Physics
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..787l&link_type=abstract
Lunar and Planetary Science, volume 27, page 787
Physics
1
Chicxulub, Devolatilization, Extinction, Global Climate/Aerosols, Impacts: Cretaceous-Tertiary
Scientific paper
Thick deposits of anhydrite at the Chicxulub impact site suggests that large quantities of sulfur oxides were released during the impact event. Oxidation of sulfur oxides emplaced in the stratosphere would produce long-lived sulfuric acid aerosols capable of substantially cooling Earth's surface. Recent radiative transfer modeling shows that a stratospheric H2SO4 loading of 5 Gt of sulfur is capable of reducing solar transmission below the photosynthesis limit of the biosphere, provided i) the sulfuric acid aerosols contain sufficient impurities, and ii) the reduction in solar transmission lasts for a sufficiently long time. Such calculations raise several questions: 1) How much impact-liberated S is transported to the stratosphere?; 2) Is S primarily in the form of SO2 or SO3?; 3) Are the required impurity levels plausible?. Each of these questions is addressed below. In general, the answers support the sulfuric acid aerosol scenario of Pope et al.
Ahrens Thomas J.
Lyons James R.
No associations
LandOfFree
Chicxulub Impact-Induced Vaporization: S and C Species and Their Affect on Global Climate 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 Chicxulub Impact-Induced Vaporization: S and C Species and Their Affect on Global Climate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chicxulub Impact-Induced Vaporization: S and C Species and Their Affect on Global Climate will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1613378