Geochemical Data Release for Gospel-Hump Wilderness Area, Magruder Corridor and Special Mining Management Zone Additions to the Frank Church River of No Return Wilderness Area, and adjacent areas Idaho and Montana

Dates

Publication Date: 2017-07-26
Start Date: 1979
End Date: 1984

Citation

Erickson, T.M., Granitto, Matthew, Lund, Karen, and Smith, S.M., 2017, Geochemical Data Release for Gospel-Hump Wilderness Area, Magruder Corridor and Special Mining Management Zone Additions to the Frank Church River of No Return Wilderness Area, and adjacent areas Idaho and Montana: U.S. Geological Survey data release, https://doi.org/10.5066/F7N29V6N.

Summary

The data release for Gospel-Hump Wilderness Area and the Magruder Corridor and Special Mining Management Zone Additions to the Frank Church River of No Return Wilderness Area, and adjacent areas Idaho and Montana, contains a subset of previously unpublished geochemical data from the 1979-1984 projects. In the case of Gospel-Hump Wilderness Area study (Lund and Esparza, 1990), the purpose of the project was to determine petrologic and geochemical characteristics and to investigate effects of historic mine drainage in the study area. Data for the Magruder Corridor Addition reflect rock geochemistry to document petrologic and geochemical characteristics (Mosier and others, 1981; Lund and others, 1992). Included in this data set are 696 [...]

Summary

The data release for Gospel-Hump Wilderness Area and the Magruder Corridor and Special Mining Management Zone Additions to the Frank Church River of No Return Wilderness Area, and adjacent areas Idaho and Montana, contains a subset of previously unpublished geochemical data from the 1979-1984 projects. In the case of Gospel-Hump Wilderness Area study (Lund and Esparza, 1990), the purpose of the project was to determine petrologic and geochemical characteristics and to investigate effects of historic mine drainage in the study area. Data for the Magruder Corridor Addition reflect rock geochemistry to document petrologic and geochemical characteristics (Mosier and others, 1981; Lund and others, 1992). Included in this data set are 696 stream sediment samples, 90 magnetic heavy-mineral concentrate samples (C1 fraction) of stream sediment, 256 nonmagnetic heavy-mineral concentrate samples (C3 fraction) of stream sediment, 134 slightly magnetic to nonmagnetic heavy-mineral concentrate samples (C4 fraction) of stream sediment, and 704 rock samples. All were analyzed by semi-quantitative 6-step emission spectrography. Some of the stream sediment samples were also analyzed by flame-atomic absorption spectrophotometry after partial digestion by K2S2O7 fusion, HCl-KI dissolution and extraction with MIBK. Also analyzed with these samples were 99 standard reference material samples (SRMs) and 53 blind SRMs. The data for these standards are not included in this data release. Data for the Special Mining Management Zone Addition are re-analyses of selected stream-sediment samples from earlier studies (Cater and others, 1975; Knowles, 1975) to augment data collected for a study published by Lund and others (1983). For the Special Mining Management Zone, data in this data set were re-analyzed from earlier studies as supplement to samples collected for the study published in Lund and others (1983). Sample numbers (FIELD_ID) beginning with 5FC are selected stream-sediment samples reanalyzed from Cater and others (1975, see their Table 1). Sample numbers (FIELD_ID) beginning with 5K are selected stream-sediment samples reanalyzed from Knowles (1975, their Table 1).

Cater, F.C., Pinckney, D.M., and Stotelmeyer, R.B., 1975, Mineral resources of the Clear Creek-Upper Big Deer Creek study area, contiguous to the Idaho Primitive Area, Lemhi County, Idaho: U.S. Geological Survey Bulletin 1391-C, 41 p., accessed on July 25, 2017 at https://pubs.er.usgs.gov/publication/b1391C.

Knowles, C., 1975, Reconnaissance geochemistry of the Bighorn Crags: Idaho Bureau of Mines and Geology Information Circular No. 26, 42 p.

Lund, Karen, and Esparza, L.E., 1990, Mineral resources of the Gospel-Hump Wilderness, Idaho County, Idaho: U.S. Geological Survey Bulletin 1812, 19 p., accessed on July 25, 2017 at https://pubs.er.usgs.gov/publication/b1812.

Lund, K., Evans, K.V., and Esparza, L.E., 1983, Mineral resource potential of the Special Mining Management Zone-Clear Creek, Lemhi County, Idaho: U.S. Geological Survey Miscellaneous Field Studies Map MF-1576-A, scale 1:50,000, 9 p,, accessed on July 25, 2017 at https://pubs.er.usgs.gov/publication/mf1576A.

Lund, K., Mutschler, F.M., Pawlowski, M.R., Hall, B.S., Bruce, R.M., and Evans, K.V., 1992, Geologic maps of the Big Mallard, Middle Bargamin, and Magruder Additions to the Frank Church--River-of-No-Return Wilderness, Lemhi and Idaho Counties, Idaho: U.S. Geological Survey Miscellaneous Field Studies Map MF-2204, scale 1:50,000., accessed on July 25, 2017 at https://pubs.er.usgs.gov/publication/mf2204.

Mosier, E.L., Pawlowski, M.R., Mutschler, F.E., Rehn, W.R., Lund, K., Coxe, B.W., and Yeoman, R.O., 1981, Analyses of rocks and stream sediment from the Magruder Corridor Roadless Area, Idaho County, Idaho: U.S. Geological Survey Open-File Report 81-891, 138 p., accessed on July 25, 2017 at https://pubs.er.usgs.gov/publication/ofr81891.

Contacts

Point of Contact :: Matthew Granitto
Process Contact :: Matthew Granitto
Originator :: Trent M Erickson, Matthew Granitto, Karen Lund, Steven M Smith
Metadata Contact :: Matthew Granitto
Publisher :: U.S. Geological Survey
Distributor :: U.S. Geological Survey - ScienceBase
USGS Mission Area :: Energy and Minerals
SDC Data Owner :: Geology, Geophysics, and Geochemistry Science Center

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GH_DR2017.xml “Metadata in .xml format” Original FGDC Metadata	View	371.31 KB	application/fgdc+xml
GospelHump_DR2017.accdb “Geochemical relational database”		20.42 MB	application/x-msaccess
GospelHump_DR2017_txt.zip “Data files for geochemical database”		510.56 KB	application/zip
GH_DR2017.faq.html “Metadata in .faq.html format”		340.1 KB	text/html
GH_DR2017.html “Metadata in .html format”		484.03 KB	text/html
GH_DR2017.txt “Metadata in .txt format”		364.1 KB	text/plain

Shapefile: Export_Output.zip
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Export_Output.dbf		538.06 KB
Export_Output.prj		168 Bytes
Export_Output.sbn		17.11 KB
Export_Output.sbx		652 Bytes
Export_Output.shp		51.5 KB
Export_Output.shx		14.79 KB

Purpose

The purpose of the data release is to recover and make publicly available the data generated by the projects. The data are intended to present the geochemistry from the projects as a digital data release that complements other existing USGS data sets to more accurately facilitate geologic mapping, petrologic studies, mineral resource assessments and favorability, definition of geochemical baseline values and statistics, environmental impact assessments, and studies in medical geology.

Geochemical Data Release for Gospel-Hump Wilderness Area, Magruder Corridor and Special Mining Management Zone Additions to the Frank Church River of No Return Wilderness Area, and adjacent areas Idaho and Montana

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