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Data release of geochemistry and geochronology for Proterozoic rocks in southwestern Colorado and rocks from drill core from Colorado, North Dakota, Nevada, Wyoming, Montana, and Nebraska

Dates

Publication Date
Start Date
2021-07-01
End Date
2022-12-15

Citation

Hillenbrand, I.W., Gilmer, A.K., Lowers, H.A., and Jercinovic, M., 2023, Data release of geochemistry and geochronology for Proterozoic rocks in southwestern Colorado and rocks from drill core from Colorado, North Dakota, Nevada, Wyoming, Montana, and Nebraska: U.S. Geological Survey data release, https://doi.org/10.5066/P90IZUDS.

Summary

This U.S. Geological Survey (USGS) data release provides whole rock major, minor, and trace element geochemical data, mineral chemistry, and monazite and xenotime geochronology for Proterozoic rocks in the Needle Mountains of southwestern Colorado and for Proterozoic rocks sampled from drill cores from Colorado, North Dakota, Nevada, Wyoming, Montana, and Nebraska. Samples from the Needle Mountains were collected in order to constrain the polyphase tectonic evolution of the area. Additionally, multi-scale compositional mapping, petrologic modeling and in-situ geochronology constrain the pressure-temperature-time paths from basement gneisses and quartzites. Drill core samples are part of a larger characterization of the age and geochemical [...]

Contacts

Point of Contact :
Amy K Gilmer
Process Contact :
Amy K Gilmer, Jaime S Azain, Ashley Steiner, Arron Steiner, Heather A Lowers, Ian W Hillenbrand
Originator :
Ian W Hillenbrand, Amy K Gilmer, Heather A Lowers, Michael Jercinovic
Metadata Contact :
Amy K Gilmer
Publisher :
U.S. Geological Survey
SDC Data Owner :
Geosciences and Environmental Change Science Center
USGS Mission Area :
Core Science Systems
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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metadata.xml
Original FGDC Metadata
View 		91.93 KB application/fgdc+xml
SouthwesternColoradoDrillCore_DataDictionary.csv 48.72 KB text/csv
SouthwesternColoradoDrillCore_Geochemistry.csv 13.91 KB text/csv
SouthwesternColoradoDrillCore_PhosphateEPMA.csv 17.83 KB text/csv
SouthwesternColoradoDrillCore_Samples.csv 5.34 KB text/csv
SouthwesternColoradoDrillCore_SilicateEPMA.csv 1.05 MB text/csv

Purpose

This data set is part of an effort to establish the age and geochemical character of Precambrian basement terranes in the United States.

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P90IZUDS

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