scholarly journals Clasts in the CM 2 carbonaceous chondrite Lonewolf Nunataks 94101: Evidence for aqueous alteration prior to complex mixing

2013 ◽  
Vol 48 (6) ◽  
pp. 1074-1090 ◽  
Author(s):  
Paula Lindgren ◽  
Martin R. Lee ◽  
Mahmood R. Sofe ◽  
Michael E. Zolensky
Keyword(s):  
Carbonaceous Chondrite ◽  
Aqueous Alteration

Aqueous alteration in the Kaba CV3 carbonaceous chondrite

1990 ◽  
Vol 54 (7) ◽  
pp. 2113-2120 ◽  
Author(s):  
Lindsay P Keller ◽  
Peter R Buseck
Keyword(s):  
Carbonaceous Chondrite ◽  
Aqueous Alteration

Aqueous alteration of opaque assemblages in the Ningqiang carbonaceous chondrite: Evidence from oxygen isotopes

2006 ◽  
Vol 243 (1-2) ◽  
pp. 107-114 ◽  
Author(s):  
W HSU ◽  
Y GUAN ◽  
X HUA ◽  
Y WANG ◽  
L LESHIN ◽  
...  
Keyword(s):  
Oxygen Isotopes ◽  
Carbonaceous Chondrite ◽  
Aqueous Alteration

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.

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