanic rock member and a metasedimentary rock member. Two periods of regional metamorphism and penetrative deformation are indicated: an older, Early Cretaceous, amphibolite facies event and a younger, mid-Cretaceous lower greenschist facies event. The occurrence, mineralogy and sulphur isotope values are discussed. -from Authors |
| Genre: | Article |
| ProdID: | 70018309 |
| Citation Author: | Lange, I. M.; Nokleberg, W. J.; Newkirk, S. R.; Aleinikoff, J. N.; Church, S. E.; Krouse, H. R. |
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| Citation End Page: | 376 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Economic Geology |
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| Citation Number Of Pages: | 33 |
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| Citation Search Results Text: | Devonian volcanogenic massive sulfide deposits and occurrences, southern Yukon-Tanana Terrace, eastern Alaska Range, Alaska; 1993; Article; Journal; Economic Geology; Lange, I. M.; Nokleberg, W. J.; Newkirk, S. R.; Aleinikoff, J. N.; Church, S. E.; Krouse, H. R. |
| Citation Start Page: | 344 |
| Citation Volume: | 88 |
| Citation Year: | 1993 |
| Type: | citation/reference |
| Text: | Devonian volcanogenic massive sulfide deposits and occurrences, southern Yukon-Tanana Terrace, eastern Alaska Range, Alaska; 1993; Article; Journal; Economic Geology; Lange, I. M.; Nokleberg, W. J.; Newkirk, S. R.; Aleinikoff, J. N.; Church, S. E.; Krouse, H. R. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1993 00:00 -0600 |
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