As a public health precaution due to COVID-19, all Smithsonian museums are temporarily closed. We are not announcing a reopening date at this time and will provide updates on our websites and social media.
Mansur, Adam, Manya, Shukrani, Timpa, Sean, and Rudnick, Roberta L. 2014. "Granulite-Facies Xenoliths in Rift Basalts of Northern Tanzania: Age, Composition and Origin of Archean Lower Crust." Journal of Petrology 55 (7): 1243– 1286. https://doi.org/10.1093/petrology/egu024