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Geomechanical Characterization of Evaporitic Rocks
In general, evaporites are mono-mineral rocks formed by minerals of density <2.3 g/cm 3, Mohs hardness <3, high solubility and easy recrystallization under normal temperature and pressure conditions, low thermal conductivity, low strength, high deformability, and time-dependent behavior (creep, expansion, etc.).. These characteristics strongly influence the …
Dynamic dissolution of halite rock during flow of diluted …
[1] The dynamic dissolution pattern of halite salt rocks taken from coreholes near the Dead Sea was studied in laboratory-scale experiments. When unsaturated solution …
Halite Mineral | Properties, Formation, Uses and Deposits
Halite, also known as rock salt or sodium chloride (NaCl), is a naturally occurring mineral that holds significant importance in various aspects of human life. This crystalline mineral is composed of equal parts sodium and chlorine ions and is renowned for its distinctive cubic crystal structure. Halite is not only a common mineral found in geological formations but also a …
Halite Mineral | Uses and Properties
Halite: Halite from Retsof, New York. Specimen is approximately 3 inches (7.6 centimeters) across. What is Halite? Halite is the mineral name for the substance that everyone knows as "salt." Its chemical name is sodium chloride, and a rock …
EXERCISES IN THE GEOCHEMICAL KINETICS OF …
straight line that passes closest to all the points, by either (i) using any computer program (e.g., Excel, Lotus 1-2-3, Cricket Graph, etc.) to calculate the linear least squares regression line; the ... the halite dissolution reaction from the lab data. 2. As Berner (1980) notes, one way totest whether the reaction istransport controlled isto ...
Dynamic dissolution of halite rock during flow of diluted …
[1] The dynamic dissolution pattern of halite salt rocks taken from coreholes near the Dead Sea was studied in laboratory-scale experiments. When unsaturated solution (with respect to halite) flowed through salt cores, dissolution developed along preferential flow pathways in a channel structure.
Massive-Scale Dissolution, Conveyance, and Disposal of …
The Dead Sea (DS) potash industry halite waste accumulation rate is estimated at 0.2 m year –1, across 140 km 2 of evaporation ponds in Israel and Jordan, totaling ∼28 million m 3 year –1.As accommodation in the southern DS basin space is nearly exhausted, it is planned in Israel to dredge newly precipitated salt and convey it in a solid state to the northern DS basin …
Properties, Types, Composition, Formation
Evaporites are a type of sedimentary rock that forms through the evaporation of water, leaving behind dissolved minerals and salts. These rocks typically consist of minerals such as halite (rock salt), gypsum, anhydrite, and various potassium salts. Evaporites are often associated with arid or semi-arid environments where the rate of evaporation exceeds the rate …
Dissolution Experiment of the Halite of Palaeogene …
halite deposit from solid to liquid, which simplifies the mining process, as well as increases mining efficiency and cuts the mining cost. The dissolution rate of halite is an important technique index of dissolution mining. The rate is concerned with dissolution property, the grade of halite deposit and the nature of solvent [2, 3].
Dynamic dissolution of halite rock during flow of …
Dynamic dissolution of halite rock during flow of diluted saline solutions N. Weisbrod,1 C. Alon-Mordish,1 E. Konen,2 and Y. Yechieli1,3 Received 10 February 2012; revised 4 April 2012; accepted 6 April 2012; published 10 May 2012. [1] The dynamic dissolution pattern of halite salt rocks taken from coreholes near the Dead Sea was studied in lab-
Salt precipitation and dissolution in the late
The chemical composition and δ 37 Cl of pore fluids from the ICDP core drilled in the deepest floor of the terminal and hypersaline Dead Sea, and halites from the adjacent Mount Sedom salt diapir, are used to establish the dynamics of halite precipitation and dissolution during the last interglacial and glacial periods. Between ∼132 and 116 thousand years ago …
Experimental pressure solution in halite: The effect of grain
To investigate the mechanisms and kinetics of pressure solution, we measured deformation at contacts between polished convex lenses of halite and polished flat lenses of either halite or fused ...
Halite dissolution derived brines in the vicinity of a Permian …
Besides, a high concentration of Cl − may originate from the dissolution of chloride-rich minerals such as halite or connate marine water entrapped in sediments (Zaidi et al., 2015;Ammar et al ...
Effect of the vapor phase on the salinity of halite-bearing …
After verifying the numerical model of Sterner et al. (1988) for vapor-saturated halite solubility, we use synthetic fluid inclusions to investigate the effect of the vapor phase on the halite dissolution temperature and inferred salinity of halite-bearing FI. To accomplish this, we synthesized fluid inclusions containing either 35 or 53.3 wt.% NaCl over a wide range of …
Rates of halite dissolution in natural brines: Dead Sea …
The present study is a laboratory attempt to assess the dissolution rates of natural halite in dilutions of DS brines, 10% to 90% by volume, under stirring and under no …
Sources of basinal and Mississippi Valley-type
The initial composition estimated at the intersection of the lin- ear trend and halite--dissolution line has a Nad~fi¢it value of --101. If halite dissolution was the only mechanism responsible for high salinity (average C1 concentration = 165 g/l), a Nadeficit value of --700 would be obtained (line a), whereas brines origi- nated solely from ...
Experimental studies of halite dissolution kinetics, 1 The …
Variation of halite dissolution rates with tracemetal concentration Halite dissolution rates measured in the presence of ZnCl2, COC12, (~rC13, CdC12, PbC12 and …
Plot of TDS versus Na-Cl relative to the halite …
Download scientific diagram | Plot of TDS versus Na-Cl relative to the halite dissolution line. Spring samples are included. from publication: Tracing regional flow paths to major springs in Trans ...
Rates of halite dissolution in natural brines: Dead Sea …
Without defining halite dissolution rates, it was concluded that the dissolution pattern is correlated to rock fracture morphology, flow structure and mineralogic composition of rock matrix. Weisbrod et al. (2012) studied the dissolution pattern of halite salt rocks in natural solutions, in 70% to 95% (by volume) dilutions of Dead Sea brines.
Halite karst geohazards
Here, extensive Triassic-age halite deposits are present in two units: the lower, Northwich Halite Member and the upper, Wilkesley Halite Member. Dissolution of the lower unit in north Cheshire has created subsidence features, including water-filled depressions that are referred to as the 'Knutsford Group' of meres (lakes).
Solid inclusions of halite in quartz: evidence for the halite trend
The halite trend (Fig. 1) was first described for the Naica deposit (Erwood et al., 1979) and was then identified by Cloke and Kesler (1979) in other deposits including Panguna (Eastoe, 1978) and Granisle–Bell (Wilson, 1978) and has also been noted in the Capitan pluton (Campbell et al., 1995).Evidence for the halite trend from fluid inclusion microthermometry at …
Halite
Salt- and shale-detached gravity-driven failure of continental margins. Mark G. Rowan, in Regional Geology and Tectonics (Second Edition), 2020 Diapir dissolution. Halite and some of the other salt minerals are highly soluble, so dissolve in the presence of undersaturated water. This occurs primarily in the phreatic zone due to the circulation of meteoric groundwater (e.g. …
crusher dan tambangbisnis
dissolution stoishiometric ligne halite. dissolution stoishiometric ligne halite. stoishiometric dissolution line halite. the halite—sylvite cotectic, which is the temperature of sylvite dissolution (3000C), and the temperature at which the halite dissolves (4500C), are required as-stoishiometric dissolution line halite-
Massive-Scale Dissolution, Conveyance, and Disposal of …
The Dead Sea (DS) potash industry halite waste accumulation rate is estimated at 0.2 m year-1, across 140 km 2 of evaporation ponds in Israel and Jordan, totaling ∼28 million m 3 year-1.As accommodation in the southern DS basin space is nearly exhausted, it is planned in Israel to dredge newly precipitated salt and convey it in a solid state to the northern DS basin …
Photomicrograph of halite. a Halite cornet and chevron …
The gradational and sharp boundaries between clear and cloudy halite are related to the dissolution rate of halite. Rapid dissolution leads to the formation of sharp, vertical dissolution lines ...
A Plea for More Skepticism Toward Fluid Inclusions: Part II
Quartz-hosted brine inclusions that homogenize via halite dissolution occur in many magmatic-hydrothermal systems. In many cases their calculated minimum entrapment pressures are geologically unrealistically high, which has been interpreted to reflect accidental entrapment of halite crystals, and hence, to indicate halite saturation.
Halite | Common Minerals
Halite gets its name from 'hals', the Greek name for salt. It is difficult to overstate the past importance of salt in both human and domesticated animal consumption. Without salt, widespread animal domestication (and hence modern civilization) could not have arisen. The sodium from salt is necessary for cells to function, so people need ...
Dissolution and precipitation of fractures in soluble rock
Dijk et al. (2002)examined the dissolution patterns in an articial halite fracture in the laboratory. Using nuclear magnetic resonance imaging, they reported ow and density in the evolving …
A Plea for More Skepticism Toward Fluid Inclusions: Part II
The residual vapor phase at halite dissolution for halite-bearing fluid inclusions may lead to an over-estimation of the bulk fluid salinity by over 3 % at elevated temperature conditions ...