| Abstract: | Iron-formation occurs as stratigraphic units within a layered andesite-basalt sequence. The sequence is metamorphosed to greenschist facies, intruded by syntectonic granodiorite and post-tectonic granite, and complexly deformed and grossly fragmented; the rocks are allochthonous along thrust faults. The iron deposits are chemical precipitates, accumulated during lulls in volcanism, apparently in an intraoceanic island-arc environment. The deposits are of the Algoma type of iron-formation.-G.J.N. |
| Genre: | Article |
| ProdID: | 70012850 |
| Citation Author: | Sims, P. K.; James, H. L. |
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| Citation End Page: | 1784 |
| Citation Issue: | 8 |
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| Citation Language: | English |
| Citation Larger Work Title: | Economic Geology |
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| Citation Number Of Pages: | 8 |
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| Citation Search Results Text: | Banded iron-formations of late Proterozoic age in the central eastern desert, Egypt: geology and tectonic setting.; 1984; Article; Journal; Economic Geology; Sims, P. K.; James, H. L. |
| Citation Start Page: | 1777 |
| Citation Volume: | 79 |
| Citation Year: | 1984 |
| Type: | citation/reference |
| Text: | Banded iron-formations of late Proterozoic age in the central eastern desert, Egypt: geology and tectonic setting.; 1984; Article; Journal; Economic Geology; Sims, P. K.; James, H. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1984 00:00 -0600 |
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