Sr isotopic disequilibrium in lherzolites from the Puerco necks, New Mexico
作者： A.M. Kudo , D.G. Brookins , A.W. Laughlin
DOI: 10.1016/0012-821X(72)90175-6
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摘要: Abstract Sr isotopic ratios in coexisting minerals a lherzolite inclusion from the Puerco necks, 60 miles west of Albuquerque, New Mexico, are significantly different. Petrographic and chemical data indicate that these inclusions typical other localities except composition each mineral ultramafic appears to be independent mode is homogeneous among dunites, lherzolites websterites. The have 87 Sr/ 86 higher than their host Pliocene basalts. It seems likely fragments part mantle which was not involved any significant thermal event could restored equilibrium during Mesozoic time. Carter's partial fusion-partial crystallization model for origin unacceptable inclusions.
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