Measuring timescales of magmatic evolution
Advances in analytical methods have provided new insights into the timescales of magmatic processes. Data on the abundances of U-series isotopes in bulk rocks and crystal separates indicate magma differentiation over thousands of years. Residence and differentiation times of silicic magmas based on...
Saved in:
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2012
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/95065 http://hdl.handle.net/10220/8719 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-95065 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-950652020-03-07T12:37:19Z Measuring timescales of magmatic evolution Turner, Simon Costa, Fidel School of Physical and Mathematical Sciences DRNTU::Science::Mathematics Advances in analytical methods have provided new insights into the timescales of magmatic processes. Data on the abundances of U-series isotopes in bulk rocks and crystal separates indicate magma differentiation over thousands of years. Residence and differentiation times of silicic magmas based on single-crystal, in situ age data vary from 10,000 to 100,000 years, with abundant evidence for crystal recycling from previous intrusive episodes. Chemical zoning patterns in single crystals indicate that processes such as mixing and mingling of magmas and crustal assimilation may occur over much shorter timescales of months to decades. Quantifying the rates of magma generation, emplacement and differentiation constrains the processes involved and may contribute to the evaluation of volcanic hazards. 2012-10-08T05:50:53Z 2019-12-06T19:07:33Z 2012-10-08T05:50:53Z 2019-12-06T19:07:33Z 2007 2007 Journal Article Turner, S., & Costa, F. (2007). Measuring timescales of magmatic evolution. Elements, 3(4), 267-272. 1811-5209 https://hdl.handle.net/10356/95065 http://hdl.handle.net/10220/8719 10.2113/gselements.3.4.267 en Elements © 2007 Mineralogical Society of America. |
institution |
Nanyang Technological University |
building |
NTU Library |
country |
Singapore |
collection |
DR-NTU |
language |
English |
topic |
DRNTU::Science::Mathematics |
spellingShingle |
DRNTU::Science::Mathematics Turner, Simon Costa, Fidel Measuring timescales of magmatic evolution |
description |
Advances in analytical methods have provided new insights into the timescales of magmatic processes. Data on the abundances of U-series isotopes in bulk rocks and crystal separates indicate magma differentiation over thousands of years. Residence and differentiation times of silicic magmas based on single-crystal, in situ age data vary from 10,000 to 100,000 years, with abundant evidence for crystal recycling from previous intrusive episodes. Chemical zoning patterns in single crystals indicate that processes such as mixing and mingling of magmas and crustal assimilation may occur over much shorter timescales of months to decades. Quantifying the rates of magma generation, emplacement and differentiation constrains the processes involved and may contribute to the evaluation of volcanic hazards. |
author2 |
School of Physical and Mathematical Sciences |
author_facet |
School of Physical and Mathematical Sciences Turner, Simon Costa, Fidel |
format |
Article |
author |
Turner, Simon Costa, Fidel |
author_sort |
Turner, Simon |
title |
Measuring timescales of magmatic evolution |
title_short |
Measuring timescales of magmatic evolution |
title_full |
Measuring timescales of magmatic evolution |
title_fullStr |
Measuring timescales of magmatic evolution |
title_full_unstemmed |
Measuring timescales of magmatic evolution |
title_sort |
measuring timescales of magmatic evolution |
publishDate |
2012 |
url |
https://hdl.handle.net/10356/95065 http://hdl.handle.net/10220/8719 |
_version_ |
1681047877904760832 |