Spot the difference: Zircon disparity tracks crustal evolution
© 2019 Geological Society of America. We present a novel approach to examining the detrital zircon record, using similarity analysis of regionally defined populations to track crust production, preservation, and the efficacy of crustal recycling and homogenization. We compared temporally binned detr...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
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GEOLOGICAL SOC AMER, INC
2019
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/76473 |
| _version_ | 1848763695812837376 |
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| author | Barham, Milo Kirkland, Chris Hollis, Julie |
| author_facet | Barham, Milo Kirkland, Chris Hollis, Julie |
| author_sort | Barham, Milo |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 Geological Society of America. We present a novel approach to examining the detrital zircon record, using similarity analysis of regionally defined populations to track crust production, preservation, and the efficacy of crustal recycling and homogenization. We compared temporally binned detrital zircon age data from geographically defined regions using Kolmogorov-Smirnov similarity measures, multidimensional scaling, and cluster analysis. This approach tracks disparity in the global detrital zircon record from 4 Ga to the present. Disparity values increase dramatically in the Neoarchean and are interpreted to reflect the emergence and preservation of isolated crustal fragments. Disparity values decrease through the early Paleoproterozoic, associated with the onset of plate tectonics and craton assembly. Oscillating disparity values through the remaining Proterozoic and Phanerozoic correlate ( p = < 0.01) with the supercontinent cycle, where regional detrital zircon populations are more similar during assembly and more distinct during dispersal. This link between the detrital zircon record and the supercontinent cycle necessitates well-coupled crustal recycling mechanisms that operate via both magmatic and sedimentary processes. |
| first_indexed | 2025-11-14T11:07:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-76473 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:07:33Z |
| publishDate | 2019 |
| publisher | GEOLOGICAL SOC AMER, INC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-764732020-12-03T03:52:46Z Spot the difference: Zircon disparity tracks crustal evolution Barham, Milo Kirkland, Chris Hollis, Julie Science & Technology Physical Sciences Geology BILLION YEARS EARTH TECTONICS GROWTH RECORD ONSET © 2019 Geological Society of America. We present a novel approach to examining the detrital zircon record, using similarity analysis of regionally defined populations to track crust production, preservation, and the efficacy of crustal recycling and homogenization. We compared temporally binned detrital zircon age data from geographically defined regions using Kolmogorov-Smirnov similarity measures, multidimensional scaling, and cluster analysis. This approach tracks disparity in the global detrital zircon record from 4 Ga to the present. Disparity values increase dramatically in the Neoarchean and are interpreted to reflect the emergence and preservation of isolated crustal fragments. Disparity values decrease through the early Paleoproterozoic, associated with the onset of plate tectonics and craton assembly. Oscillating disparity values through the remaining Proterozoic and Phanerozoic correlate ( p = < 0.01) with the supercontinent cycle, where regional detrital zircon populations are more similar during assembly and more distinct during dispersal. This link between the detrital zircon record and the supercontinent cycle necessitates well-coupled crustal recycling mechanisms that operate via both magmatic and sedimentary processes. 2019 Journal Article http://hdl.handle.net/20.500.11937/76473 10.1130/G45840.1 English http://creativecommons.org/licenses/by/4.0/ GEOLOGICAL SOC AMER, INC fulltext |
| spellingShingle | Science & Technology Physical Sciences Geology BILLION YEARS EARTH TECTONICS GROWTH RECORD ONSET Barham, Milo Kirkland, Chris Hollis, Julie Spot the difference: Zircon disparity tracks crustal evolution |
| title | Spot the difference: Zircon disparity tracks crustal evolution |
| title_full | Spot the difference: Zircon disparity tracks crustal evolution |
| title_fullStr | Spot the difference: Zircon disparity tracks crustal evolution |
| title_full_unstemmed | Spot the difference: Zircon disparity tracks crustal evolution |
| title_short | Spot the difference: Zircon disparity tracks crustal evolution |
| title_sort | spot the difference: zircon disparity tracks crustal evolution |
| topic | Science & Technology Physical Sciences Geology BILLION YEARS EARTH TECTONICS GROWTH RECORD ONSET |
| url | http://hdl.handle.net/20.500.11937/76473 |