Temporal Evolution of Calcite Surface Dissolution Kinetics

Simple item page
dc.citation.articleNumber256en_US
dc.citation.issueNumber6en_US
dc.citation.journalTitleMineralsen_US
dc.citation.volumeNumber8en_US
dc.contributor.authorBibi, Irshaden_US
dc.contributor.authorArvidson, Rolf S.en_US
dc.contributor.authorFischer, Corneliusen_US
dc.contributor.authorLüttge, Andreasen_US
dc.date.accessioned2018-09-26T14:52:41Zen_US
dc.date.available2018-09-26T14:52:41Zen_US
dc.date.issued2018en_US
dc.description.abstractThis 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 μm2) 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.en_US
dc.identifier.citationBibi, Irshad, Arvidson, Rolf S., Fischer, Cornelius, et al.. "Temporal Evolution of Calcite Surface Dissolution Kinetics." <i>Minerals,</i> 8, no. 6 (2018) MDPI: https://doi.org/10.3390/min8060256.en_US
dc.identifier.digitalminerals-08-00256en_US
dc.identifier.doihttps://doi.org/10.3390/min8060256en_US
dc.identifier.urihttps://hdl.handle.net/1911/102710en_US
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.rightsThis is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subject.keywordcalciteen_US
dc.subject.keywordsurfaceen_US
dc.subject.keywordkineticsen_US
dc.subject.keywordrate spectraen_US
dc.subject.keywordretreat velocityen_US
dc.subject.keyworddissolutionen_US
dc.titleTemporal Evolution of Calcite Surface Dissolution Kineticsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
minerals-08-00256.pdf
Size:
3.35 MB
Format:
Adobe Portable Document Format
Download
Collections
Faculty Publications
Earth, Environmental and Planetary Sciences Publications