Environmental Engineering Reference
In-Depth Information
on a region, by
filling pre-effusive topography in some cases, and by tracking
surfaceorgroundwaterinothers.
Globally, volcaniclastic eruptions are now recognized to have potential for
climate-changing atmospheric effects. Their eruptions can inject material into the
stratosphere, either from their eruptive plume or with the help of regional weather
effects produced by the large igneous province itself.
A signi
c community will be estimating the
volatile load of these eruptions. Some efforts have been made in Siberia, and
demonstrate that Siberian volcaniclastics carried signi
cant next step for the scienti
cant sulfur, chlorine and
fluorine from the
fluids in their eruption-driving aquifer (Black
et al
.,
2012
).
Further,
cient to destroy
ozone (Black
et al
.,
2013
) through reaction in the bedrock and the eruptive plume
(Svensen
et al
.,
2009
; Black
et al
., 2014, this volume).
The volcaniclastics in
these eruptions naturally produced halocarbons suf
flood basalts, therefore, may be the major missing link
between
flood basalts and extinctions. The underlying cause may be climate-
changing volatiles sourced from continental crustal rocks that chamber the
ood
basalt magmas, which are missing in ocean basins.
References
Black, B.A., Elkins-Tanton, L.T., Rowe, M.C. and Ukstins Peate, I. (2012). Magnitude and
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373.
Black, B.A., Lamarque, J.-F., Shields, C., Elkins-Tanton, L. and Kiehl, J. (2013). Acid
rain and ozone depletion from pulsed Siberian Traps magmatism.
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67
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Black, B.A., Lamarque, J.-F., Shields, C., Elkins-Tanton, L., and Kiehl, J. (2015). Environ-
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volume.
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