Data

Lu-Hf Epsilon-Hf Grid (igneous)

AuScope
Client Services (Point of contact) Geoscience Australia (Associated with)
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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=http://portal.auscope.org/geonetwork/srv/api/records/177abe2c-9efe-4fd2-a66e-0f1e099c3047&rft.title=Lu-Hf Epsilon-Hf Grid (igneous)&rft.identifier=6f2bb0aee81a8134ff144f4db1d43d2b01b63f77&rft.publisher=AuScope&rft.description=This is an interpolated grid of Lu-Hf epsilon values, based on (primarily zircon) Lu-Hf isotopic analyses from igneous rocks. The point data used for the interpolation is the median magmatic epsilon Hf 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 eight-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=2025&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=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=magmatic eHf&rft_subject=World&rft_subject=EARTH SCIENCES&rft.type=dataset&rft.language=English Access the data
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This is an interpolated grid of Lu-Hf epsilon values, based on (primarily zircon) Lu-Hf isotopic analyses from igneous rocks. The point data used for the interpolation is the median magmatic epsilon Hf 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 eight-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 | Geochronology | Isotope Geochemistry | Isotopes | Lu-Hf | World | geoscientificInformation | magmatic eHf |

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Lu-Hf Epsilon-Hf Grid (igneous) (isotope:luhf_magmatic_ehft_grid)

url : https://services.ga.gov.au/gis/geochronology-isotopes/ows?SERVICE=WMS&

Identifiers
  • global : 6f2bb0aee81a8134ff144f4db1d43d2b01b63f77
ACN 633 798 857