Journal article
Large Th-230-excesses in basalts produced by partial melting of spinel lherzolite
- Abstract:
-
Excesses of 230Th over 238U in mid-ocean ridge basalts (MORB) require that the mantle source region preferentially retains U over Th during partial melting. Based on existing mineral-melt partitioning data, 230Th excesses are widely cited as evidence that partial melting beneath ridges begins within the garnet stability field, at pressures over 2.8 GPa. However, recent experimental and theoretical studies of U-Th partitioning show that melting in the presence of aluminous mantle clinopyroxene...
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- Publication status:
- Published
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- Publisher copy:
- 10.1016/S0009-2541(99)00127-8
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Bibliographic Details
- Journal:
- CHEMICAL GEOLOGY
- Volume:
- 162
- Issue:
- 2
- Pages:
- 127-136
- Publication date:
- 2000-01-04
- DOI:
- ISSN:
-
0009-2541
- Source identifiers:
-
163829
Item Description
- Language:
- English
- Keywords:
- Pubs id:
-
pubs:163829
- UUID:
-
uuid:764cc3a2-ac56-4336-8aec-906f5b038aa2
- Local pid:
- pubs:163829
- Deposit date:
- 2012-12-19
Terms of use
- Copyright date:
- 2000
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