Geochronological and lead-isotope evidences for rapid crust formation in middle-proterozoic time: The Labrador example

Extensive U-Pb geochronological studies in the Grenville and Makkovik provinces have shown that eastern Labrador is underlain by two distinct crustal blocks. In order to substantiate the juvenile character of the middle-Proterozoic crustal block, the isotopic compositon of lead in leached k-feldspar...

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Main Author: Schaerer, Urs
Format: Other/Unknown Material
Language:unknown
Published: 1988
Subjects:
46
Makkovik
Online Access:http://ntrs.nasa.gov/search.jsp?R=19880020855
id ftnasantrs:oai:casi.ntrs.nasa.gov:19880020855
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19880020855 2023-05-15T17:10:03+02:00 Geochronological and lead-isotope evidences for rapid crust formation in middle-proterozoic time: The Labrador example Schaerer, Urs Unclassified, Unlimited, Publicly available JAN 1, 1988 http://ntrs.nasa.gov/search.jsp?R=19880020855 unknown http://ntrs.nasa.gov/search.jsp?R=19880020855 Accession ID: 88N30239 No Copyright CASI 46 Lunar and Planetary Inst., Workshop on the Growth of Continental Crust; p 127-130 1988 ftnasantrs 2012-02-15T17:28:16Z Extensive U-Pb geochronological studies in the Grenville and Makkovik provinces have shown that eastern Labrador is underlain by two distinct crustal blocks. In order to substantiate the juvenile character of the middle-Proterozoic crustal block, the isotopic compositon of lead in leached k-feldspars from the same rocks were analyzed. The results of the analysis are briefly discussed. Other/Unknown Material Makkovik NASA Technical Reports Server (NTRS) Makkovik ENVELOPE(-59.178,-59.178,55.087,55.087)
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 46
spellingShingle 46
Schaerer, Urs
Geochronological and lead-isotope evidences for rapid crust formation in middle-proterozoic time: The Labrador example
topic_facet 46
description Extensive U-Pb geochronological studies in the Grenville and Makkovik provinces have shown that eastern Labrador is underlain by two distinct crustal blocks. In order to substantiate the juvenile character of the middle-Proterozoic crustal block, the isotopic compositon of lead in leached k-feldspars from the same rocks were analyzed. The results of the analysis are briefly discussed.
format Other/Unknown Material
author Schaerer, Urs
author_facet Schaerer, Urs
author_sort Schaerer, Urs
title Geochronological and lead-isotope evidences for rapid crust formation in middle-proterozoic time: The Labrador example
title_short Geochronological and lead-isotope evidences for rapid crust formation in middle-proterozoic time: The Labrador example
title_full Geochronological and lead-isotope evidences for rapid crust formation in middle-proterozoic time: The Labrador example
title_fullStr Geochronological and lead-isotope evidences for rapid crust formation in middle-proterozoic time: The Labrador example
title_full_unstemmed Geochronological and lead-isotope evidences for rapid crust formation in middle-proterozoic time: The Labrador example
title_sort geochronological and lead-isotope evidences for rapid crust formation in middle-proterozoic time: the labrador example
publishDate 1988
url http://ntrs.nasa.gov/search.jsp?R=19880020855
op_coverage Unclassified, Unlimited, Publicly available
long_lat ENVELOPE(-59.178,-59.178,55.087,55.087)
geographic Makkovik
geographic_facet Makkovik
genre Makkovik
genre_facet Makkovik
op_source CASI
op_relation http://ntrs.nasa.gov/search.jsp?R=19880020855
Accession ID: 88N30239
op_rights No Copyright
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