Sm-Nd age of the Fiskenaesset Anorthosite Complex, West Greenland
A Sm-Nd isotopic study on samples from the Fiskenaesset Anorthosite Complex in West Greenland was conducted to estimate the age of crystallization of the complex. A five-point isochron, including data for whole-rock samples of anorthosite, metagabbro, metaperidotite, and separates of calcic plagiocl...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19890042932 2023-05-15T16:26:34+02:00 Sm-Nd age of the Fiskenaesset Anorthosite Complex, West Greenland Ashwal, Lewis D. Goldstein, Steven J. Jacobsen, Stein B. Myers, John S. Kalsbeek, Feiko Unclassified, Unlimited, Publicly available Jan 1, 1989 http://ntrs.nasa.gov/search.jsp?R=19890042932 unknown http://ntrs.nasa.gov/search.jsp?R=19890042932 Accession ID: 89A30303 Copyright Other Sources 46 Earth and Planetary Science Letters; 91; 3-4 1989 ftnasantrs 2012-02-15T18:00:55Z A Sm-Nd isotopic study on samples from the Fiskenaesset Anorthosite Complex in West Greenland was conducted to estimate the age of crystallization of the complex. A five-point isochron, including data for whole-rock samples of anorthosite, metagabbro, metaperidotite, and separates of calcic plagioclase and mafic matrix from a coarse megacrystic leucogabbro, corresponds to an age of 2.86 + or - 0.05 Ga, with initial sigma(Nd) of +2.9 + or - 0.4. This implies a relatively short time interval, on the order of 70 Ma, during which anorthosite formation, tonalite emplacement, and high-grade metamorphism took place. Other/Unknown Material Greenland NASA Technical Reports Server (NTRS) Greenland |
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NASA Technical Reports Server (NTRS) |
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46 Ashwal, Lewis D. Goldstein, Steven J. Jacobsen, Stein B. Myers, John S. Kalsbeek, Feiko Sm-Nd age of the Fiskenaesset Anorthosite Complex, West Greenland |
topic_facet |
46 |
description |
A Sm-Nd isotopic study on samples from the Fiskenaesset Anorthosite Complex in West Greenland was conducted to estimate the age of crystallization of the complex. A five-point isochron, including data for whole-rock samples of anorthosite, metagabbro, metaperidotite, and separates of calcic plagioclase and mafic matrix from a coarse megacrystic leucogabbro, corresponds to an age of 2.86 + or - 0.05 Ga, with initial sigma(Nd) of +2.9 + or - 0.4. This implies a relatively short time interval, on the order of 70 Ma, during which anorthosite formation, tonalite emplacement, and high-grade metamorphism took place. |
format |
Other/Unknown Material |
author |
Ashwal, Lewis D. Goldstein, Steven J. Jacobsen, Stein B. Myers, John S. Kalsbeek, Feiko |
author_facet |
Ashwal, Lewis D. Goldstein, Steven J. Jacobsen, Stein B. Myers, John S. Kalsbeek, Feiko |
author_sort |
Ashwal, Lewis D. |
title |
Sm-Nd age of the Fiskenaesset Anorthosite Complex, West Greenland |
title_short |
Sm-Nd age of the Fiskenaesset Anorthosite Complex, West Greenland |
title_full |
Sm-Nd age of the Fiskenaesset Anorthosite Complex, West Greenland |
title_fullStr |
Sm-Nd age of the Fiskenaesset Anorthosite Complex, West Greenland |
title_full_unstemmed |
Sm-Nd age of the Fiskenaesset Anorthosite Complex, West Greenland |
title_sort |
sm-nd age of the fiskenaesset anorthosite complex, west greenland |
publishDate |
1989 |
url |
http://ntrs.nasa.gov/search.jsp?R=19890042932 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19890042932 Accession ID: 89A30303 |
op_rights |
Copyright |
_version_ |
1766015491022782464 |