Computer Science
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1473y&link_type=abstract
Lunar and Planetary Science, volume 27, page 1473
Computer Science
1
Climate, Craters, Impacts, Shock, Vaporization
Scientific paper
The dominance of calcium sulfate minerals (anhydrite and gypsum) and calcium carbonate (calcite) in the upper 3 km of the Chicxulub section has prompted active research on the effects of their devolatilization upon impact. We present new data of vaporization criteria for anhydrite and calcite, the amount of S and C degassed during the Chicxulub impact and their effects on the global climate based on shock wave experiments, numerical simulation and thermodynamic calculations. The incipient and complete vaporization pressures are 81 +/- 7 GPa and 155 +/- 13 GPa for crystal anhydrite and the incipient and complete vaporization pressures are 54 +/- 6 GPa and 103 +/- 12 GPa for calcite crystal. About 3-20 x 10^16 gm carbon and 4-36 x 10^16 gm sulfur were degassed into the atmosphere due to the Chicxulub bolide. The global warming caused by the degassed CO2 is 0.2 degrees - 1.1 degrees C and the global cooling introduced by the degassed SO2 is 8.5 degrees - 16 degrees C.
Ahrens Thomas J.
Chen Gang
Yang Wei
No associations
LandOfFree
Shock Vaporization of Anhydrite and Calcite and the Effect on Global Climate from K/T Impact Crater at Chicxulub 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 Shock Vaporization of Anhydrite and Calcite and the Effect on Global Climate from K/T Impact Crater at Chicxulub, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock Vaporization of Anhydrite and Calcite and the Effect on Global Climate from K/T Impact Crater at Chicxulub will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1615542