Sample 67215: An Anomalous Ferroan Anorthosite
I. S. McCallum, Jeffrey M. Schwartz, Fernando Cámara, Marc D. Norman
Abstract
I. S. McCallum, Jeffrey M. Schwartz, Fernando Cámara, Marc D. Norman
Abstract
Sample 67215c is a ferroan anorthosite clast with an age of 4.4 Ga and a positive Nd. The sample has a well preserved microcumulate texture. Relatively rapid cooling rates coupled with preserved pigeonite are consistent with a shallow (<1 km) origin. Additional information is contained in the original extended abstract.
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Sample 67215c is a ferroan anorthosite clast with an age of 4.4 Ga and a positive Nd. The sample has a well preserved microcumulate texture. Relatively rapid cooling rates coupled with preserved pigeonite are consistent with a shallow (<1 km) origin. Additional information is contained in the original extended abstract.
Key concepts: Anorthosite, Pigeonite, Geology, Sample (material), Paleontology, Plagioclase, Augite, Physics