Title

Infrared Imaging Spectroscopy With Micron Resolution Of Sutter'S Mill Meteorite Grains

Abstract

Synchrotron-based Fourier transform infrared spectroscopy and Raman spectroscopy are applied with submicrometer spatial resolution to multiple grains of Sutter's Mill meteorite, a regolith breccia with CM1 and CM2 lithologies. The Raman and infrared active functional groups reveal the nature and distribution of organic and mineral components and confirm that SM12 reached higher metamorphism temperatures than SM2. The spatial distributions of carbonates and organic matter are negatively correlated. The spatial distributions of aliphatic organic matter and OH relative to the distributions of silicates in SM2 differ from those in SM12, supporting a hypothesis that the parent body of Sutter's Mill is a combination of multiple bodies with different origins. The high aliphatic CH2/CH3 ratios determined from band intensities for SM2 and SM12 grains are similar to those of IDPs and less altered carbonaceous chondrites, and they are significantly higher than those in other CM chondrites and diffuse ISM objects.

Publication Date

11-1-2014

Publication Title

Meteoritics and Planetary Science

Volume

49

Issue

11

Number of Pages

2027-2037

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/maps.12321

Socpus ID

84927517484 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84927517484

This document is currently not available here.

Share

COinS