Rb-Sr and Sm-Nd Ages of Zagami DML and SR Isotopic Heterogeneity in Zagami

Zagami contains lithologic heterogeneity suggesting that it did not form in a homogeneous, thick lava flow [1]. We have previously investigated the Sr and Nd isotopic systematics of Coarse-Grained (CG) and Fine-Grained (FG) lithologies described by [2]. Both appear to belong to Normal Zagami (NZ) [1...

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Main Authors: Reese, Y. D., Shih, C.-Y., Nyquist, L.aurenceE.
Format: Other/Unknown Material
Language:unknown
Published: 2010
Subjects:
Geosciences (General)
DML
Online Access:http://hdl.handle.net/2060/20100023423
id ftnasantrs:oai:casi.ntrs.nasa.gov:20100023423
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:20100023423 2023-05-15T16:01:28+02:00 Rb-Sr and Sm-Nd Ages of Zagami DML and SR Isotopic Heterogeneity in Zagami Reese, Y. D. Shih, C.-Y. Nyquist, L.aurenceE. Unclassified, Unlimited, Publicly available June 26, 2010 application/pdf http://hdl.handle.net/2060/20100023423 unknown Document ID: 20100023423 http://hdl.handle.net/2060/20100023423 Copyright, Distribution as joint owner in the copyright CASI Geosciences (General) JSC-CN-20835 73rd Annual Meeting of the Meteoritical Society; 26-30 Jun. 2010; New York, NY; United States 2010 ftnasantrs 2019-07-21T01:14:04Z Zagami contains lithologic heterogeneity suggesting that it did not form in a homogeneous, thick lava flow [1]. We have previously investigated the Sr and Nd isotopic systematics of Coarse-Grained (CG) and Fine-Grained (FG) lithologies described by [2]. Both appear to belong to Normal Zagami (NZ) [1,3], but their initial Sr-isotopic compositions differ [4,5]. Here we report new analyses of the Dark Mottled Lithology (DML, [3]) that show its age and initial Sr and Nd isotopic compositions to be identical within error limits with those of CG, but Sr initial isotopic compositions differ from those of FG. Other/Unknown Material DML NASA Technical Reports Server (NTRS)
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic Geosciences (General)
spellingShingle Geosciences (General)
Reese, Y. D.
Shih, C.-Y.
Nyquist, L.aurenceE.
Rb-Sr and Sm-Nd Ages of Zagami DML and SR Isotopic Heterogeneity in Zagami
topic_facet Geosciences (General)
description Zagami contains lithologic heterogeneity suggesting that it did not form in a homogeneous, thick lava flow [1]. We have previously investigated the Sr and Nd isotopic systematics of Coarse-Grained (CG) and Fine-Grained (FG) lithologies described by [2]. Both appear to belong to Normal Zagami (NZ) [1,3], but their initial Sr-isotopic compositions differ [4,5]. Here we report new analyses of the Dark Mottled Lithology (DML, [3]) that show its age and initial Sr and Nd isotopic compositions to be identical within error limits with those of CG, but Sr initial isotopic compositions differ from those of FG.
format Other/Unknown Material
author Reese, Y. D.
Shih, C.-Y.
Nyquist, L.aurenceE.
author_facet Reese, Y. D.
Shih, C.-Y.
Nyquist, L.aurenceE.
author_sort Reese, Y. D.
title Rb-Sr and Sm-Nd Ages of Zagami DML and SR Isotopic Heterogeneity in Zagami
title_short Rb-Sr and Sm-Nd Ages of Zagami DML and SR Isotopic Heterogeneity in Zagami
title_full Rb-Sr and Sm-Nd Ages of Zagami DML and SR Isotopic Heterogeneity in Zagami
title_fullStr Rb-Sr and Sm-Nd Ages of Zagami DML and SR Isotopic Heterogeneity in Zagami
title_full_unstemmed Rb-Sr and Sm-Nd Ages of Zagami DML and SR Isotopic Heterogeneity in Zagami
title_sort rb-sr and sm-nd ages of zagami dml and sr isotopic heterogeneity in zagami
publishDate 2010
url http://hdl.handle.net/2060/20100023423
op_coverage Unclassified, Unlimited, Publicly available
genre DML
genre_facet DML
op_source CASI
op_relation Document ID: 20100023423
http://hdl.handle.net/2060/20100023423
op_rights Copyright, Distribution as joint owner in the copyright
_version_ 1766397306559528960

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