Evidence for a widespread basaltic breccia component in the martian low-albedo regions from the reflectance spectrum of Northwest Africa 7034

被引：23
作者：
Cannon, Kevin M. [1 ]
Mustard, John F. [1 ]
Agee, Carl B. [2 ,3 ]
机构：
[1] Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02903 USA
[2] Univ New Mexico, Inst Meteorit, Albuquerque, NM 87131 USA
[3] Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA
来源：
ICARUS | 2015年 / 252卷
关键词：
Mars; surface; Spectroscopy; Regoliths; Meteorites; MARS; SURFACE; METEORITES; PARTICLES; CRUST;
D O I：
10.1016/j.icarus.2015.01.016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Northwest Africa (NWA) 7034 is the first breccia meteorite from Mars, and unlike the shergottite, nakhlite, and chassignite (SNC) martian meteorites, it matches the estimated chemical composition of martian crust. Here we show that the visible-infrared reflectance spectrum of NWA 7034 is unique compared to other SNCs and is more similar than them to remotely sensed data from Mars, suggesting the martian regolith may contain significant brecciated material produced during heavy bombardment of the crust. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码：150 / 153
页数：4
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