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SHRIMP U-Pb and LA-ICPMS U-Pb geochronologic data for igneous and metasedimentary rocks in central Idaho mineral province, U.S.A.
These data are for a geochronologic study of emplacement ages for plutons of the Cretaceous Idaho batholith and detrital zircon ages for metasedimentary rocks, west-central Idaho. Zircon from six samples of discrete plutons across a regional transect were dated by sensitive high resolution ion microprobe (SHRIMP). SHRIMP U-Pb ages of igneous rocks connect the igneous activity to structural history, crustal depths, and origins of epigenetic gold-silver-antimony-tungsten±mercury mineral deposits. Zircon from four samples of metasedimentary rocks in the southern part of the central Idaho mineral province were dated - three by laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) methods and one by SHRIMP methods - to provide maximum depositional ages and details about original sedimentary provenances. These SHRIMP and LA-ICPMS U-Pb data are shared to meet open data requirements.
Complete Metadata
| accessLevel | public |
|---|---|
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[
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|
| contactPoint |
{
"fn": "Karen Lund",
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"hasEmail": "mailto:klund@usgs.gov"
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|
| description | These data are for a geochronologic study of emplacement ages for plutons of the Cretaceous Idaho batholith and detrital zircon ages for metasedimentary rocks, west-central Idaho. Zircon from six samples of discrete plutons across a regional transect were dated by sensitive high resolution ion microprobe (SHRIMP). SHRIMP U-Pb ages of igneous rocks connect the igneous activity to structural history, crustal depths, and origins of epigenetic gold-silver-antimony-tungsten±mercury mineral deposits. Zircon from four samples of metasedimentary rocks in the southern part of the central Idaho mineral province were dated - three by laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) methods and one by SHRIMP methods - to provide maximum depositional ages and details about original sedimentary provenances. These SHRIMP and LA-ICPMS U-Pb data are shared to meet open data requirements. |
| distribution |
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| identifier | http://datainventory.doi.gov/id/dataset/USGS_63bdf345d34e92aad3cda5bd |
| keyword |
[
"GGGSC",
"Geology, Geophysics, and Geochemistry Science Center",
"ID",
"Idaho",
"Idaho County",
"LA-ICPMS",
"Laser-Ablation Inductively-Coupled Plasma Mass Spectrometry",
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"Sensitive High-Resolution Ion Microprobe",
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"U.S. Geological Survey",
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"Valley County",
"detrital zircon",
"geochronology",
"geoscientificInformation",
"radiometric dating",
"thorium",
"uranium-lead"
]
|
| modified | 2023-08-30T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
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|
| spatial | -116.0316, 44.7239, -114.9663, 45.3228 |
| theme |
[
"Geospatial"
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|
| title | SHRIMP U-Pb and LA-ICPMS U-Pb geochronologic data for igneous and metasedimentary rocks in central Idaho mineral province, U.S.A. |
