Modeling stalagmite growth by first principles of chemistry and physics of calcite precipitation

Romanov, Douchko; Kaufmann, Georg; Dreybrodt, Wolfgang

doi:10.1016/j.gca.2007.09.038

Cited by 48 publications

(31 citation statements)

References 26 publications

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“…The principles of calcite precipitation and stalagmite growth were extensively described and modelled in several publications (Dreybrodt, 1999;Kaufmann, 2003;Mü hlinghaus et al, 2007;Romanov et al, 2008b) and are, therefore, only summarized briefly here. Due to the high pCO 2 values in the soil zone (up to 100,000 ppm, Kaufmann, 2003) percolating rainwater dissolves the carbonate host rock above the cave (Eq.…”

Section: Principles Of Stalagmite Growth and Calcite Precipitationmentioning

confidence: 99%

Modelling δ13C and δ18O in the solution layer on stalagmite surfaces

Scholz

Mühlinghaus

Mangini

2009

Geochimica et Cosmochimica Acta

139

132

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Section: Principles Of Stalagmite Growth and Calcite Precipitationmentioning

confidence: 99%

Modelling δ13C and δ18O in the solution layer on stalagmite surfaces

Scholz

Mühlinghaus

Mangini

2009

Geochimica et Cosmochimica Acta

139

132

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“…In the FLOW-model (Romanov et al, 2008a) one assumes a continuous supply of water creating a continuously flowing water film spreading out radially from the apex. Under such circumstances calcite deposited at the apex at t = 0 is in isotopic equilibrium with respect to both carbon and oxygen in the solution.…”

Section: Application To Isotopic D 13 C-d 18 O Records In Stalagmitesmentioning

confidence: 99%

“…Note that all curves start at the initial concentration c 0 = 5 mol/m 3 and terminate at the concentration c = c eq = 1 mol/m 3 . 2003;Mü hlinghaus et al, 2007;Romanov et al, 2008a). Here water supply in single drops with long drip intervals causes a stagnant film of supersaturated solution resting on the surface.…”

Section: Application To Isotopic D 13 C-d 18 O Records In Stalagmitesmentioning

confidence: 99%

Evolution of the isotopic composition of carbon and oxygen in a calcite precipitating H2O–CO2–CaCO3 solution and the related isotopic composition of calcite in stalagmites

Dreybrodt

2008

Geochimica et Cosmochimica Acta

Self Cite

114

115

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“…Very substantial progress has been made on modeling the external forms of speleothems using bulk precipitation kinetics and fluid dynamics (e.g. Romanov et al, 2008). The internal structure is made up of mineral grains separated by grain boundaries.…”

Section: Aggregates: Polycrystalline Bodies: Speleothemsmentioning

confidence: 99%

Speleothem microstructure/speleothem ontogeny: a review of Western contributions

White¹

2012

IJS

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Mineral ontogeny is the study of the growth and development of mineral deposits in general and, in the present context, speleothems in particular. Previous researchers, mainly in Russia, have developed a nomenclatural hierarchy based on the forms and habits of individual crystals and the assembly of individual crystals into both monomineralic and polymineralic aggegates (i.e. speleothems). Although investigations of the growth processes of speleothems are sparse, there is a large literature on growth processes of speleothem minerals and related crystals in the geochemical and materials science literature. The purpose of the present paper is to sort through the various concepts of crystal growth and attempt to relate these to observations on speleothems and to the Russian conceptual framework of mineral ontogeny. For calcite, the most common mineral in speleothems, the activation energy for two dimensional nucleation (required for the growth of large single crystals) is almost the same as the activation energy for threedimensional nucleation (which would result in the growth of many small crystals). Calcite growth is highly sensitive to minor impurities that may poison growth in certain crystallographic directions or may poison growth altogether. Extensive recent research using the atomic force microscope (AFM) provides many details of calcite growth including the transition from growth on screw dislocations to growth by two-dimensional nucleation. The deposition of aragonite speleothems requires metastable supersaturation curve and is usually ascribed to the impurities Mg 2+ and Sr 2+ . AFM studies reveal that Mg 2+ poisons calcite growth by blocking deposition sites on dislocations, thus allowing supersaturation to build up past the aragonite solubility curve. Sr 2+ precipitates as a Sr-rich nucleus with the aragonite structure which acts as a template for aragonite growth. The different morphology of gypsum speleothems can be explained by the different growth habit of gypsum. Examples of twinned growth, dendrite growth, and spherulitic growth are common in the crystal growth literature and can be used to interpret the corresponding cave forms. Interpretation of monomineralic aggregate growth follows from individual crystal mechanisms. Interpretation of polymineralic aggregate growth requires knowing the evolving chemistry which in turn requires new methods for the sampling and analysis of microliter or nanoliter quantities of fluid.

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Modeling stalagmite growth by first principles of chemistry and physics of calcite precipitation

Cited by 48 publications

References 26 publications

Modelling δ13C and δ18O in the solution layer on stalagmite surfaces

Modelling δ13C and δ18O in the solution layer on stalagmite surfaces

Evolution of the isotopic composition of carbon and oxygen in a calcite precipitating H2O–CO2–CaCO3 solution and the related isotopic composition of calcite in stalagmites

Speleothem microstructure/speleothem ontogeny: a review of Western contributions

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