Mineral-scale Sr isotope variation in plutonic rocks - a tool for unravelling the evolution of magma systems.
Isotope ratios of elements such as Sr, Nd, Pb and Hf can be used as tracers of magmatic sources and processes. Analytical capabilities have evolved so that we can now analyse isotope ratios in situ, and can therefore use isotopic tracers within single minerals to track the changing magmatic environm...
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:5403 2023-05-15T14:04:18+02:00 Mineral-scale Sr isotope variation in plutonic rocks - a tool for unravelling the evolution of magma systems. Davidson, J. P. Font, L. Charlier, B. L. A. Tepley, F. J. III. 2006-07-01 http://dro.dur.ac.uk/5403/ http://www.ingentaconnect.com/content/rse/tes/2006/00000097/00000004/art00008 unknown Royal Society of Edinburgh dro:5403 issn:0263-5933 issn: 1473-7116 http://dro.dur.ac.uk/5403/ http://www.ingentaconnect.com/content/rse/tes/2006/00000097/00000004/art00008 Transactions of the Royal Society of Edinburgh. Earth sciences, 2006, Vol.97(4), pp.357-367 [Peer Reviewed Journal] Cooling histories Crystal isotope stratigraphy Differentiation Feldspars Isotope Ratios Article PeerReviewed 2006 ftunivdurham 2020-05-28T22:27:13Z Isotope ratios of elements such as Sr, Nd, Pb and Hf can be used as tracers of magmatic sources and processes. Analytical capabilities have evolved so that we can now analyse isotope ratios in situ, and can therefore use isotopic tracers within single minerals to track the changing magmatic environment in which a given mineral grew. This contribution shows that Sr isotope ratios in feldspars that make up plutonic rocks will typically preserve initial isotopic variations provided precise and accurate age corrections can be applied. Variations in initial isotope ratio can give a core-to-rim record of magmatic evolution and can be used to diagnose open system events such as contamination and magma recharge and mixing. New single grain Sr isotope data are presented from the Dais Intrusion, Antarctica, which reflect an open system origin for the crystals. The crystal cargo appears to be aggregated and assembled during transport and emplacement. This model, as opposed to a magma body crystallising post emplacement, may be more applicable to plutonic rocks in general, and is testable using the in situ isotopic determination methods described here. Article in Journal/Newspaper Antarc* Antarctica Durham University: Durham Research Online Dais ENVELOPE(161.267,161.267,-77.550,-77.550) |
institution |
Open Polar |
collection |
Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
topic |
Cooling histories Crystal isotope stratigraphy Differentiation Feldspars Isotope Ratios |
spellingShingle |
Cooling histories Crystal isotope stratigraphy Differentiation Feldspars Isotope Ratios Davidson, J. P. Font, L. Charlier, B. L. A. Tepley, F. J. III. Mineral-scale Sr isotope variation in plutonic rocks - a tool for unravelling the evolution of magma systems. |
topic_facet |
Cooling histories Crystal isotope stratigraphy Differentiation Feldspars Isotope Ratios |
description |
Isotope ratios of elements such as Sr, Nd, Pb and Hf can be used as tracers of magmatic sources and processes. Analytical capabilities have evolved so that we can now analyse isotope ratios in situ, and can therefore use isotopic tracers within single minerals to track the changing magmatic environment in which a given mineral grew. This contribution shows that Sr isotope ratios in feldspars that make up plutonic rocks will typically preserve initial isotopic variations provided precise and accurate age corrections can be applied. Variations in initial isotope ratio can give a core-to-rim record of magmatic evolution and can be used to diagnose open system events such as contamination and magma recharge and mixing. New single grain Sr isotope data are presented from the Dais Intrusion, Antarctica, which reflect an open system origin for the crystals. The crystal cargo appears to be aggregated and assembled during transport and emplacement. This model, as opposed to a magma body crystallising post emplacement, may be more applicable to plutonic rocks in general, and is testable using the in situ isotopic determination methods described here. |
format |
Article in Journal/Newspaper |
author |
Davidson, J. P. Font, L. Charlier, B. L. A. Tepley, F. J. III. |
author_facet |
Davidson, J. P. Font, L. Charlier, B. L. A. Tepley, F. J. III. |
author_sort |
Davidson, J. P. |
title |
Mineral-scale Sr isotope variation in plutonic rocks - a tool for unravelling the evolution of magma systems. |
title_short |
Mineral-scale Sr isotope variation in plutonic rocks - a tool for unravelling the evolution of magma systems. |
title_full |
Mineral-scale Sr isotope variation in plutonic rocks - a tool for unravelling the evolution of magma systems. |
title_fullStr |
Mineral-scale Sr isotope variation in plutonic rocks - a tool for unravelling the evolution of magma systems. |
title_full_unstemmed |
Mineral-scale Sr isotope variation in plutonic rocks - a tool for unravelling the evolution of magma systems. |
title_sort |
mineral-scale sr isotope variation in plutonic rocks - a tool for unravelling the evolution of magma systems. |
publisher |
Royal Society of Edinburgh |
publishDate |
2006 |
url |
http://dro.dur.ac.uk/5403/ http://www.ingentaconnect.com/content/rse/tes/2006/00000097/00000004/art00008 |
long_lat |
ENVELOPE(161.267,161.267,-77.550,-77.550) |
geographic |
Dais |
geographic_facet |
Dais |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Transactions of the Royal Society of Edinburgh. Earth sciences, 2006, Vol.97(4), pp.357-367 [Peer Reviewed Journal] |
op_relation |
dro:5403 issn:0263-5933 issn: 1473-7116 http://dro.dur.ac.uk/5403/ http://www.ingentaconnect.com/content/rse/tes/2006/00000097/00000004/art00008 |
_version_ |
1766275328235274240 |