The effect of polymorphism and magnesium substitution on oxygen isotope fractionation between calcium carbonate and water

Details The effect of polymorphism and magnesium substitution on oxygen isotope fractionation between calcium carbonate and water The effect of polymorphism and magnesium substitution on oxygen isotope fractionation between calcium carbonate and water

Aug 1969

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969gecoa..33..987t&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 33, Issue 8, pp.987-996

Physics

78

Scientific paper

Calcite, aragonite and magnesian calcite were slowly precipitated from aqueous bicarbonate solutions, and oxygen isotope fractionation factors between the precipitate and water were measured. For calcite-water at 25°C and 0°C, 1000 ln = 28.1 and 33.7, respectively, both values in excellent agreement with the Urey-Epstein paleotemperature scale. Aragonitewater at 25°C gave 28.7, implying a small but significant fractionation between aragonite and calcite. O 18 also concentrates in magnesian calcite, relative to pure calcite precipitated under the same conditions, by 0.06%. for each mole-percent MgCO 3 in calcite.

Affiliated with

Also associated with

No associations

Rating

The effect of polymorphism and magnesium substitution on oxygen isotope fractionation between calcium carbonate and water does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The effect of polymorphism and magnesium substitution on oxygen isotope fractionation between calcium carbonate and water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The effect of polymorphism and magnesium substitution on oxygen isotope fractionation between calcium carbonate and water will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1690185