Unraveling the Sulfate Sources of (Giant) Gypsum Crystals Using Gypsum Isotope Fractionation Factors

@article{VanDriessche2016UnravelingTS,
  title={Unraveling the Sulfate Sources of (Giant) Gypsum Crystals Using Gypsum Isotope Fractionation Factors},
  author={Alexander E. S. Van Driessche and {\`A}ngels Canals and M. Ossorio and R. C. Reyes and Juan Manuel Garc{\'i}a‐Ruiz},
  journal={The Journal of Geology},
  year={2016},
  volume={124},
  pages={235 - 245}
}
We combine newly determined isotope fractionation factors of gypsum precipitated in the laboratory with the isotopic compositions of natural anhydrite and gypsum to unravel the sulfate sources of the giant selenite crystals in the Naica mine (Chihuahua, Mexico). Gypsum was precipitated in the laboratory from CaSO4-NaCl-H2O solutions across a broad temperature range to establish the isotopic fractionation behavior of the sulfate molecule between the solid and dissolved phase. Oxygen isotopes… Expand
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References

SHOWING 1-10 OF 47 REFERENCES
Formation of natural gypsum megacrystals in Naica, Mexico
Exploration in the Naica mine (Chihuahua, Mexico) recently unveiled several caves containing giant, faceted, and transparent single crystals of gypsum (CaSO4•2H2O) as long as 11 m. These largeExpand
Stable Isotope Systematics of Sulfate Minerals
Stable isotope studies of sulfate minerals are especially useful for unraveling the geochemical history of geological systems. All sulfate minerals can yield sulfur and oxygen isotope data. HydrousExpand
Determining gypsum growth temperatures using monophase fluid inclusions—Application to the giant gypsum crystals of Naica, Mexico
Determining the formation temperature of minerals using fluid inclusions is a crucial step in understanding rock-forming scenarios. Unfortunately, fluid inclusions in minerals formed at lowExpand
The influence of kinetics on the oxygen isotope composition of calcium carbonate
Paleotemperature reconstructions rely on knowledge of the equilibrium separation of oxygen isotopes between aqueous solution and calcium carbonate. Although oxygen isotope separation is expected onExpand
The gypsum–anhydrite paradox revisited
Abstract Despite much experimentation precipitation of anhydrite from solution in conditions similar to those occurring in sedimentary environments has not yet been reproduced in the laboratory. ToExpand
Ultraslow growth rates of giant gypsum crystals
TLDR
An advanced high-resolution white-beam phase-shift interferometry microscope is designed to measure growth rates of crystals at very low supersaturation values to gain a better understanding of crystal growth processes occurring at a geological timescale. Expand
Sulfur cycle in buried evaporites
Sulfur isotopes are potent indicators of the way in which sulfur behaves chemically during diagenesis. We have studied sulfur isotope ratios (34S/32S) from a number of minerals and compounds acrossExpand
Climatic control on the growth of gigantic gypsum crystals within hypogenic caves (Naica mine, Mexico)?
Abstract Three hypogenic caves within the Naica mine of Mexico (Cueva de los Cristales — CLC, Ojo de la Reina — OR, and Cueva de las Velas — CLV) host spectacular gypsum crystals up to 11 m inExpand
The age curves of sulfur and oxygen isotopes in marine sulfate and their mutual interpretation
Abstract Three hundred new samples of marine evaporite sulfate, of world-wide distribution, were analyzed for δ34S, and 60 of these also for δ18O in the sulfate ion. Detailed δ34S age curves forExpand
Equilibrium Oxygen, Hydrogen and Carbon Isotope Fractionation Factors Applicable to Geologic Systems
As demonstrated by the chapters in this short course, stable isotope techniques are an important tool in almost every branch of the earth sciences. Central to many of these applications is aExpand
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