Evolution of the continental crust
The continental crust covers nearly a third of the Earth's surface. It is buoyant - being less dense than the crust under the surrounding oceans - and is compositionally evolved, dominating the Earth's budget for those elements that preferentially partition into silicate liquid during mant...
Published in: | Nature |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2006
|
Subjects: | |
Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/evolution-of-the-continental-crust(8e54c788-8c00-4d69-85cb-78db7e087e48).html https://doi.org/10.1038/nature05191 http://www.scopus.com/inward/record.url?scp=33750283219&partnerID=8YFLogxK |
id |
ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/8e54c788-8c00-4d69-85cb-78db7e087e48 |
---|---|
record_format |
openpolar |
spelling |
ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/8e54c788-8c00-4d69-85cb-78db7e087e48 2024-06-23T07:53:21+00:00 Evolution of the continental crust Hawkesworth, Christopher John Kemp, AIS 2006-10-19 https://research-portal.st-andrews.ac.uk/en/researchoutput/evolution-of-the-continental-crust(8e54c788-8c00-4d69-85cb-78db7e087e48).html https://doi.org/10.1038/nature05191 http://www.scopus.com/inward/record.url?scp=33750283219&partnerID=8YFLogxK eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/evolution-of-the-continental-crust(8e54c788-8c00-4d69-85cb-78db7e087e48).html info:eu-repo/semantics/restrictedAccess Hawkesworth , C J & Kemp , AIS 2006 , ' Evolution of the continental crust ' , Nature , vol. 443 , no. 7113 , pp. 811-817 . https://doi.org/10.1038/nature05191 HF-ISOTOPE EVIDENCE DETRITAL ZIRCONS DEPLETED MANTLE U-PB NEODYMIUM ISOTOPES SUBDUCTION ZONES OXYGEN ISOTOPES WEST GREENLAND GROWTH HAFNIUM article 2006 ftunstandrewcris https://doi.org/10.1038/nature05191 2024-06-13T00:22:24Z The continental crust covers nearly a third of the Earth's surface. It is buoyant - being less dense than the crust under the surrounding oceans - and is compositionally evolved, dominating the Earth's budget for those elements that preferentially partition into silicate liquid during mantle melting. Models for the differentiation of the continental crust can provide insights into how and when it was formed, and can be used to show that the composition of the basaltic protolith to the continental crust is similar to that of the average lower crust. From the late Archaean to late Proterozoic eras ( some 3 - 1 billion years ago), much of the continental crust appears to have been generated in pulses of relatively rapid growth. Reconciling the sedimentary and igneous records for crustal evolution indicates that it may take up to one billion years for new crust to dominate the sedimentary record. Combining models for the differentiation of the crust and the residence time of elements in the upper crust indicates that the average rate of crust formation is some 2 - 3 times higher than most previous estimates. Article in Journal/Newspaper Greenland University of St Andrews: Research Portal Greenland Nature 443 7113 811 817 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
HF-ISOTOPE EVIDENCE DETRITAL ZIRCONS DEPLETED MANTLE U-PB NEODYMIUM ISOTOPES SUBDUCTION ZONES OXYGEN ISOTOPES WEST GREENLAND GROWTH HAFNIUM |
spellingShingle |
HF-ISOTOPE EVIDENCE DETRITAL ZIRCONS DEPLETED MANTLE U-PB NEODYMIUM ISOTOPES SUBDUCTION ZONES OXYGEN ISOTOPES WEST GREENLAND GROWTH HAFNIUM Hawkesworth, Christopher John Kemp, AIS Evolution of the continental crust |
topic_facet |
HF-ISOTOPE EVIDENCE DETRITAL ZIRCONS DEPLETED MANTLE U-PB NEODYMIUM ISOTOPES SUBDUCTION ZONES OXYGEN ISOTOPES WEST GREENLAND GROWTH HAFNIUM |
description |
The continental crust covers nearly a third of the Earth's surface. It is buoyant - being less dense than the crust under the surrounding oceans - and is compositionally evolved, dominating the Earth's budget for those elements that preferentially partition into silicate liquid during mantle melting. Models for the differentiation of the continental crust can provide insights into how and when it was formed, and can be used to show that the composition of the basaltic protolith to the continental crust is similar to that of the average lower crust. From the late Archaean to late Proterozoic eras ( some 3 - 1 billion years ago), much of the continental crust appears to have been generated in pulses of relatively rapid growth. Reconciling the sedimentary and igneous records for crustal evolution indicates that it may take up to one billion years for new crust to dominate the sedimentary record. Combining models for the differentiation of the crust and the residence time of elements in the upper crust indicates that the average rate of crust formation is some 2 - 3 times higher than most previous estimates. |
format |
Article in Journal/Newspaper |
author |
Hawkesworth, Christopher John Kemp, AIS |
author_facet |
Hawkesworth, Christopher John Kemp, AIS |
author_sort |
Hawkesworth, Christopher John |
title |
Evolution of the continental crust |
title_short |
Evolution of the continental crust |
title_full |
Evolution of the continental crust |
title_fullStr |
Evolution of the continental crust |
title_full_unstemmed |
Evolution of the continental crust |
title_sort |
evolution of the continental crust |
publishDate |
2006 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/evolution-of-the-continental-crust(8e54c788-8c00-4d69-85cb-78db7e087e48).html https://doi.org/10.1038/nature05191 http://www.scopus.com/inward/record.url?scp=33750283219&partnerID=8YFLogxK |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Hawkesworth , C J & Kemp , AIS 2006 , ' Evolution of the continental crust ' , Nature , vol. 443 , no. 7113 , pp. 811-817 . https://doi.org/10.1038/nature05191 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/evolution-of-the-continental-crust(8e54c788-8c00-4d69-85cb-78db7e087e48).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1038/nature05191 |
container_title |
Nature |
container_volume |
443 |
container_issue |
7113 |
container_start_page |
811 |
op_container_end_page |
817 |
_version_ |
1802644957839753216 |