Implications of erosion and bedrock composition on zircon fertility: Examples from South America and Western Australia
Isotopic analysis of zircon has been useful in charting our planet's geological history from the Holocene to the Hadean. Zircon is present in a range of lithologies, yet its yield in sedimentary systems is governed by the zircon fertility of the source rocks and their denudation rate. This inte...
| Main Authors: | , , |
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| Format: | Journal Article |
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Blackwell Publishing Ltd
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/69647 |
| _version_ | 1848762096577150976 |
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| author | Spencer, Christopher Kirkland, Chris Roberts, N. |
| author_facet | Spencer, Christopher Kirkland, Chris Roberts, N. |
| author_sort | Spencer, Christopher |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Isotopic analysis of zircon has been useful in charting our planet's geological history from the Holocene to the Hadean. Zircon is present in a range of lithologies, yet its yield in sedimentary systems is governed by the zircon fertility of the source rocks and their denudation rate. This interplay is illustrated in South America where rocks exposed in the Amazonia craton have higher Zr concentrations (i.e. greater zircon yield) than the Andes; however, the detrital zircon population of the Amazon River catchment shows more zircon from the Andes given the higher erosion rate. Nonetheless, the observed zircon frequency can be corrected for erosional and fertility biases. Additionally, detrital zircon in fluvial sediment in Western Australia, previously interpreted as quantifying differential erosion, can alternatively be explained as an effect of Zr content (therefore zircon fertility) of the sources. Understanding the variables controlling zircon yield will facilitate accurately interpreting detrital zircon signatures through deep time and their application to crustal evolution questions. |
| first_indexed | 2025-11-14T10:42:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-69647 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:42:08Z |
| publishDate | 2018 |
| publisher | Blackwell Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-696472019-01-09T01:29:09Z Implications of erosion and bedrock composition on zircon fertility: Examples from South America and Western Australia Spencer, Christopher Kirkland, Chris Roberts, N. Isotopic analysis of zircon has been useful in charting our planet's geological history from the Holocene to the Hadean. Zircon is present in a range of lithologies, yet its yield in sedimentary systems is governed by the zircon fertility of the source rocks and their denudation rate. This interplay is illustrated in South America where rocks exposed in the Amazonia craton have higher Zr concentrations (i.e. greater zircon yield) than the Andes; however, the detrital zircon population of the Amazon River catchment shows more zircon from the Andes given the higher erosion rate. Nonetheless, the observed zircon frequency can be corrected for erosional and fertility biases. Additionally, detrital zircon in fluvial sediment in Western Australia, previously interpreted as quantifying differential erosion, can alternatively be explained as an effect of Zr content (therefore zircon fertility) of the sources. Understanding the variables controlling zircon yield will facilitate accurately interpreting detrital zircon signatures through deep time and their application to crustal evolution questions. 2018 Journal Article http://hdl.handle.net/20.500.11937/69647 10.1111/ter.12338 Blackwell Publishing Ltd restricted |
| spellingShingle | Spencer, Christopher Kirkland, Chris Roberts, N. Implications of erosion and bedrock composition on zircon fertility: Examples from South America and Western Australia |
| title | Implications of erosion and bedrock composition on zircon fertility: Examples from South America and Western Australia |
| title_full | Implications of erosion and bedrock composition on zircon fertility: Examples from South America and Western Australia |
| title_fullStr | Implications of erosion and bedrock composition on zircon fertility: Examples from South America and Western Australia |
| title_full_unstemmed | Implications of erosion and bedrock composition on zircon fertility: Examples from South America and Western Australia |
| title_short | Implications of erosion and bedrock composition on zircon fertility: Examples from South America and Western Australia |
| title_sort | implications of erosion and bedrock composition on zircon fertility: examples from south america and western australia |
| url | http://hdl.handle.net/20.500.11937/69647 |