Geology and quicksilver deposits of the New Almaden District, Santa Clara County, California, by Edgar H. Bailey and Donald L. Everhart

Bailey, E. B.; Everhart, Donald L.

doi:10.5962/bhl.title.45586

Cited by 9 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During the retorting process, Hg 2+ in cinnabar is reduced to Hg 0 (gas) and volatilized from the ore. This Hg 0 (gas) is then cooled, condensed, and captured as Hg 0 (liquid) ( 9 ). The retorting process is often incomplete, and not all of the cinnabar is converted to Hg 0 .…”

Section: Resultsmentioning

confidence: 99%

“…McDermitt was the largest Hg mine in Nevada, and production of Hg was about 10 000 000 kg ( 25 ). Ore was dominantly cinnabar, but minor elemental Hg 0 and oxychlorides (e.g., Hg 2 ClO and Hg 4 Cl 2 O) were found locally ( 9 ). Numerous piles of calcine are scattered throughout the McDermitt mine site, but have been estimated as >1 000 000 m 3 ( 8 ).…”

Section: Study Areasmentioning

confidence: 99%

“…Extraction of Hg during mining is generally carried out in a retort or a rotary furnace where Hg ore is heated to 600−700 °C, which converts cinnabar to elemental Hg 0 , the final Hg product that is sold commercially (6,9,11−13). Retorting of Hg-bearing ore is known to be an incomplete process, and as a result, calcine found at most Hg mines contains unconverted cinnabar, elemental Hg 0 , metacinnabar, and other ionic Hg byproduct compounds formed during ore retorting (5,7).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Isotopic Variability of Mercury in Ore, Mine-Waste Calcine, and Leachates of Mine-Waste Calcine from Areas Mined for Mercury

Stetson

Gray

Wanty

et al. 2009

Environ. Sci. Technol.

102

View full text Add to dashboard Cite

The isotopic composition of mercury (Hg) was determined in cinnabar ore, mine-waste calcine (retorted ore), and leachates obtained from water leaching experiments of calcine from two large Hg mining districts in the U.S. This study is the first to report significant mass-dependent Hg isotopic fractionation between cinnabar ore and resultant calcine. Data indicate that δ202Hg values relative to NIST 3133 of calcine (up to 1.52‰) in the Terlingua district, Texas, are as much as 3.24‰ heavier than cinnabar (−1.72‰) prior to retorting. In addition, δ202Hg values obtained from leachates of Terlingua district calcines are isotopically similar to, or as much as 1.17‰ heavier than associated calcines, most likely due to leaching of soluble, byproduct Hg compounds formed during ore retorting that are a minor component in the calcines. As a result of the large fractionation found between cinnabar and calcine, and because calcine is the dominant source of Hg contamination from the mines studied, δ202Hg values of calcine may be more environmentally important in these mined areas than the primary cinnabar ore. Measurement of the Hg isotopic composition of calcine is necessary when using Hg isotopes for tracing Hg sources from areas mined for Hg, especially mine water runoff.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Study Areasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Isotopic Variability of Mercury in Ore, Mine-Waste Calcine, and Leachates of Mine-Waste Calcine from Areas Mined for Mercury

Stetson

Gray

Wanty

et al. 2009

Environ. Sci. Technol.

102

View full text Add to dashboard Cite

show abstract

“…Figure 2. Index map of California showing geomorphic and tectonic provinces, location of some major faults and general area of Sea Beam survey (modified from Bailey, 1966). Martin and Emery, 1967;Greene, 1977).…”

Section: Ascension Fan-valleymentioning

confidence: 99%

“…966 S>NT> CRUZ, I9M 5T»T Of CALIFORNIA DCPT OF NATURAL RESOURCES, GEOLOGIC MAP OF CALIFORNIA, I 250DOO, SAN FRANCISCO SWEV 'Ml SANTA CRUZ SMtET, 1959 SCALE VERTICAL EXAGGERATION 4-1 ORTHOGRAPHIC DRAWING BY TAU RHO ALPHA Physiographic diagram o( Monterey submarine canyon system and adjacent areas, (drawing from Tau Rho Alpha, afterGreene, 1977). Index map of California showing geomorphic and tectonic provinces, location of some major faults and general area of Sea Beam survey (modified fromBailey, 1966). Location of Salinian block in relation to other Mesozoic basement terranes (modified fromSilver, Curray, and Cooper, 1971).…”

mentioning

confidence: 99%

Geology of the Monterey submarine canyon system and adjacent areas, offshore central California

Greene¹,

Stubblefield²,

Theberge³

1989

Open-File Report

View full text Add to dashboard Cite

Viscoplastic modelling of rainfall-driven slow-moving landslides: application to California Coast Ranges

Handwerger

Buscarnera

2023

Landslides

View full text Add to dashboard Cite

Slow-moving landslides are widely observed in mountainous areas worldwide. While most of these landslides move slowly downslope over long periods of time, some ultimately accelerate rapidly and fail catastrophically. Simulating the landslide creep movement triggered by environmental factors such as precipitation, is therefore necessary to anticipate potential damaging effects on proximal infrastructure, habitat, and life. Here, we present a physically-based model that links pore-water pressure changes in the landslide mass with a new viscoplastic constitutive law designed to capture different temporal trends in slow-moving landslides. The model accounts for landslide velocity changes caused by rainfall infiltration through the Terzaghi's effective stress principle, thus directly resolving the deformation of the active shear zone. Calibration and validation of the computations benefited from both ground-based and remote sensing data for three active landslides in the California Coast Ranges, USA. We find that our model can accurately describe both slow quasi-continuous and episodic movement commonly displayed by active landslides. Although inherent limitations of the viscoplasticity framework did not enable us to describe catastrophic landslide acceleration, our model provides versatile tools that can be used to analyze and describe distinct types of slow-moving landslide dynamics.

show abstract

Geology and quicksilver deposits of the New Almaden District, Santa Clara County, California, by Edgar H. Bailey and Donald L. Everhart

Cited by 9 publications

References 0 publications

Isotopic Variability of Mercury in Ore, Mine-Waste Calcine, and Leachates of Mine-Waste Calcine from Areas Mined for Mercury

Isotopic Variability of Mercury in Ore, Mine-Waste Calcine, and Leachates of Mine-Waste Calcine from Areas Mined for Mercury

Geology of the Monterey submarine canyon system and adjacent areas, offshore central California

Viscoplastic modelling of rainfall-driven slow-moving landslides: application to California Coast Ranges

Contact Info

Product

Resources

About

Geology and quicksilver deposits of the New Almaden District, Santa Clara County, California, by Edgar H. Bailey and Donald L. Everhart

Cited by 9 publications

References 0 publications

Isotopic Variability of Mercury in Ore, Mine-Waste Calcine, and Leachates of Mine-Waste Calcine from Areas Mined for Mercury

Isotopic Variability of Mercury in Ore, Mine-Waste Calcine, and Leachates of Mine-Waste Calcine from Areas Mined for Mercury

Geology of the Monterey submarine canyon system and adjacent areas, offshore central California

Viscoplastic modelling of rainfall-driven slow-moving landslides: application to California Coast Ranges﻿

Contact Info

Product

Resources

About

Viscoplastic modelling of rainfall-driven slow-moving landslides: application to California Coast Ranges