Surface electrical resistivity tomography, magnetic, and gravity surveys in Redwell Basin and the greater East River watershed near Crested Butte, Colorado, 2017

Year: 2022

Location: Gunnison Basin, Colorado

Bounding box: 38.887°N to 38.899°N, -107.059°W to -106.899°W

Publisher: USGS

Tags: USGS Science Data Catalog (SDC), geoscientificInformation, environment, electrical resistivity tomography, resistivity, magnetic surveying, gravity, bouguer anomaly, free-air anomaly, gravimeter measurement, gravitational field (earth), geophysics, hydrogeology, magnetic field, magnetic anomaly maps, geospatial datasets, water resources, groundwater, magnetics, Geology, Geophysics, and Geochemistry Science Center, GGGSC, U.S. Geological Survey, USGS, Mineral Resources Program, MRP, Crested Butte, Colorado, Oh-be-joyful, Gunnison County, Gothic, Redwell Basin, Brush Creek, Mount Emmons, East River, Environmental Health, Geochemistry, Geophysics, Hydrology, Mineral Resources, Water Resources, Hydrology & Watersheds, Gunnison Basin

Description

Surface electrical resistivity tomography (ERT), time-domain electromagnetics (TEM), nuclear magnetic resonance (NMR), magnetics, and gravity data were acquired in 2016, 2017 and 2018 in the greater East River Watershed near Crested Butte Colorado with a focused effort in Redwell Basin. Five ERT profiles were acquired within Redwell Basin and Brush Creek to map geologic structure at depths up to 40 meters, depending on the subsurface resistivity, using the Advanced Geosciences, Inc. SuperSting R8 resistivity meter. Approximately ten kilometers of total field magnetics data were acquired with a Geometrics G-858 cesium vapor magnetometer that detects changes in deep (tens of meters to kilometers) geologic structure based on variations [...]

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