Light hydrocarbon gases, C13, and origin of organic matter in carbonaceous chondrites

Light hydrocarbon gases, C13, and origin of organic matter in carbonaceous chondrites
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轻烃气体、C13 和碳质球粒陨石中有机物的来源

DOI:
10.1016/0016-7037(70)90105-5
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发表时间:
1970
影响因子:
5
通讯作者:
I. Kaplan
I. Kaplan
中科院分区:
地球科学1区
文献类型:
--
作者:
T. Belsky;I. Kaplan

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轻烃气体的分析进行了11陨石,包括8个碳质陨石,以及陆地沉积物;检测和鉴定进行了气相色谱法。鉴定出C1 ~ C6的化合物。在所研究的不同陨石中,化合物的分布是不同的,饱和和不饱和烃都被检测到,苯通常是相对较少的组分。对陨石碳总量的δ C13测量表明,数据可能分为三组:低于-20 ‰的值是普通陨石的特征;在-7和-20 ‰之间的值代表碳质陨石;在-6 ‰左右的值代表石墨碳。结果表明,碳组分之间尚未达到平衡。
Analyses for light hydrocarbon gases were carried out on eleven meteorites, including eight carbonaceous chondrites, as well as on terrestrial sediments; detection and identification were performed by gas chromatography. Compounds ranging from C1to C6were identified. The distribution of compounds was different in the different meteorites studied, both saturated and unsaturated hydrocarbons were detected, and benzene was generally a relatively minor component. It was concluded that the trace constituents identified were present as gases trapped between crystal boundaries, and were not artifacts produced in the course of the analytical work.δC13measurements on total meteoritic carbon indicate three possible groupings of the data: values falling below −20‰ characteristic of the ordinary chondrites; values between −7 and −20‰ representing carbonaceous chondrites; and values at about −6‰ representing graphitic carbon.The results imply that equilibrium among the carbon constituents has not been attained.
DOI: 10.1126/science.117.3046.528
发表时间: 1953-01-01
期刊: SCIENCE
影响因子: 56.9
作者:
MILLER, SL
通讯作者: MILLER, SL