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Title	Chinguetti - terrestrial age and pre-atmospheric size
Creator/Author	Welten, K C ; Masarik, J ; Bland, P A ; Caffee, M W ; Russell, S S ; Grady, M M ; Denyer, I ; Lloyd, J
Publication Date	2000 Jan 14
OSTI Identifier	OSTI ID: 756736
Report Number(s)	UCRL-JC-137140
DOE Contract Number	W-7405-ENG-48
Other Number(s)	TRN: AH200021%%419
Resource Type	Conference
Resource Relation	Conference: 31st Lunar and Planetary Science Conference, Houston, TX (US), 03/13/2000--03/17/2000; Other Information: PBD: 14 Jan 2000
Research Org	Lawrence Livermore National Lab., CA (US)
Sponsoring Org	USDOE Office of Defense Programs (DP) (US)
Subject	71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; METEORITES; AGE ESTIMATION; SIZE; EROSION; ISOTOPE RATIO; CHEMICAL COMPOSITION
Description/Abstract	Chinguetti is a 4.5 kg mesosiderite find recovered from the Adra region of Mauretania. In this paper the authors analyse a portion of the recovered sample for cosmogenic radionuclides to determine its terrestrial age, and to determine its pre-atmospheric radius. They determined the terrestrial age of Chinguetti to be < 30 ky. They constrain the pre-atmospheric radius to 50--80 cm and the shielding depths of 15--25 cm. These data indicate that Chinguetti is a comparatively recent fall.
Country of Publication	United States
Language	English
Format	Size: 36 Kilobytes pages
System Entry Date	2007 Nov 30
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