Morlock, A.; Sutton, Y. C.; Patel, M.; Braithwaite, N. St. J and Grady, M. M.
(2011).
| URL: | http://www.lpi.usra.edu/meetings/metsoc2011/pdf/53... |
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| Google Scholar: | Look up in Google Scholar |
Abstract
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 [1] or nebular shock fronts, where precursor grains are heated by collisions with gas [2]. Most chondrules probably have been heated to 1500–1600 ºC, followed by a cooling rate of usually between 10 to 1000 ºC/h [3]. 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[4]. 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 [5]. 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) |
| Related URLs: | |
| Item ID: | 31263 |
| Depositing User: | Manish Patel |
| Date Deposited: | 12 Jan 2012 09:54 |
| Last Modified: | 16 Nov 2012 14:06 |
| URI: | http://oro.open.ac.uk/id/eprint/31263 |
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