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Geochemistry and Environmental Tracer Data for Groundwater, Stream Water, and Ferricrete Samples from Handcart Gulch, Colorado

Metadata Updated: October 28, 2023

This data release is part of a study examining the use of near-stream groundwater discharge as a tool for Geochemical Exploration. Handcart Gulch is an unmined alpine watershed in Montezuma Mining District in the Colorado Front Range. The streambed is cemented by deep ferricrete deposits. Stream water, groundwater, and ferricrete samples were collected and analyzed to constrain the location of a possible concealed mineral occurrence identified by previous stream water sampling. Nineteen, near stream mini-boreholes were drilled through ferricrete using a portable, handheld, gasoline powered, rock coring drill manufactured by Shaw Tool. Boreholes were drilled within 2 meters of the stream on the east and west banks to constrain local-scale groundwater variations on either side of the stream. Ferricrete samples were logged and collected during drilling. A subset of ferricrete samples were analyzed for bulk chemistry and a deionized water leach quantified the water-soluble fraction from the ferricrete samples. Groundwater levels and field parameters (temperature, pH, specific conductance, and dissolved oxygen) were measured and groundwater samples were collected using a peristaltic pump for major and trace element chemistry. Environmental tracer samples (stable water isotopes, dissolved noble gases, helium isotopes, and tritium) were collected using a submersible double-valve pump manufactured by Solinst Canada Ltd. Stream water samples were collected adjacent to mini-boreholes over a period of two days with no major precipitation events.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 28, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 28, 2023
Publisher U.S. Geological Survey
Identifier USGS:5d40df91e4b01d82ce8da125
Data Last Modified 20200929
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id f5f61665-4815-41f9-a8fd-9300f1140195
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -105.8323,39.4843,-105.808,39.5219
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 4070264c4fe817456655344a431c12a059134a4c03e9ff6ad221f4e68cee3fcc
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -105.8323, 39.4843, -105.8323, 39.5219, -105.808, 39.5219, -105.808, 39.4843, -105.8323, 39.4843}

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