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Trace element geochemistry of the peridotite-gabbro-basalt suite from DSDP Leg 37 |
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| Authors: | J Dostal GK Muecke |
| Institution: | aDepartment of Geology, Saint Mary's University, Halifax, N.S. Canada bDepartment of Geology, Dalhousie University, Halifax, N.S. Canada |
| Abstract: | REE abundances in gabbros and peridotites from Site 334 of DSDP Leg 37 show that these rocks are cumulates produced by fractional crystallization of a primitive oceanic tholeiite magma. They may be part of a layered oceanic complex. The REE distributions in the residual liquids left after such a fractionation are similar to those of incompatible element-depleted oceanic tholeiites. The REE data indicate that the basalts which overlie the gabbro-peridotite complex, are not genetically related to plutonic rocks. |
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