Metal/sulfide-silicate intergrowth textures in EL3 meteorites: Origin by impact melting on the EL parent body

Meteoritics and Planetary Science

Volumn 46, Issue 10, 2011, Pages 1484-1497

  Van Niekerk, Deon ^a   Keil, Klaus ^a  

^a UNIVERSITY OF HAWAII   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 80053902414     PISSN: 10869379     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1945-5100.2011.01244.x     Document Type: Article

References (50)

1. Biehl L. and Landgrebe D. 2002. Multispec-A tool for multispectral-hyperspectral image data analysis. Computers & Geosciences 28:1153-1159.
2. Bogard D. D., Dixon E. T., and Garrison D. H. 2010. Ar-Ar ages and thermal histories of enstatite meteorites. Meteoritics & Planetary Science 45:723-742.
3. Buchwald V. F. 1975. The minerals and structural components of iron meteorites. In Handbook of iron meteorites, vol. 1. Berkeley: University of California Press. pp. 87-114.
4. Burbine T. H., McCoy T. J., and Dickinson T. L. 2000. Origin of plagioclase-"enriched" enstatite meteorites (abstract). Meteoritics & Planetary Science 35:A36.
5. Burditt M. F. 1993. Ductile iron handbook, rev. ed. Des Plaines: American Foundarymen's Society. 277 p.
6. Campbell A. J., Zanda B., Perron C., Meibom A., and Petaev M. I. 2005. Origin and thermal history of Fe-Ni metal in primitive chondrites. In Chondrites and the protoplanetary disk. Astronomical Society of the Pacific Conference Series 341, edited by Krot A. N., Scott E. R. D., and Reipurth B. San Francisco: Astronomical Society of the Pacific. pp. 407-427.
7. Chang Y., Benoit P., and Sears D. W. G. 1992. Bulk compositional confirmation of the first EL3 chondrite and some implications (abstract). 23rd Lunar and Planetary Science Conference. pp. 217-218.
8. El Goresy A., Yabuki H., Ehlers K., Woolum D., and Pernicka E. 1988. Qingzhen and Yamato-691: A tentative alphabet for the EH chondrites. Proceedings of the NIPR Symposium on Antarctic Meteorites 1:65-101.
9. Fagan T. J., Scott E. R. D., Keil K., Cooney T. F., and Sharma S. K. 2000. Formation of feldspathic and metallic melts by shock in enstatite chondrite Reckling Peak A80259. Meteoritics & Planetary Science 35:319-329.
10. Flemings M. C. 1974. Solidification processing. New York: McGraw-Hill. 364 p.
11. Hicks T. L. 2002. Automated mapping and modal analysis of meteorite thin sections using image processing software. M.S. thesis, University of Hawai'i at Manoa.
12. Holsapple K., Giblin I., Housen K., Nakamura A., and Ryan E. 2002. Asteroid impacts: Laboratory experiments and scaling laws. In Asteroids III, edited by Bottke F. W., Cellino A., Paolicchi P., and Binzel R. P. Tucson, AZ: The University of Arizona Press. pp. 443-462.
13. Hörz F., Cintala M. J., See T. H., and Le L. 2005. Shock melting of ordinary chondrite powders and implications for asteroidal regoliths. Meteoritics & Planetary Science 40:1329-1346.
14. Ikeda Y. 1989. Petrochemical study of the Yamato-691 enstatite chondrite (E3) IV: Descriptions and mineral chemistry of opaque-mineral nodules. Proceedings of the NIPR Symposium on Antarctic Meteorites 2:109-146.
15. Keil K. 1968. Mineralogical and chemical relationships among enstatite chondrites. Journal of Geophysical Research 73:6945-6976.
16. Keil K. 1989. Enstatite meteorites and their parent bodies. Meteoritics 24:195-208.
17. <0.5)S, in enstatite chondrite impact-melt rocks and impact-melt breccias. Chemie der Erde-Geochemistry 67:37-54.
18. Kimura M. 1988. Origin of opaque minerals in an unequilibrated enstatite chondrite Yamato-691. Proceedings of the NIPR Symposium on Antarctic Meteorites 1:51-64.
19. Kimura M., Weisberg M. K., Lin Y., Suzuki A., Ohtani O., and Okazaki R. 2005. Thermal history of the enstatite chondrites from silica polymorphs. Meteoritics & Planetary Science 40:855-868.
20. Kimura M., Grossman J. N., and Weisberg M. K. 2008. Fe-Ni metal in primitive chondrites: Indicators of classification and metamorphic conditions for ordinary and CO chondrites. Meteoritics & Planetary Science 43:1161-1177.
21. Leroux H., Libourel G., Lemelle L., and Guyot F. 2003. Experimental study and TEM characterization of dusty olivines in chondrites: Evidence for formation by in situ reduction. Meteoritics & Planetary Science 38:81-94.
22. Lin Y. and El Goresy A. 2002. A comparative study of opaque phases in Qingzhen (EH3) and MacAlpine Hills 88136 (EL3): Representatives of EH and EL parent bodies. Meteoritics & Planetary Science 37:577-599.
23. Lin Y. and Kimura M. 1998. Petrographic and mineralogical study of new EH melt rocks and a new enstatite chondrite grouplet. Meteoritics & Planetary Science 33:501-511.
24. Lin Y.-T., Nagel H.-J., Lundberg L. L., and El Goresy A. 1991. MAC 88136-The first EL3 chondrite (abstract). 22nd Lunar and Planetary Science Conference. pp. 811-812.
25. Maloy A. K. and Treiman A. H. 2007. Evaluation of image classification routines for determining modal mineralogy of rocks from X-ray maps. American Mineralogist 92:1781-1788.
26. McCoy T. J., Keil K., Bogard D. D., Garrison D. H., Casanova I., Lindstrom M. M., Brearley A. J., Kehm K., Nichols R. H. Jr., and Hohenberg C. M. 1995. Origin and history of impact-melt rocks of enstatite chondrite parentage. Geochimica et Cosmochimica Acta 59:161-175.
27. McCoy T. J., Dickinson T. L., and Lofgren G. E. 1999. Partial melting of the Indarch (EH4) meteorite: A textural, chemical and phase view of melting and melt migration. Meteoritics & Planetary Science 34:735-746.
28. Olsen E., Bunch T. E., Jarosewich E., Noonan A. F., and Huss G. I. 1977. Happy Canyon: A new type of enstatite chondrite. Meteoritics 12:109-123.
29. Patzer A., Hill D. H., and Boynton W. V. 2001. Itqiy: A metal-rich enstatite meteorite with achondritic texture. Meteoritics & Planetary Science 36:1495-1505.
30. Ringwood A. E. 1961. Silicon in the metal phase of enstatite chondrites and some geochemical implications. Geochimica et Cosmochimica Acta 25:1-13.
31. Rubin A. E. 1997. Igneous graphite in enstatite chondrites. Mineralogical Magazine 61:699-703.
32. Rubin A. E. and Scott E. R. D. 1997. Abee and related EH chondrite impact-melt breccias. Geochimica et Cosmochimica Acta 61:425-435.
33. Rubin A. E., Scott E. R. D., and Keil K. 1997. Shock metamorphism of enstatite chondrites. Geochimica et Cosmochimica Acta 61:847-858.
34. Rubin A. E., Huber H., and Wasson J. T. 2009. Possible impact-induced refractory-lithophile fractionations in EL chondrites. Geochimica et Cosmochimica Acta 73:1523-1537.
35. Samuels L. E. 1980. Optical microscopy of carbon steels. Metals Park, OH: American Society for Metals. 594 p.
36. Schneider D. M., Symes S. J. K., Benoit P. H., and Sears D. W. G. 2002. Properties of chondrules in EL3 chondrites, comparison with EH3 chondrites, and the implications for the formation of enstatite chondrites. Meteoritics & Planetary Science 37:1401-1416.
37. Sharp T. G. and DeCarli P. S. 2006. Shock effects in meteorites. In Meteorites and the early solar system II, edited by Lauretta D. S. and McSween H. Y. Tucson, AZ: The University of Arizona Press. pp. 653-677.
38. Skinner B. J. and Luce F. D. 1971. Solid solutions of the type (Ca, Mg, Mn, Fe)S and their use as geothermometers for the enstatite chondrites. American Mineralogist 56:1269-1296.
39. Spry A. 1969. Metamorphic textures. Oxford: Pergamon.
40. Stöffler D., Bischoff A., Buchwald B., and Rubin A. E. 1988. Shock effects in meteorites. In Meteorites and the early solar system, edited by Kerridge J. K. and Matthews M. C. Tucson, AZ: The University of Arizona Press. pp. 165-202.
41. Stöffler D., Keil K., and Scott E. R. D. 1991. Shock metamorphism of ordinary chondrites. Geochimica et Cosmochimica Acta 55:3845-3867.
42. Urey H. C. 1959. Primary and secondary objects. Journal of Geophysical Research 64:1721-1737.
43. Van Niekerk D. and Keil K. 2008. Possible impact-melt features in unequilibrated enstatite chondrites (abstract #2296). 39th Lunar and Planetary Science Conference. CD-ROM.
44. Van Niekerk D., Goodrich C. A., Taylor G. J., and Keil K. 2007. Characterization of the lithological contact in the shergottite Elephant Morraine A79001-A record of igneous differentiation processes on Mars. Meteoritics & Planetary Science 42:1751-1762.
45. Van Niekerk D., Huss G. R., and Keil K. 2008. Metal assemblages in EH3 meteorites (abstract). Meteoritics & Planetary Science 43:A161.
46. Weisberg M. K., Prinz M., and Fogel R. A. 1994. The evolution of enstatite and chondrules in unequilibrated enstatite chondrites: Evidence from iron-rich pyroxene. Meteoritics 29:362-373.
47. Weisberg M. K., Prinz M., and Nehru C. E. 1997a. QUE94204: An EH-chondritic melt rock. Proceedings, 28th Lunar and Planetary Science Conference. p. 1525.
48. Weisberg M. K., Fogel R. A., and Prinz M. 1997b. Kamacite-enstatite intergrowths in enstatite chondrites (abstract). 28th Lunar and Planetary Science Conference. pp. 1523-1524.
49. Weisberg M. K., Connolly H. C., Ebel D. S., and Kimura M. 2006. Sulfide-metal nodules in EH3 chondrites (abstract). Meteoritics & Planetary Science 41:A186.
50. Zhang Y., Benoit P. H., and Sears D. W. G. 1995. The classification and complex thermal history of the enstatite chondrites. Journal of Geophysical Research 100:9417-9438.