Results of chemical analyses of soil, shale, and soil/shale extract from the Mancos Shale formation in the Gunnison Gorge National Conservation Area, southwestern Colorado, and at Hanksville, Utah

Michele L.W. Tuttle; Juli Fahy; Richard I. Grauch; Bridget A. Ball; Geneva W. Chong; John G. Elliott; John J. Kosovich; Keith E. Livo; Lisa L. Stillings

doi:10.3133/ofr20071002D

Results of chemical analyses of soil, shale, and soil/shale extract from the Mancos Shale formation in the Gunnison Gorge National Conservation Area, southwestern Colorado, and at Hanksville, Utah

Open-File Report 2007-1002-D

By: Michele L.W. Tuttle, Juli Fahy, Richard I. Grauch, Bridget A. Ball, Geneva W. Chong, John G. Elliott, John J. Kosovich, Keith E. Livo, and Lisa L. Stillings

https://doi.org/10.3133/ofr20071002D

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Abstract

Results of chemical and some isotopic analyses of soil, shale, and water extracts collected from the surface, trenches, and pits in the Mancos Shale are presented in this report. Most data are for sites on the Gunnison Gorge National Conservation Area (GGNCA) in southwestern Colorado. For comparison, data from a few sites from the Mancos landscape near Hanksville, Utah, are included. Twelve trenches were dug on the GGNCA from which 258 samples for whole-rock (total) analyses and 187 samples for saturation paste extracts were collected. Sixteen of the extract samples were duplicated and subjected to a 1:5 water extraction for comparison. A regional soil survey across the Mancos landscape on the GGNCA generated 253 samples for whole-rock analyses and saturation paste extractions. Seventeen gypsum samples were collected on the GGNCA for sulfur and oxygen isotopic analysis. Sixteen samples were collected from shallow pits in the Mancos Shale near Hanksville, Utah.

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Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Results of chemical analyses of soil, shale, and soil/shale extract from the Mancos Shale formation in the Gunnison Gorge National Conservation Area, southwestern Colorado, and at Hanksville, Utah
Series title	Open-File Report
Series number	2007-1002
Chapter	D
DOI	10.3133/ofr20071002D
Edition	Version 1.0
Year Published	2007
Language	English
Publisher	U.S. Geological Survey
Publisher location	Reston, VA
Contributing office(s)	Mineral Resources Program, Northern Rocky Mountain Science Center
Description	Report: vii, 24 p.; Tables
Country	United States
State	Colorado, Utah
Other Geospatial	Gunnison Gorge National Conservation Area, Hanksville
Online Only (Y/N)	Y
Additional Online Files (Y/N)	Y
Google Analytic Metrics	Metrics page