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<span style="background-color: white;">Hi all,</span></div>
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<span style="background-color: white;">This is a reminder that we will have a colloquium today at 3:00 PM in EOA 1044, see the forwarded colloquium announcement. </span></div>
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<span style="background-color: white;">Cheers,</span></div>
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<span style="background-color: white;">Zhaohua</span></div>
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<b>From:</b> Eoas-seminar <eoas-seminar-bounces@lists.fsu.edu> on behalf of eoas-seminar--- via Eoas-seminar <eoas-seminar@lists.fsu.edu><br>
<b>Sent:</b> Monday, March 9, 2026 9:18 AM<br>
<b>To:</b> eoas-seminar--- via Eoas-seminar <eoas-seminar@lists.fsu.edu><br>
<b>Subject:</b> [Eoas-seminar] EOAS Colloquium, March 13, 2026 at 3:00 PM</div>
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<span style="font-family: Aptos, sans-serif; color: black;">Hi all,</span></p>
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<span style="font-family: Aptos, sans-serif; color: black;">I am happy to announce that we will have an EOAS colloquium this Friday, March 13, 2026. The following is the information about the colloquium:</span></p>
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<span style="font-family: Aptos, sans-serif; color: black;"><b>Speaker</b>: Drs. Michael Diamond and Emily Stewart, Florida State University</span></p>
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<p style="direction: ltr; text-align: left; text-indent: 0px; margin: 0px;"><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;"><b>Title</b>: Metamorphic Sulfur Release As A Driver Of Sustained Cooling And Mass Extinction</span></p>
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<span style="font-family: Aptos, sans-serif; color: black;"><b>Abstract</b>:</span></p>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">The emplacement of large igneous provinces may drive catastrophic volatile release, both directly through volcanic degassing and indirectly through heating of carbon and sulfur-bearing
host sediments. It is broadly assumed that sulfur injection must reach the stratosphere to drive long-term cooling, thus these indirect metamorphic sulfur emissions have been almost entirely ignored. Here we demonstrate that plausible carbon and sulfur emissions
from contact metamorphism may be sustained long enough to cause centennial-scale sulfate aerosol-driven cooling spikes of several Kelvin superimposed on millennial-scale warming from the carbon dioxide greenhouse effect. We use modeling of sediment metamorphism
along with simple carbon cycle and planetary energy balance models of the climate response to explore this relationship. Our results suggest that a metamorphic sulfur source should be considered as a driver of sustained global cooling during large igneous
province emplacement, with potential implications for Phanerozoic biotic crises such as the End-Triassic Mass Extinction.</span></p>
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<span style="font-family: Aptos, sans-serif; color: black;"><b>Time</b>: 3:00 PM, Friday, March 13, 2026</span></p>
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<span style="font-family: Aptos, sans-serif; color: black;"><b>Location</b>: EOA 1044</span></p>
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<span style="font-family: Aptos, sans-serif; color: black;"><b>Contact</b>: Prof. Zhaohua Wu (</span><span style="font-family: Aptos, sans-serif; color: rgb(12, 100, 192);">zwu@fsu.edu</span><span style="font-family: Aptos, sans-serif; color: black;">)</span></p>
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<span style="font-family: Aptos, sans-serif; color: black;">A flyer of the colloquium is also attached.</span></p>
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<span style="font-family: Aptos, sans-serif; color: black;">Cheers,</span></p>
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<span style="font-family: Aptos, sans-serif; color: black;">Zhaohua</span></p>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: 11.5pt; color: rgb(32, 31, 30);">Zhaohua Wu, Professor </span></p>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: 11.5pt; color: rgb(32, 31, 30);">Earth, Ocean, and Atmospheric Science Building, Room 6041, and</span></p>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: 11.5pt; color: rgb(32, 31, 30);">Center for Ocean-Atmospheric Prediction Studies, Room 295 </span></p>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: 11.5pt; color: rgb(32, 31, 30);">Florida State University </span></p>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: 11.5pt; color: rgb(32, 31, 30);">Tallahassee, Florida </span></p>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: 11.5pt; color: rgb(32, 31, 30);"><a style="margin-top: 0px; margin-bottom: 0px;" class="x_OWAAutoLink" id="OWA6b211de2-df07-b4f4-3808-44e9b2086330" href="mailto:zwu@fsu.edu">zwu@fsu.edu</a> </span></p>
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