+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + NASA Center + Publication Year + Subject + Availability Options – Item/Media Type  + Journal Article  + Technical Report  + Conference Paper Selected Navigations: Author > Martinez, R. R. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 8 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order Distribution of siderophile and other trace elements in melt rock at the Chicxulub impact structure Author(s): Schuraytz, B. C.; Lindstrom, D. J.; Martinez, R. R.; Sharpton, V. L.; Marin, L. E. Abstract: Recent isotopic and mineralogical studies have demonstrated a temporal and chemical link between the Chicxulub multiring impact basin and ejecta at the Cretaceous-Tertiary boundary. A fundamental problem yet to be resolved, ... NASA Center: Johnson Space Center Publication Year: 1994 Added to NTRS: 2008-06-02 Accession Number: 94N35456; Document ID: 19940030950 INAA of CAIs from the Maralinga CK4 chondrite: Effects of parent body thermal metamorphism Author(s): Lindstrom, D. J.; Keller, L. P.; Martinez, R. R. Abstract: Maralinga is an anomalous CK4 carbonaceous chondrite which contains numerous Ca-, Al-rich inclusions (CAI's) unlike the other members of the CK group. These CAI's are characterized by abundant green hercynitic spinel ... NASA Center: Johnson Space Center Publication Year: 1993 Added to NTRS: 2008-06-02 Accession Number: 94N16355; Document ID: 19940011882 Geochemistry of HASP, VLT, and other glasses from double drive tube 79001/2 Author(s): Lindstrom, D. J.; Wentworth, S. J.; Martinez, R. R.; Mckay, D. S. Abstract: The Apollo 17 double drive tube 79001/2 (station 9, Van Serg Crater) is distinctive because of its extreme maturity, abundance, and variety of glass clasts. It contains mare glasses of both high Ti and very low Ti (VLT) ... NASA Center: Johnson Space Center Publication Year: 1992 Added to NTRS: 2008-06-01 Accession Number: 93N18800; Document ID: 19930009611 New observations on the quartz monzodiorite-granite suite Author(s): Marvin, U. B.; Holmberg, B. B.; Lindstrom, M. M.; Martinez, R. R. Abstract: Five new fragments of quartz monzodiorite (QMD) were identified in particles from soil 15403, which was collected from the boulder sampled as rock 15405, an impact-melt breccia containing clasts of KREEP basalt, QMD, ... NASA Center: Johnson Space Center Publication Year: 1991 Added to NTRS: 2004-11-03 Accession Number: 91A42340; Document ID: 19910057717 Evolved hypabyssal rocks from Station 7, Apennine Front, Apollo 15 Author(s): Ryder, G.; Martinez, R. R. Abstract: Three 4-10-mm coarse fines cataclasized particles from Station 7 on the Apennine Front, Apollo 15, have mineral phases and compositions similar to those in the quartz monzodiorites in 15405, from Station 6a. The chemical ... NASA Center: NASA (non Center Specific) Publication Year: 1991 Added to NTRS: 2004-11-03 Accession Number: 91A42341; Document ID: 19910057718 Post-igneous redistribution of components in eucrites Author(s): Phinney, W. C.; Lindstrom, D. J.; Mittlefehldt, D. W.; Martinez, R. R. Abstract: In our analyses, we utilize a microdrilling technique that removes 40 to 100 micron diameter cores from mineral grains in thin sections analyzed by microprobe. The cores are then analyzed by INAA using the technique of ... NASA Center: Johnson Space Center Publication Year: 1993 Added to NTRS: 2004-11-03 Accession Number: 94N20684; Document ID: 19940016211 Apollo 12 ropy glasses revisited Author(s): Wentworth, S. J.; Mckay, D. S.; Lindstrom, D. J.; Basu, A.; Martinez, R. R.; Bogard, D. D.; Garrison, D. H. Abstract: We analyzed ropy glasses from Apollo 12 soils 12032 and 12033 by a variety of techniques including SEM/EDX, electron microprobe analysis, INAA, and Ar-39-Ar-40 age dating. The ropy glasses have potassium rare earth elements ... NASA Center: Johnson Space Center Publication Year: 1994 Added to NTRS: 2004-11-03 Accession Number: 95A63352; Document ID: 19950031753 Petrology and geochemistry of VLT glasses from double drive tube 79001/2 Author(s): Wentworth, Susan J.; Lindstrom, D. J.; Martinez, R. R.; Mckay, D. S. Abstract: As a part of more general studies of soils from Apollo 17 double drive tube 79001/2, glasses from the 79001/2 core are being analyzed by a multidisciplinary approach including SEM/EDS and INAA. Efforts are currently focused ... NASA Center: Johnson Space Center Publication Year: 1993 Added to NTRS: 2004-11-03 Accession Number: 94N20870; Document ID: 19940016397 + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007