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  1. SHRIMP U-Pb and LA-ICPMS U-Pb geochronologic data for igneous and metasedimentary rocks in central Idaho mineral province, U.S.A.

SHRIMP U-Pb and LA-ICPMS U-Pb geochronologic data for igneous and metasedimentary rocks in central Idaho mineral province, U.S.A.

Dates

Time Period
2023
Publication Date

Citation

Aleinikoff, J.N., Holm-Denoma, C.S., and Lund, K., 2023, SHRIMP U-Pb and LA-ICPMS U-Pb geochronologic data for igneous and metasedimentary rocks in central Idaho mineral province, U.S.A.: U.S. Geological Survey data release, https://doi.org/10.5066/P931I3A3.

Summary

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 [...]

Contacts

Point of Contact :
Karen Lund
Originator :
John N Aleinikoff, Christopher S Holm-Denoma, Karen Lund
Metadata Contact :
Micah A Hernandez, GS GGGSC DM Team
USGS Program :
Mineral Resources Program
Data Owner :
Mineral Resources Program
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Geology, Geophysics, and Geochemistry Science Center
USGS Mission Area :
Energy and Minerals

Attached Files

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YP_Metadata.xml
Original FGDC Metadata
View 		41.93 KB application/fgdc+xml
Sample_Locations.csv
“Sample locations and information” 		704 Bytes text/csv
LA-ICPMS_Data.csv
“LA-ICP-MS U-Pb data for detrital zircon.” 		68.76 KB text/csv
SHRIMP_Detrital_Data.csv
“SHRIMP U-Pb data for detrital zircon.” 		5.86 KB text/csv
SHRIMP_Igneous_Data.csv
“SHRIMP U-Pb data for igneous zircon.” 		9.82 KB text/csv

Purpose

One aspect of this comprehensive regional study provides age data for discrete plutons of Cretaceous Idaho batholith of west-central Idaho. These data are useful for many subsequent studies, including regional geophysics, tectonics, plutonic history, and a variety of epigenetic mineral deposit types. A second aspect of the regional study provides maximum age and sedimentary provenance data that add to understanding of the pre-Cretaceous country rocks.

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  • USGS Data Release Products
  • USGS Geology, Geophysics, and Geochemistry Science Center

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P931I3A3

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