Effects of crystal orientation on the dissolution of calcite by chemical and microscopic analysis

Smith, M. Elliot; Knauss, Kevin G.; Higgins, Steven R.

doi:10.1016/j.chemgeo.2013.09.015

Cited by 52 publications

(63 citation statements)

References 43 publications

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“…Karoussie et al [40,41] reported similar rhombohedral shapes on calcite chips aged in stearic acid and immersed in deionized water. Smith et al [42] also showed similar rhombohedral shapes caused by dissolution on a calcite chip immersed in NaCl brine. Very recently, Abdallah and Gmira [43] demonstrated a rapid development of rhombohedral structures on Iceland spar calcite chips immersed in deionized water and NaCl brine.…”

Section: Effect Of Ph and Adsorbed Carboxylic Materialsmentioning

confidence: 77%

“…Successive retreat of calcite steps is observed with time and leads to pits deepening and coalescence of nearby pits, yielding a micro-topography of interconnected etched pits. These cleaved calcite features have a rhombic shape with similar orientation in the same cleavage plane [42]. Even under dynamic conditions, this orientation of the rhomboids is preserved, indicating preferred planes of growth and dissolution.…”

Section: Effect Of Ph and Adsorbed Carboxylic Materialsmentioning

confidence: 97%

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Effect of Ca2+, Mg2+ and SO42− ions on the zeta potential of calcite and dolomite particles aged with stearic acid

Kasha

Al-Hashim

Abdallah

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

110

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Section: Effect Of Ph and Adsorbed Carboxylic Materialsmentioning

confidence: 77%

Section: Effect Of Ph and Adsorbed Carboxylic Materialsmentioning

confidence: 97%

Effect of Ca2+, Mg2+ and SO42− ions on the zeta potential of calcite and dolomite particles aged with stearic acid

Kasha

Al-Hashim

Abdallah

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

110

View full text Add to dashboard Cite

“…Pollet-Villard et al [34] also concluded that because of a significant variation in (intrinsic) surface reactivity, it was inappropriate to use the "mean rate" approach to quantify the reactivity of crystalline materials. In contrast, some researchers have reported an intrinsic decrease of long-term dissolution rate of the considered surface due to the development of pit walls with lower surface energy [35,36].…”

Section: On Temporal Rate Variabilitymentioning

confidence: 92%

Temporal Evolution of Calcite Surface Dissolution Kinetics

et al. 2018

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Abstract:This brief paper presents a rare dataset: a set of quantitative, topographic measurements of a dissolving calcite crystal over a relatively large and fixed field of view (~400 µm 2 ) and long total reaction time (> 6 h). Using a vertical scanning interferometer and patented fluid flow cell, surface height maps of a dissolving calcite crystal were produced by periodically and repetitively removing reactant fluid, rapidly acquiring a height dataset, and returning the sample to a wetted, reacting state. These reaction-measurement cycles were accomplished without changing the crystal surface position relative to the instrument's optic axis, with an approximate frequency of one data acquisition per six minutes' reaction (~10/h). In the standard fashion, computed differences in surface height over time yield a detailed velocity map of the retreating surface as a function of time. This dataset thus constitutes a near-continuous record of reaction, and can be used to both understand the relationship between changes in the overall dissolution rate of the surface and the morphology of the surface itself, particularly the relationship of (a) large, persistent features (e.g., etch pits related to screw dislocations; (b) small, short-lived features (e.g., so-called pancake pits probably related to point defects); (c) complex features that reflect organization on a large scale over a long period of time (i.e., coalescent "super" steps), to surface normal retreat and step wave formation. Although roughly similar in frequency of observation to an in situ atomic force microscopy (AFM) fluid cell, this vertical scanning interferometry (VSI) method reveals details of the interaction of surface features over a significantly larger scale, yielding insight into the role of various components in terms of their contribution to the cumulative dissolution rate as a function of space and time.

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“…The calcite (104) surface was chosen for this study primarily to enable comparisons to the many VSI and AFM examinations of dissolution of the same surface (Hillner et al, 1993; Dove and Platt, 1996; Lea et al, 2001; Arvidson et al, 2003; Duckworth and Martin, 2004; Bisschop et al, 2006; Harstad and Stipp, 2007; Vinson et al, 2007; Ruiz-Agudo et al, 2010; Xu et al, 2010; Fischer et al, 2012; Atanassova et al, 2013; Klasa et al, 2013; Smith et al, 2013; Ueta et al, 2013; Renard et al, 2015). As will be shown, the average or modal dissolution rates measured here fall comfortably within the range of values reported in those studies.…”

Section: Introductionmentioning

confidence: 99%

Calcite dissolution rate spectra measured by in situ digital holographic microscopy

Brand

Pan

Bullard

2017

Geochimica et Cosmochimica Acta

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Digital holographic microscopy in reflection mode is used to track in situ, real-time nanoscale topography evolution of cleaved (104) calcite surfaces exposed to flowing or static deionized water. The method captures full-field holograms of the surface at frame rates of up to 12.5 s−1. Numerical reconstruction provides 3D surface topography with vertical resolution of a few nanometers and enables measurement of time-dependent local dissolution fluxes. A statistical distribution, or spectrum, of dissolution rates is generated by sampling multiple area domains on multiple crystals. The data show, as has been demonstrated by Fischer et al. (2012), that dissolution is most fully described by a rate spectrum, although the modal dissolution rate agrees well with published mean dissolution rates (e.g., 0.1 µmol m−2 s−1 to 0.3 µmol m−2 s−1). Rhombohedral etch pits and other morphological features resulting from rapid local dissolution appear at different times and are heterogeneously distributed across the surface and through the depth. This makes the distribution in rates measured on a single crystal dependent both on the sample observation field size and on time, even at nominally constant undersaturation. Statistical analysis of the inherent noise in the DHM measurements indicates that the technique is robust and that it likely can be applied to quantify and interpret rate spectra for the dissolution or growth of other minerals.

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Effects of crystal orientation on the dissolution of calcite by chemical and microscopic analysis

Cited by 52 publications

References 43 publications

Effect of Ca2+, Mg2+ and SO42− ions on the zeta potential of calcite and dolomite particles aged with stearic acid

Effect of Ca2+, Mg2+ and SO42− ions on the zeta potential of calcite and dolomite particles aged with stearic acid

Temporal Evolution of Calcite Surface Dissolution Kinetics

Calcite dissolution rate spectra measured by in situ digital holographic microscopy

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