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Title: Geology and alteration of the Baltazor Hot Springs and Painted Hills Thermal Areas, Humboldt County, Nevada

Abstract

The Baltazor Hot Springs KGRA and nearby Painted Hills thermal area are situated in Humboldt County, northwestern Nevada along the northwestern margin of the Basin and Range province. The oldest rocks exposed in the Baltazor area are eugeosynclinal metasedimentary and subordinate metavolcanic rocks of Permian to Triassic age intruded by Cretaceous diorite and quartz diorite. These are overlain by a thick volcanic and volcaniclastic sequence of Miocene through Pliocene age. Pre-Tertiary rocks are not exposed in the Painted Hills. Principal structures in the Baltazor area are intersecting high-angle normal faults which trend northerly and northwesterly. Quaternary landslides are dominant in the Painted Hills, although northerly- and northwesterly-trending high-angle faults are also present. Hydrothermal alteration and mineralization at Baltazor and in the Painted Hills are of several different styles and ages. Copper-bearing quartz veins in pre-Tertiary rocks antedate Cenozoic volcanism and sedimentation. The heat source for thermal phenomena and alteration in both areas is probably deep fault-controlled fluid circulation coupled with an abnormally high regional thermal gradient. (MHR)

Authors:
Publication Date:
Research Org.:
Utah Univ., Salt Lake City (USA). Research Inst.
OSTI Identifier:
5648027
Report Number(s):
DOE/ET/28392-36
DOE Contract Number:  
EG-78-C-07-1701
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; HOT SPRINGS; HYDROTHERMAL ALTERATION; NEVADA; GEOLOGY; CALCITE; GEOLOGIC FAULTS; KGRA; LANDSLIDES; MINERALIZATION; OPALS; QUARTZ; SEDIMENTS; SINTERS; VOLCANIC ROCKS; VOLCANISM; ALKALINE EARTH METAL COMPOUNDS; CALCIUM CARBONATES; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBONATES; CHALCOGENIDES; GEOLOGIC STRUCTURES; IGNEOUS ROCKS; MINERALS; NORTH AMERICA; OXIDES; OXYGEN COMPOUNDS; ROCKS; SEDIMENTARY ROCKS; SILICA; SILICON COMPOUNDS; SILICON OXIDES; THERMAL SPRINGS; USA; WESTERN REGION; Geothermal Legacy; 150201* - Geology & Hydrology of Geothermal Systems- USA- (-1989)

Citation Formats

Hulen, J B. Geology and alteration of the Baltazor Hot Springs and Painted Hills Thermal Areas, Humboldt County, Nevada. United States: N. p., 1979. Web. doi:10.2172/5648027.
Hulen, J B. Geology and alteration of the Baltazor Hot Springs and Painted Hills Thermal Areas, Humboldt County, Nevada. United States. https://doi.org/10.2172/5648027
Hulen, J B. 1979. "Geology and alteration of the Baltazor Hot Springs and Painted Hills Thermal Areas, Humboldt County, Nevada". United States. https://doi.org/10.2172/5648027. https://www.osti.gov/servlets/purl/5648027.
@article{osti_5648027,
title = {Geology and alteration of the Baltazor Hot Springs and Painted Hills Thermal Areas, Humboldt County, Nevada},
author = {Hulen, J B},
abstractNote = {The Baltazor Hot Springs KGRA and nearby Painted Hills thermal area are situated in Humboldt County, northwestern Nevada along the northwestern margin of the Basin and Range province. The oldest rocks exposed in the Baltazor area are eugeosynclinal metasedimentary and subordinate metavolcanic rocks of Permian to Triassic age intruded by Cretaceous diorite and quartz diorite. These are overlain by a thick volcanic and volcaniclastic sequence of Miocene through Pliocene age. Pre-Tertiary rocks are not exposed in the Painted Hills. Principal structures in the Baltazor area are intersecting high-angle normal faults which trend northerly and northwesterly. Quaternary landslides are dominant in the Painted Hills, although northerly- and northwesterly-trending high-angle faults are also present. Hydrothermal alteration and mineralization at Baltazor and in the Painted Hills are of several different styles and ages. Copper-bearing quartz veins in pre-Tertiary rocks antedate Cenozoic volcanism and sedimentation. The heat source for thermal phenomena and alteration in both areas is probably deep fault-controlled fluid circulation coupled with an abnormally high regional thermal gradient. (MHR)},
doi = {10.2172/5648027},
url = {https://www.osti.gov/biblio/5648027}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {12}
}