linkedin post 2022-06-19 04:12:02

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CHEMICAL EQUILIBRIA. “For any of these minerals, there is a certain equilibrium concentration, defined thermodynamically by the concentration at which the free energies of the species on both sides of the dissolution reaction balance exactly or kinetically where the rate of dissolution is equal to the rate of precipitation.” https://lnkd.in/eTGK5eZN View in LinkedIn
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linkedin post 2022-06-19 04:15:51

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METAMORPHIC PROCESSES. “Dynamic recrystallization is an important process during deformation of many rock forming minerals, occurring under a wide range of metamorphic conditions. It can strongly influence mechanical properties and the development of microstructure.” https://lnkd.in/eR_euCnr View in LinkedIn
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linkedin post 2022-06-19 04:17:06

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CRYSTAL ENERGETICS. “Dynamic recrystallization and recovery are fundamental processes in the crystal plastic deformation of rocks and minerals, whereby the elastic strain energy associated with linear lattice defects (i.e., dislocations) is minimized by the reorganization of those defects into low-energy configurations.” https://lnkd.in/e36ZB3JP View in LinkedIn
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linkedin post 2022-06-19 04:19:03

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BEYOND ETCH PLATES. “During dynamic recrystallization (DRX), strain hardening due to the accumulation of lattice defects is counteracted by both the creation and migration of grain boundaries, and the nucleation of new, strain-free recrystallized grains.” https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JB016201 View in LinkedIn
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linkedin post 2022-06-19 04:19:55

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“FIGURE 1. Schematic representation of dynamic recrystallization in a deforming polycrystal. (a) Dislocations accumulate heterogeneously under an applied stress. (b and c) High-strain relict grains (gray) are progressively consumed by the nucleation of strain-free recrystallized grains (white), formed by grain boundary bulging (red arrows) and subgrain rotation (yellow arrows) nucleation mechanisms, causing an increase in the recrystallized fraction, X.” https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JB016201 View in LinkedIn
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linkedin post 2022-06-19 04:24:17

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AQUEOUS RECRYSTALLIZATION. “Clay minerals are characterized by tetrahedral sheets occupied by Si and subordinately Al and Fe3+. These sheets join together along the surfaces with different combinations, giving rise to different layers, which in turn join to form different clay minerals. In the various clay minerals, the layers have different layer charges as a function of the substitution of higher charge cations with cations with lower charges (e.g., replacement of Si4+ with Al3+ in tetrahedral sheets).” https://www.mdpi.com/2075-163X/11/10/1057/htm View in LinkedIn
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linkedin post 2022-06-19 04:27:38

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IONIC SOURCES. “In humid regions the important amounts of calcium, magnesium, sodium, and potassium added yearly by rain may be expected to influence the composition of the soil water and thereby the cations in the exchange positions of soil clay minerals. The acquisition of cations by clay minerals may slow down chemical weathering.” https://lnkd.in/ete8CApd View in LinkedIn
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