Geochemistry and Mineralogy of Soils Collected in the Lower Rio Grande Valley, Texas

Open-File Report 2019-1010
By: , and 

Links

  • Document: Report (12 MB pdf)
  • Tables:
    • Table 1 (70.9 KB xlsx) - Geochemical analyses of soil samples collected in 2003–04, by element and method of analysis, lower Rio Grande valley, Texas
    • Table 2 (64.1 KB xlsx) - Geochemical analyses of soil samples collected in 2007, by element and method of analysis, lower Rio Grande valley, Texas
    • Table 3 (18.1 KB xlsx) - Univariate statistics and percentiles of analytical results for soil samples collected in 2003 and 2004, lower Rio Grande valley, Texas
    • Table 4 (19.1 KB xlsx) - Univariate statistics and percentiles of analytical results for soil samples collected in 2007, lower Rio Grande valley, Texas
    • Table 5 (31.4 KB xlsx) - Mineralogy of all soil samples collected in 2003, 2004, and 2007, lower Rio Grande valley, Texas
    • Table 6 (16.4 KB xlsx) - Summary statistics of mineral content of soils by geologic formation (Page and others, 2005) as determined by x‐ray diffraction
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Abstract

Presented in this report are the chemical and mineralogical results of a soil study conducted in the lower Rio Grande valley, Texas. Samples were collected from soils formed on Holocene alluvial flood-plain and distributary channel deposits of the Rio Grande, flood plain and meander-belt deposits of the Pliocene Goliad Formation, and the Pleistocene Lissie and Beaumont Formations. The lower Rio Grande valley is located on the old distributary delta of the Rio Grande. The watersheds on the U.S. side of the delta no longer drain into the Rio Grande but are part of a complex system of irrigation channels and wastewater drains that flow into the lower Laguna Madre. The results of the study have been used to map concealed geologic units and identify potential mosquito breeding habitat.

Suggested Citation

Whitney, H.A., Solano, F., and Hubbard, B.E., 2019, Geochemistry and mineralogy of soils collected in the lower Rio Grande valley, Texas: U.S. Geological Survey Open-File Report 2019–1010, 92 p., https://doi.org/10.3133/ofr20191010.

ISSN: 2331-1258 (online)

Study Area

Table of Contents

  • Abstract
  • Introduction
  • Regional Setting
  • Previous Studies
  • Sample Collection and Analysis
  • Geochemical Analysis
  • Mineral Analysis
  • Conclusions
  • Acknowledgments
  • References Cited

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Geochemistry and mineralogy of soils collected in the lower Rio Grande valley, Texas
Series title Open-File Report
Series number 2019-1010
DOI 10.3133/ofr20191010
Year Published 2019
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Eastern Mineral and Environmental Resources Science Center
Description Report: v, 92 p.; 6 Tables
Country United States
State Texas
Other Geospatial Rio Grande Valley
Online Only (Y/N) Y
Additional Online Files (Y/N) Y