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Z. Gainsforth

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Articles by Z. Gainsforth

Space weathering effects in Bennu asteroid samples - Nature Geoscience

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By L. Keller, L. Seifert, L. E. Melendez, L. W. Le, K. C. Welten, K. Nishiizumi, M. W. Caffee, J. Masarik, D. Krietsch, C. Maden, Z. Rahman, Z. Gainsforth, S. A. Sandford
| Nature Verified
Abstract The OSIRIS-REx mission deployed contact pad samplers to collect regolith from the uppermost surface of the asteroid Bennu that was exposed to the space environment.
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Mineralogical evidence for hydrothermal alteration of Bennu samples - Nature Geoscience

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By T. J. Zega, T. McCoy, S. Russell, L. Keller, Z. Gainsforth, S. A. Singerling, C. M. Harrison, G. Libourel, B. Prince, A. L. King, M. Portail, L. W. Le, M. Thompson, M. C. Benner, J. J. Barnes, I. J. Ong, Z. Zeszut, L. R. Wardell, H. C. Bates, P. F. Schofield, N. Almeida, T. Salge, L. Seifert, K. Righter, F. E. Brenker, S. A. Eckley, J. P. Dworkin, R. Jones, G. Domínguez, H. Yurimoto, N. Kawasaki, S. Tachibana, V. E. Hamilton, I. A. Franchi, K. T. Tait, N. E. Timms, F. Jourdan, S. Reddy, D. W. Saxey, M. Kontogiannis, J. Najorka, A. N. Nguyen, H. A. Bechtel, K. Bajo, H. Busemann, W. Rickard
| Nature Verified
Abstract Samples of asteroid (101955) Bennu delivered by the OSIRIS-REx mission offer the opportunity to study pristine planetary materials unchanged by exposure to the terrestrial environment. Here we use a combination of X-ray diffraction and various electron microscopy techniques to explore the detailed mineralogy of Bennu samples and determine the alteration history of the planetesimal protolith from which they originated.
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Compositional evidence for chondrule origins of low‐Ca pyroxenes in comet Wild 2 and a giant cluster IDP

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By A. Westphal, D. J. Joswiak, D. E. Brownlee, Z. Gainsforth
| Wiley Online Library Verified
Supporting Information Filename Description maps14187-sup-0001-Supinfo.docxWord 2007 document , 17.3 KB Data S1. Sample preparation, electron microscopy and selected descriptions of Wild 2 and giant cluster IDP samples. maps14187-sup-0002-TableS1.docxWord 2007 document , 24.2 KB Table S1. Chondrites, groups and sub-types used in this study. REFERENCES ., ., ., and . (Eds.) 1980. JCPDS Mineral Powder Diffraction File Data Book. Swarthmore, PA: JCPDS International Centre for Diffraction Data.
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