Events

JSG Happenings

Events

July 2012 September 2012
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UTIG Brown Bag Talk: Enrica Quartini

October, 24 2017

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Informal weekly presentations by UTIG students, researchers. Bring your lunch!

DeFord Lecture: Daniel Fisher

October, 26 2017

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: Karen Fischer (Brown University)

October, 27 2017

Time: 10:30 AM - 11:30 AM
Location: PRC ROC Room 1.603

Watch live: http://bit.ly/2itV6yb

Title: What puts the “plate” in plate tectonics?

Abstract: The paradigm of plate tectonics is fundamental to our understanding of the Earth, yet the question of what makes the lithosphere “plate-like” remains unanswered. As Earth’s outer thermal boundary layer, the lithosphere derives its high viscosity largely from its cold temperatures, relative to the warmer asthenosphere. However, the roles of partial melt and volatiles in further reducing asthenospheric viscosity are still debated. Seismic wave conversions generated by a velocity gradient within the lithosphere-asthenosphere transition, combined with surface wave tomography, provide key constraints on these questions.

Data from the EarthScope USArray has enabled imaging of the lithosphere-asthenosphere boundary (LAB) and discontinuities internal to the lithosphere across the contiguous U.S. Strong S-to-P (Sp) conversions from the base of the thin lithosphere in the tectonically active western U.S. indicate a vertically-localized negative velocity gradient (<40 km) that is consistent with ponded partial melt, embedded in a broader thermal gradient. In contrast, beneath the thick, stable and ancient cratonic lithosphere in the center of the continent, the typical absence of clear Sp conversions is consistent with a gradual shear velocity decrease over >80 km; patches with a sharper gradient are spatially intermittent. The very gradual cratonic lithosphere-asthenosphere boundary can be explained by temperature without the effects of higher volatile content or partial melt in the asthenosphere. Middle-aged lithosphere in the eastern U.S., largely undisturbed since Mesozoic rifting, manifests an LAB velocity gradient of intermediate sharpness, except for a few zones that correlate with low mantle velocities and the possible presence of partial melt. Across active plate boundaries, variations in the depth and amplitude of the LAB velocity gradient across rifts and strike-slip fault systems indicate localized deformation in the deep mantle lithosphere. Within the cratonic mantle lithosphere, the most widespread feature is a sub-horizontal negative velocity gradient, typically at depths of 70-90 km, that can be explained by volatile-rich products of now-solid partial melt that once ponded beneath the carbonated peridotite solidus.

Learn more about \">Karen Fischer

UTIG Host: Thorsten Becker

Hot Science - Cool Talk \"Human Mating Behavior\"

October, 27 2017

Time: 7:00 PM - 8:15 PM
Location: Student Activity Center (SAC)

If we all want love, why is there so much conflict in our most cherished relationships? What is evolutionary psychology and how can it provide insights to human mating behavior? Dr. Buss shares insights on how conflict, competition, and manipulation pervade human mating. Dr. Buss is signing his newest book \"The Evolution of Desire\" from 5:45 - 6:30 during Cool Activities. The UT Coop will have books for sale at the signing.

Due to the content of this talk, we recommend it for high school seniors, college students and adults only.

UTIG Brown Bag Talk: Naoma McCall & Sean Gulick

November, 01 2017

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Informal weekly presentations by UTIG students, researchers. Bring your lunch!

DeFord Lecture: Brian Schubert

November, 02 2017

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: David Kring (Lunar and Planetary Institute)

November, 03 2017

Time: 10:30 AM - 11:30 AM
Location: PRC ROC Room 1.603

Watch live: http://bit.ly/2gD1Hpy

Title: The Chicxulub Crater and Implications for the Impact – Origin of Life Hypothesis

Abstract: The ~180 km-diameter Chicxulub impact crater, located on the Yucatán Peninsula of Mexico, is famously linked to the extinction of dinosaurs and most other forms of life on Earth nearly 66 million years ago. The International Ocean Discovery Program and International Continental Scientific Drilling Program recently teamed up to drill into the crater to test models of how such large impact basins form and how the hydrothermal systems they harbor may have provided critical biological niches. While past attention has often been on the environmental calamity the Chicxulub impact produced during the first day of the Cenozoic, it is now recognized that the crater and the hydrothermal system it hosted may be proxies for the geological processes that shaped the Hadean and the earliest evolution of life on Earth.

Learn more about David Kring: http://www.lpi.usra.edu/lpi/kring/

UTIG Host: Gail Christeson

UTIG Brown Bag Talk: Cliff Frohlich

November, 08 2017

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Informal weekly presentations by UTIG students, researchers. Bring your lunch!

DeFord Lecture: Hrvoje Measki

November, 09 2017

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: Andrew Kemp (Tufts University)

November, 10 2017

Time: 10:30 AM - 11:30 AM
Location: PRC ROC Room 1.603

Watch live: http://bit.ly/2i08feE


Learn more about Andrew Kemp: http://eos.tufts.edu/people/kemp.htm

UTIG Host: Fred Taylor

Annual Tailgate Party

November, 11 2017

Time: 3:00 PM - 5:00 PM
Location: Holland Family Student Center, Jackson Geological Sciences Building

Join us for the Annual Tailgate Party at the Jackson School for the Longhorns vs. Kansas Jayhawks football game.

UTIG Brown Bag Talk: Lawrence Lawver

November, 15 2017

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Informal weekly presentations by UTIG students, researchers. Bring your lunch!

DeFord Lecture: Kitty Milliken

November, 16 2017

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: Yuko Okumura (UTIG)

November, 17 2017

Time: 10:30 AM - 11:30 AM
Location: PRC ROC Room 1.603

Learn more about Yuko Okumura

UTIG Host: Pedro Di Nezio