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Geochemical and Geochronological Data for Hydrothermal Systems on Brokeoff Volcano and in the Maidu Volcanic Center, Lassen Peak area, northeastern California

Dates

Publication Date
Start Date
2003
End Date
2018

Citation

John, D.A., Calvert, A.T., Breit, G.N., Lee, R.G., Dilles, J.H., Muffler, L.J.P., and Clynne, M.A., 2019, Geochemical and Geochronological Data for Hydrothermal Systems on Brokeoff Volcano and in the Maidu Volcanic Center, Lassen Peak area, northeastern California: U.S. Geological Survey data release, https://doi.org/10.5066/P9PZQGJG.

Summary

This dataset contains 8 data tables provided in csv format that contain sample location data, whole-rock geochemical data, argon-argon geochronologic data, sulfur, oxygen, and hydrogen isotope data, and mineralogical data from shortwave infrared spectrography (SWIR) and X-ray diffraction (XRD) analyses collected from igneous rocks on Brokeoff and Maidu volcanoes, northeastern California, USA. The data table files are Sample_Location_Data.csv, Argon_Data.csv, Geochemistry_Data.csv, SWIR_Data.csv, Whole_Rock_XRD.csv, Clay_XRD.csv, Sulfur_Isotope.csv, and Oxygen_Hydrogen_Data.csv. Fields in the data tables are defined in 8 corresponding data dictionaries, Sample_Location_Data_Dictionary.csv, Argon_Data_Dictionary.csv, Geochemistry_Data_Dictionary.csv, [...]

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Attached Files

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Sulfur_Isotope_Data.csv 2.19 KB
Geochemistry_Data.csv 44.85 KB
Clay_XRD_Data_Dictionary.csv 17.78 KB
SWIR_Data Dictionary.csv 24 KB
Sample_Location_Data.csv 19.54 KB
Clay_XRD_Data.csv 906.63 KB
Sulfur_Isotope_Data_Dictionary.csv 833 Bytes
Oxygen_Hydrogen_Isotope_Data_Dictionary.csv 521 Bytes
Whole_Rock_XRD_Data_Dictionary.csv 22.93 KB
Geochemistry_Data_Dictionary.csv 2.91 KB
Sample_Location_Data_Dictionary.csv 368 Bytes
SWIR_Data.csv 1.18 MB
AnalyticalTechniques.txt 7.05 KB
Oxygen_Hydrogen_Isotope_Data.csv 1.21 KB
Argon_Data_Dictionary.csv 6.38 KB
Argon_Data.csv 103.97 KB
Whole_Rock_XRD_Data.csv 3.06 MB
Brokeoff_ Metadata_3-18-19.xml
Original FGDC Metadata

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210.68 KB

Purpose

Data were collected to describe Pleistocene hydrothermal systems on Brokeoff and Maidu volcanoes to better understand hydrothermal systems on stratovolcanoes and potential mineral resources related to these hydrothermal systems. The Ar data are the results of argon isotope experiments to measure 40Ar/39Ar ages of alunite crystals and groundmass concentrates of volcanic rocks from Brokeoff and Maidu Volcanoes, part of the larger Lassen Volcanic Center.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9PZQGJG

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