首页期刊导航 用户协会 博客
 精确匹配 高级检索 检索历史
详细信息

Characterization of Mukundpura carbonaceous chondrite.

Title: Characterization of Mukundpura carbonaceous chondrite.
Authors: Tripathi, R. P.1
Dixit, Ambesh2
Bhandari, N.3 nnbhandari@yahoo.com
Source: Current Science (00113891). 1/10/2018, Vol. 114 Issue 1, p214-217. 4p.
Document Type: Article
Subject Terms: CARBONACEOUS chondrites (Meteorites)
METEORITE analysis
SPECTRUM analysis
MOSSBAUER spectroscopy
THERMOGRAVIMETRY
Geographic Terms: KOUE Bokkeveld (South Africa : Plateau)
Author-Supplied Keywords: Carbonaceous chondrite ; chemical composition ; meteorite fragments ; spectral analysis
Abstract: Two meteorite fragments collected from the Mukundpura impact site, Rajasthan, India have been analysed using scanning electron microscopy, energy dispersive X-ray spectroscopy, Mössbauer spectroscopy, thermogravimetric analysis (TGA) and Raman spectroscopy. High Fe (22.65 wt%), Ni (1.53%) and S (3.69%) and concentrations of other elements obtained by X-ray analysis indicate that it is a carbonaceous chondrite. Mössbauer spectra show similarity with those obtained from Cold Bokkeveld and Murchison carbonaceous chondrites, and this analogy allows us to classify it as belonging to CM group of carbonaceous chondrites. TGA shows large weight loss, implying presence of significant amount of volatiles in this meteorite and Raman spectroscopy shows the presence of abundant organic matter consisting of disordered and aromatic (graphitic or polyaromatic) carbon. These results indicate that Mukundpura meteorite is a rare type of extraterrestrial object deserving further in-depth studies. [ABSTRACT FROM AUTHOR]
(Copyright applies to all Abstracts.)
Author Affiliations: 178, BGT Extension, Jodhpur 342 005, India ; 2Department of Physics, Indian Institute of Technology, Jodhpur 342 005, India ; 3Basic Sciences Research Institute, Navrangpura, Ahmedabad 380 009, India
ISSN: 0011-3891 (Sherpa/RoMEO, JCR)
PageCount: 214-218
volume: 114
issue: 1
issn: 00113891
pubdate: 2018
DOI: https://doi.org/10.18520/cs/v114/i01/214-217
JCR分区:
ESI学科:
最新一年影响因子:
当年影响因子: