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  3. 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.
  4. 1) U-Pb SHRIMP Age Data

1) U-Pb SHRIMP Age Data

U-Pb SHRIMP geochronologic data for study of dikes, 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 data are U-Pb sensitive high-resolution ion microprobe (SHRIMP) geochronology data from quartz porphyry dikes 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

Point of Contact :
Karen Lund
Originator :
Karen Lund, Ryan J McAleer, John N Aleinikoff, Michael A Cosca, Michael J Kunk
Metadata Contact :
Carma A San Juan
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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

Lund_Butte_SHRIMP_Meta.xml
Original FGDC Metadata
View 		21.79 KB application/fgdc+xml
Butte_SHRIMP_Data.csv
“SHRIMP data (csv file)” 		10.83 KB text/csv
Butte_SHRIMP_Data.xlsx
“SHRIMP data & dictionary (Excel workbook)” 		39.51 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Butte_SHRIMP_Dictionary.csv
“SHRIMP data dictionary (csv file)” 		1.09 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.

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