Growth of dolomite crystals

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ID: 297058
1966
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Abstract
Surfaces of growing crystals of dolomite from Deep Springs Lake, Calif., are Ca- rich. The surfaces of the crystals have a Ca to Mg ratio in excess of 4; the surface layer is about 100A thick and approaches the composition of dolomite at its inner side. Successive fractions have been dated by C-14 and thus place a time parameter on the introduction of magnesium into the rhombohedral carbonate lattice. The crystals grow by the production of a transient surface layer which can be envisaged as a moving boundary through which the magnesium must move by solid-state diffusion with concomitant migration of calcium in the opposite direction. The formation of dolomite having a rudimentary R ~3~ space group takes place at the inner side of the surface layer. Crystal growth models are considered, along with implications concerning rates of growth and diffusion, solubility, and isotopic fractionations.
Reference Key
openalex_W2330101838 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors M. N. A. Peterson, C. C. vonderBorch, G. S. Bien
Journal american journal of science
Year 1966
DOI
10.2475/ajs.264.4.257
URL
https://ajsonline.org/article/59123.pdf
Keywords Keywords not found

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