scholarly journals Cathodoluminescence microscopy and spectroscopy of forsterite from Kaba meteorite: An application to the study of hydrothermal alteration of parent body

2013 ◽  
Vol 48 (12) ◽  
pp. 2577-2596 ◽  
Author(s):  
Arnold Gucsik ◽  
Taro Endo ◽  
Hirotsugu Nishido ◽  
Kiyotaka Ninagawa ◽  
Masahiro Kayama ◽  
...  
Keyword(s):  
Hydrothermal Alteration ◽  
Parent Body

Bright carbonate veins on asteroid (101955) Bennu: Implications for aqueous alteration history

Science ◽  
2020 ◽  
Vol 370 (6517) ◽  
pp. eabc3557 ◽  
Author(s):  
H. H. Kaplan ◽  
D. S. Lauretta ◽  
A. A. Simon ◽  
V. E. Hamilton ◽  
D. N. DellaGiustina ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Solar System ◽  
Hydrothermal Alteration ◽  
Large Scale ◽  
Carbonaceous Chondrite ◽  
Parent Body ◽  
Early Solar System ◽  
Aqueous Alteration ◽  
Insight Into ◽  
Geologic Processes

The composition of asteroids and their connection to meteorites provide insight into geologic processes that occurred in the early Solar System. We present spectra of the Nightingale crater region on near-Earth asteroid Bennu with a distinct infrared absorption around 3.4 micrometers. Corresponding images of boulders show centimeters-thick, roughly meter-long bright veins. We interpret the veins as being composed of carbonates, similar to those found in aqueously altered carbonaceous chondrite meteorites. If the veins on Bennu are carbonates, fluid flow and hydrothermal deposition on Bennu’s parent body would have occurred on kilometer scales for thousands to millions of years. This suggests large-scale, open-system hydrothermal alteration of carbonaceous asteroids in the early Solar System.

Tracing the earliest stages of hydrothermal alteration on the CM chondrite parent body

2021 ◽  
Author(s):  
A. J. King ◽  
E. Mason ◽  
H. C. Bates ◽  
P. F. Schofield ◽  
K. L. Donaldson Hanna ◽  
...  
Keyword(s):  
Hydrothermal Alteration ◽  
Parent Body ◽  
Cm Chondrite

Detection of slip surface in earth slide based on mineral assemblages -An example of hydrothermal alteration zone landslide in East Hokkaido Japan-

2014 ◽  
Vol 51 (3) ◽  
pp. 106-112
Author(s):  
Hiroyuki MAEDA ◽  
Masanori KOHNO ◽  
Yoshihiko SEKISHITA ◽  
Satoshi UEMATSU ◽  
Hiroshi NAYA
Keyword(s):  
Hydrothermal Alteration ◽  
Slip Surface ◽  
Alteration Zone ◽  
Mineral Assemblages
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