Carbonate Clumped Isotope Thermometry: Applications to Carbonaceous Chondrites and Effects of Kinetic Isotope Fractionation

• Main Author: Guo, Weifu
• Format: Thesis
• Language: English
• Published: California Institute of Technology 2009
• Subjects: respiration; kinetic isotope fractionation; cryogenic carbonates; aqueous alteration; Geochemistry; FOS Earth and related environmental sciences; carbonate clumped isotope thermometry; carbonaceous chondrite; phosphoric acid digestion; speleothem; Tagish; Tagish Lake
• Online Access: https://dx.doi.org/10.7907/bwc2-rh54; https://resolver.caltech.edu/CaltechETD:etd-12182008-115035

'Clumped isotope' thermometry of carbonates in the carbonaceous chondrites (CM, CI, CR and Tagish Lake) demonstrates that aqueous alteration of their parent bodies occurred from -31 to 71°C and involved reaction with fluids having δ18OVSMOW values of -29.7‰ to 11.8‰ and δ17OVSMOW of -14.9‰...