Morlock, A.; Sutton, Y. C.; Patel, M.; Braithwaite, N. St. J and Grady, M. M.
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The exact process of chondrule formation is still not known. The most common scenarios are formation in a protoplanetary nebular environment: e.g. X-wind model  or nebular shock fronts, where precursor grains are heated by collisions with gas . Most chondrules probably have been heated to 1500–1600 ºC, followed by a cooling rate of usually between 10 to 1000 ºC/h . In this part of our study about the formation of chondrules by shock processes, we try to simulate the formation of chondrules by gas-grain collisions in a nebular environment.
Earlier, related studies usually did not result in chondrulelike objects. In a first series of experiments using plasma arcs, we produced successfully spherical silicate droplets in a simple set-up under atmospheric conditions. These chondrule-like objects already show similarities to actual chondrules . In a second series, the experiments take place in an environment closer to the earlier solar nebula, at low pressure and a reducing environment.
|Item Type:||Conference Item|
|Copyright Holders:||2011 LPI|
|Academic Unit/Department:||Science > Physical Sciences
Mathematics, Computing and Technology > Design, Development, Environment and Materials
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||Manish Patel|
|Date Deposited:||12 Jan 2012 09:54|
|Last Modified:||16 Nov 2012 14:06|
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