| Abstract: | It is commonly accepted that beneath the continental crust lies a keel of lithospheric mantle, which extends 50-200 kilometres downward to a transition zone into the asthenosphere. The chemical and physical properties of this reservoir are best known through studies of the basalts and xenoliths that provide samples of the subcrustal mantle. Although sharing many characteristics with oceanic island basalts, some continental basalts become increasingly distinct isotopically as crustal age increases, strongly supporting a permanent association between crust and mantle. Five models are discussed that relate the isotopic composition of the continental lithospheric mantle to that of other parts of the terrestrial system, which may be involved in its origin and evolution. The potential locations of the contribution components and the mechanisms and timing of their assembly into lithosphere are considered. -from Authors |
| Genre: | Article |
| ProdID: | 70014946 |
| Citation Author: | Zartman, R. E.; Futa, K.; Peng, Z. C. |
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| Citation End Page: | 557 |
| Citation Issue: | 5 |
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| Citation Language: | English |
| Citation Larger Work Title: | Australian Journal of Earth Sciences |
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| Citation Number Of Pages: | 13 |
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| Citation Search Results Text: | A comparison of Sr-Nd-Pb isotopes in young and old continental lithospheric mantle: Patagonia and eastern China; 1991; Article; Journal; Australian Journal of Earth Sciences; Zartman, R. E.; Futa, K.; Peng, Z. C. |
| Citation Start Page: | 545 |
| Citation Volume: | 38 |
| Citation Year: | 1991 |
| Type: | citation/reference |
| Text: | A comparison of Sr-Nd-Pb isotopes in young and old continental lithospheric mantle: Patagonia and eastern China; 1991; Article; Journal; Australian Journal of Earth Sciences; Zartman, R. E.; Futa, K.; Peng, Z. C. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1991 00:00 -0600 |
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