The bulk mineralogy, elemental composition, and water content of the Winchcombe CM chondrite fall
The bulk mineralogy, elemental composition, and water content of the Winchcombe CM chondrite fall
复制标题
Winchcombe CM 球粒陨石坠落的整体矿物学、元素组成和含水量
DOI:
10.1111/maps.14043
复制
发表时间:
2023
影响因子:
2.2
通讯作者:
Bates H
中科院分区:
文献类型:
--
作者:
Bates H
On the microscale, the Winchcombe CM carbonaceous chondrite contains a number of lithological units with a variety of degrees of aqueous alteration. However, an understanding of the average hydration state is useful when comparing to other meteorites and remote observations of airless bodies. We report correlated bulk analyses on multiple subsamples of the Winchcombe meteorite, determining an average phyllosilicate fraction petrologic type of 1.2 and an average water content of 11.9 wt%. We show the elemental composition and distribution of iron and iron oxidation state are consistent with measurements from other CM chondrites; however, Winchcombe shows a low Hg concentration of 58.1 ± 0.5 ng g−1. We demonstrate that infrared reflectance spectra of Winchcombe are consistent with its bulk modal mineralogy, and comparable to other CM chondrites with similar average petrologic types. Finally, we also evaluate whether spectral parameters can estimate H/Si ratios and water abundances, finding generally spectral parameters underestimate water abundance compared to measured values.
登录
查看更多内容
DOI:
--
发表时间:
1979
期刊:
影响因子:
--
作者:
C. Blaauw;G. Stroink;W. Leiper;M. Zentilli
通讯作者:
M. Zentilli
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
N. Chistyakova;V. Rusakov;T. V. Gubaidulina;S. Kozerenko
通讯作者:
S. Kozerenko
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
R. Burns;D. S. Fisher
通讯作者:
D. S. Fisher
影响因子:
5
作者:
King, A. J.;Schofield, P. F.;Russell, S. S.
通讯作者:
Russell, S. S.
影响因子:
2.2
作者:
King A
通讯作者:
King A