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Open-file Report - 578
Geologic Cross Sections and Preliminary Geologic Map of the Questa Area, Taos County, New Mexico

P.W. Bauer, V.J.S. Grauch, P.S. Johnson, R.A. Thompson, B.J. Drenth, and K.I. Kelson

2015

In 2011, the senior authors were contacted by Ron Gardiner of Questa, and Village of Questa Mayor Esther Garcia, to discuss the existing and future groundwater supply for the Village of Questa. This meeting led to the development of a plan in 2013 to perform an integrated geologic, geophysical, and hydrogeologic investigation of the Questa area by the New Mexico Bureau of Geology & Mineral Resources (NMBG), the U.S. Geological Survey (USGS), and New Mexico Tech (NMT).

The NMBG was responsible for the geologic map and geologic cross sections. The USGS was responsible for a detailed geophysical model to be incorporated into the NMBG products. NMT was responsible for providing a graduate student to develop a geochemical and groundwater flow model. This report represents the final products of the geologic and geophysical investigations conducted by the NMBG and USGS. The USGS final products have been incorporated directly into the geologic cross sections.

The objective of the study was to characterize and interpret the shallow (to a depth of approximately 5,000 ft) three-dimensional geology and preliminary hydrogeology of the Questa area. The focus of this report is to compile existing geologic and geophysical data, integrate new geophysical data, and interpret these data to construct three, detailed geologic cross sections across the Questa area. These cross sections can be used by the Village of Questa to make decisions about municipal water-well development, and can be used in the future to help in the development of a conceptual model of groundwater flow for the Questa area. Attached to this report are a location map, a preliminary geologic map and unit descriptions, tables of water wells and springs used in the study, and three detailed hydrogeologic cross sections shown at two different vertical scales. The locations of the cross sections are shown on the index map of the cross section sheet.

See ReadMe.html for more information about this report.

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File Name Size Last Modified
OFR-578_complete.zip 28.65 MB 02/11/2016 09:14:38 AM
OFR-578_Report.pdf 190 KB 01/25/2016 10:15:23 AM
ReadMe.html 5 KB 02/29/2016 03:00:06 PM
ReadMe.txt 5 KB 02/29/2016 02:58:16 PM
SupplementaryData:
plates:
4-OFR578_Plate1_GeologicMap.pdf 22.84 MB 02/11/2016 09:10:21 AM
5-OFR578_CorrelationChart.pdf 77 KB 01/25/2016 10:15:24 AM
6-OFR578_UnitDescriptions.pdf 165 KB 01/25/2016 10:15:24 AM
7-OFR578_Plate_2.pdf 6.47 MB 02/09/2016 01:48:05 PM
tables:
2-OFR578_Table1_Wells.pdf 114 KB 01/25/2016 10:15:23 AM
3-OFR578_Table2_Springs.pdf 59 KB 01/25/2016 10:15:24 AM

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