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Lu-Hf Residence Time Grid (igneous)

AuScope
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://portal.auscope.org.au/geonetwork/srv/eng/catalog.search#/metadata/063a0a3716b702f47e53aaf65421c84edaa74ed4&rft.title=Lu-Hf Residence Time Grid (igneous)&rft.identifier=063a0a3716b702f47e53aaf65421c84edaa74ed4&rft.publisher=AuScope&rft.description=This is an interpolated grid of Lu-Hf residence time estimates, based on (primarily zircon) Lu-Hf isotopic analyses from igneous rocks. The data provides an estimate of the duration for material residing in the crust prior to its last melting event. The point data used for the interpolation is the median magmatic residence time data from the summary Lu-Hf dataset held in the Isotopic Atlas as of February 2021. Point data added to the Isotopic Atlas after February 2021 is not represented in this grid. The grid was generated with Esri's ArcMap Spatial Analyst interpolation tool using the Natural Neighbor algorithm and 0.01 degree cell size. Two classifications are provided for this grid; a Jenks natural breaks classification with ten classes (classification 1) as per Champion (2013) http://pid.geoscience.gov.au/dataset/ga/77772, and; the same seven-class interval binning and colour scheme applied to the source point data in the Lu-Hf Isotopes - Summary Data layer (classification 2).Maintenance and Update Frequency: asNeeded&rft.creator=Anonymous&rft.date=2022&rft.coverage=westlimit=128.356727; southlimit=-24.134163999999988; eastlimit=139.836727; northlimit=-11.904163999999998&rft.coverage=westlimit=128.356727; southlimit=-24.134163999999988; eastlimit=139.836727; northlimit=-11.904163999999998&rft_rights=© Commonwealth of Australia (Geoscience Australia) 2021. This product is released under the Creative Commons Attribution 4.0 International Licence&rft_rights= https://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=Isotopes&rft_subject=Geochronology&rft_subject=Isotope Geochemistry&rft_subject=Lu-Hf&rft_subject=residence time&rft_subject=Earth Science&rft_subject=EARTH SCIENCES&rft.type=dataset&rft.language=English Access the data
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© Commonwealth of Australia (Geoscience Australia) 2021. This product is released under the Creative Commons Attribution 4.0 International Licence

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Brief description

This is an interpolated grid of Lu-Hf residence time estimates, based on (primarily zircon) Lu-Hf isotopic analyses from igneous rocks. The data provides an estimate of the duration for material residing in the crust prior to its last melting event. The point data used for the interpolation is the median magmatic residence time data from the summary Lu-Hf dataset held in the Isotopic Atlas as of February 2021. Point data added to the Isotopic Atlas after February 2021 is not represented in this grid. The grid was generated with Esri's ArcMap Spatial Analyst interpolation tool using the Natural Neighbor algorithm and 0.01 degree cell size. Two classifications are provided for this grid; a Jenks natural breaks classification with ten classes (classification 1) as per Champion (2013) http://pid.geoscience.gov.au/dataset/ga/77772, and; the same seven-class interval binning and colour scheme applied to the source point data in the Lu-Hf Isotopes - Summary Data layer (classification 2).

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139.83673,-11.90416 139.83673,-24.13416 128.35673,-24.13416 128.35673,-11.90416 139.83673,-11.90416

134.096727,-18.019164

text: westlimit=128.356727; southlimit=-24.134163999999988; eastlimit=139.836727; northlimit=-11.904163999999998

Subjects
Earth Sciences | Earth Science | Geochronology | Isotope Geochemistry | Isotopes | Lu-Hf | geoscientificInformation | residence time |

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  • global : 063a0a3716b702f47e53aaf65421c84edaa74ed4
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