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Acid Rock - Crossref

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Last Updated: 12 October 2021

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Geochemistry of natural acid rock drainage in the Mt. Evans area, Anaconda-Pintler Range, Montana, USA

This paper investigates all-natural acid rock drainage in two streams draining either side of Mount Evans, Montana. Massive light weight aluminum speeds up inferred to be hydrobasaluminite layer boulders of both streams as pH increases > 5, with adsorption of copper and REE. Concentrations and loads of liquified sulfate and micronutrient are anomalously high in a little tributary that is sourced by meltwater from a rock glacier. The S-isotope make-up of liquified sulfate in both landmarks is comparable to that of pyrrhotite in the meta-sediments, but not molybdenite in late porphyry dikes. Calculations of sulfate flux suggest a relatively quick rate of sulfide oxidation in the research study area, potentially because of exposure of fresh bedrock in the steep and just recently glaciated field location. Thematic collection: This write-up becomes part of the Hydrochemistry related to expedition and ecological issues collection offered at: https://www. lyellcollection. org/cc/hydrochemistry-related-to-exploration-and-environmental-issuesSupplementary material: https://doi. org/10. 6084/m9. figshare. c. 5649850.

Source link: https://doi.org/10.1144/geochem2021-068


Study on Damage Constitutive Model of Rock under Freeze-Thaw-Confining Pressure-Acid Erosion

The constant damage mechanics concept was adopted to acquire the damages evolution formula and constitutive design of acid-eroded rock under the coupling action of freeze-thaw and constraining pressure. Comparing the test curve's peak factor with the peak factor of the version theoretical contour, the results show that both are in appropriate contract. The damages integral model can better mirror the stress-strain optimal characteristics of rock during triaxial compression, confirming the rationality and reliability of the model and the method for establishing the design parameters. The design prolongs the damage design of rock under the coupling action of freeze-thaw and constraining pressure in the chemical environment and more discloses the damage mechanism and failing regulation of acid-corroded rock under the combining activity of freeze-thaw and constraining pressure.

Source link: https://doi.org/10.3390/app11209431


Digital Rock Extension of Laboratory Core Test Results for Acid Treatment Optimization

Abstract \ nNowadays acidizing became one of the most common approaches used to enhance the hydrocarbons manufacturing from carbonate tanks. An acid remedy infused under pressures below the development fracture pressures dissolves the rock matrix and, thus, assists in the fluid circulation. Nevertheless, the total treatment effectiveness is crucially dependent on the acid structure and injection scenario, since the various dissolution patterns are created depending on the efficient response rate of the reactive fluid and the liquid injection rate. On the various other hand, rapid shot results in uniform distribution of the acid along the treatment zone and similar consistent dissolution of the matrix. Where PVBT is defined as the amount of treatment fluid called for to be infused before the look of macroscopic circulation network linking the contrary faces of the core.

Source link: https://doi.org/10.2118/206591-ms

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions