DOI: 10.1002/2017JE005435
Scopus记录号: 2-s2.0-85042524888
论文题名: Mineralogical Diversity and Geology of Humboldt Crater Derived Using Moon Mineralogy Mapper Data
作者: Martinot M. ; Besse S. ; Flahaut J. ; Quantin-Nataf C. ; Lozac'h L. ; vanWestrenen W.
刊名: Journal of Geophysical Research: Planets
ISSN: 21699097
出版年: 2018
卷: 123, 期: 2 起始页码: 612
结束页码: 629
语种: 英语
英文关键词: central peak complex
; geological map
; Humboldt crater
; mineralogy
; Moon Mineralogy Mapper
英文摘要: Moon Mineralogy Mapper (M3) spectroscopic data and high-resolution imagery data sets were used to study the mineralogy and geology of the 207 km diameter Humboldt crater. Analyses of M3 data, using a custom-made method for M3 spectra continuum removal and spectral parameters calculation, reveal multiple pure crystalline plagioclase detections within the Humboldt crater central peak complex, hinting at its crustal origin. However, olivine, spinel, and glass are observed in the crater walls and rims, suggesting these minerals derive from shallower levels than the plagioclase of the central peak complex. High-calcium pyroxenes are detected in association with volcanic deposits emplaced on the crater's floor. Geologic mapping was performed, and the age of Humboldt crater's units was estimated from crater counts. Results suggest that volcanic activity within this floor-fractured crater spanned over a billion years. The felsic mineralogy of the central peak complex region, which presumably excavated deeper material, and the shallow mafic minerals (olivine and spinel) detected in Humboldt crater walls and rim are not in accordance with the general view of the structure of the lunar crust. Our observations can be explained by the presence of a mafic pluton emplaced in the anorthositic crust prior to the Humboldt-forming impact event. Alternatively, the excavation of Australe basin ejecta could explain the observed mineralogical detections. This highlights the importance of detailed combined mineralogical and geological remote sensing studies to assess the heterogeneity of the lunar crust. ©2017. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114499
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, Netherlands; Université Lyon 1, ENS-Lyon, CNRS, UMR 5276 LGL-TPE, Villeurbanne, France; European Space Astronomy Centre, Madrid, Spain; Institut de Recherche en Astrophysique et Planétologie, CNRS/UMR 5277, Université Paul Sabatier, Toulouse, France
Recommended Citation:
Martinot M.,Besse S.,Flahaut J.,et al. Mineralogical Diversity and Geology of Humboldt Crater Derived Using Moon Mineralogy Mapper Data[J]. Journal of Geophysical Research: Planets,2018-01-01,123(2)