Skip to main content

2) 40Ar/39Ar Age Data - Laser Method

40Ar/39Ar geochronologic data for study of country rock, Butte, U.S.A.

Dates

Publication Date
Time Period
2018

Citation

Lund, K., McAleer, R.J., Aleinikoff, J.N., Cosca, M.A., and Kunk, M.J., 2018, U-Pb SHRIMP and 40Ar/39Ar geochronologic data and backscatter electron (BSE) and panchromatic cathodoluminescent (CL) imagery of sample materials for study of dikes, country rock, and alteration systems, Butte, U.S.A: U.S. Geological Survey data release, https://doi.org/10.5066/P9F872I5.

Summary

These 40Ar/39Ar thermochronologic data for biotite, hornblende, and K-feldspar from Butte granite country rock are for the study of the Butte mining district, U.S.A. Results of the study are described and interpreted in Lund and others (2018).

Contacts

Attached Files

Click on title to download individual files attached to this item.

Butte_ArgonLaser_Data.csv
“40Ar/39Ar laser data (csv file)”
120.8 KB text/csv
Butte_ArgonLaser_Data.xlsx
“40Ar/39Ar laser data & dictionary (Excel workbook)”
127.02 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Butte_ArgonLaser_Dictionary.csv
“40Ar/39Ar laser data (csv file)”
7.28 KB text/csv

Purpose

The study provides age data to test ore-deposit models for relations between stockwork Cu-Mo and Ag-Zn-Cu lodes at Butte, Montana, by undertaking a comprehensive district-wide, SHRIMP U-Pb study of dike emplacement ages combined with 40Ar/39Ar study of host rock cooling and reheating as well as 40Ar/39Ar study of muscovite in alteration adjacent to lodes.

Item Actions

View Item as ...

Save Item as ...

View Item...