Mineralogy of chondritic porous aggregates : current status
McKay, David S., Rietmeijer, Frans J.M., & Mackinnon, Ian D.R. (1985) Mineralogy of chondritic porous aggregates : current status. In Lunar and Planetary Science Conference, Lunar and Planetary Institute, Houston, TX, pp. 536-537.
Chondritic porous aggregates (CPA's) belong to an important subset of small particles (usually between 5 and 50 micrometers) collected from the stratosphere by high flying aircraft. These aggregates are approximately chondritic in elemental abundance and are composed of many thousands of smaller, submicrometer particles. CPA particles have been the subject of intensive study during the past few years [1-3] and there is strong evidence that they are a new class of extraterrestrial material not represented in the meteorite collection [3,4]. However, CPA's may be related to carbonaceous chondrites and in fact, both may be part of a continuum of primitive extraterrestrial materials . The importance of CPA's stems from suggestions that they are very primitive solar system material possibly derived from early formed proto planets, chondritic parent bodies, or comets [3, 6]. To better understand the origin and evolution of these particles, we have attempted to summarize all of the mineralogical data on identified CPA's published since about 1976.
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|Item Type:||Conference Paper|
|Additional Information:||GeoRef, Copyright 2009, American Geological Institute.
|Keywords:||aggregate, atmosphere, characterization, meteoroids, mineral composition, particulate materials, porous materials, sampling, stratosphere|
|Subjects:||Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Tropospheric and Stratospheric Physics (040108)
Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > GEOLOGY (040300) > Extraterrestrial Geology (040302)
Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > GEOLOGY (040300) > Mineralogy and Crystallography (040306)
|Divisions:||Current > Institutes > Institute for Future Environments|
|Copyright Owner:||Copyright 1985 (please consult the authors).|
|Deposited On:||30 Jan 2013 22:42|
|Last Modified:||10 Apr 2013 16:52|
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