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Title Compositional studies of type 3 chondritic meteorites
Creator/Author Weeks, K.S.
Publication Date1985 Jan 01
OSTI IdentifierOSTI ID: 5003832
Resource TypeThesis/Dissertation
Resource RelationThesis (Ph. D.)
Research OrgArkansas Univ., Fayetteville, AR (USA)
Subject651100 -- Nuclear Physics-- Experimental Techniques-- (1980-) ;640100 -- Astrophysics & Cosmology ;653003 -- Nuclear Theory-- Nuclear Reactions & Scattering ;640101 -- Astrophysics & Cosmology-- Cosmic Radiation; METEORITES-- CHEMICAL COMPOSITION; ACTIVATION ANALYSIS;CALCULATION METHODS;DATA ANALYSIS;EXPERIMENTAL DATA;MEASURING INSTRUMENTS;MEASURING METHODS
Related SubjectCHEMICAL ANALYSIS;DATA;INFORMATION;NUMERICAL DATA
Description/Abstract Instrumental Neutron Activation Analysis (INAA) has been performed on 3 type 3 enstatite chondrites, 2 equilibrated enstatite chondrites, 1 type 3 carbonaceous chondrite, 38 type 3 ordinary chondrites, and 15 equilibrated ordinary chondrites.^Additionally, a thermoluminescence study was performed on 15 of the type 3 ordinary chondrites.^Type 3 chondrites are aggregates of the most primitive material in the solar system and it has been postulated that such material is the precursor to the other planetary objects, in particular, the equilibrated chondrites.^This study was made in order to provide some insight into the formation and origin of chondritic meteorites, and the relationship between the type 3 chondrites and the more abundant equilibrated chondrites.^The type 3 enstatite chondrites plot with the equilibrated EH chondrites, or at the low end of the EH range.^Therefore it is concluded that the type 3 enstatite chondrites are EH chondrites that equilibrated at lower temperatures than the type 4-6 enstatite chondrites.^Of the two equilibrated enstatite chondrites analyzed, RKPA 80259 was determined to be EL5 chondrite which provides evidence for a dual genetic sequence (EH3-5 and EL5-6) analogous to the three sequences formed by the ordinary chondrite classes, H, L, and LL.^The Colony meteorite is one of the least metamorphosed CO3 carbonaceous chondrites which exhibits compositional variations not previously recognized in normal CO3 chondrites.
PublisherFayetteville, AR (US) ;Univ. of Arkansas
Country of PublicationUnited States
LanguageEnglish
FormatPages: (194 p)
AvailabilityUniversity Microfilms, PO Box 1764, Ann Arbor, MI 48106, Order No.86-18,081
System Entry Date2001 May 13

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