Events
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JSG | BEG | UTIG | EPS |
DeFord Lecture: Peter Clift
Start:May 2, 2019 at 4:00 pm
End:
May 2, 2019 at 5:00 pm
Location:
JGB 2.324
UTIG Seminar Series: Natalya Gomez, McGill University
Start:May 3, 2019 at 10:30 am
End:
May 3, 2019 at 12:00 pm
Location:
PRC ROC Room 1.603
Contact:
Constantino Panagopulos, costa@ig.utexas.edu, 512-471-0160
View Event
Speaker: Natalya Gomez, McGill University
Host: Ginny Catania
Title: Ice, Sea Level and the Solid Earth in Antarctica
Abstract: Marine sectors of the Antarctic Ice Sheet are prone to unstable retreat in a warming climate. Observation and modeling-based studies suggest that these sectors have collapsed in the past and have the potential to contribute significantly to sea-level change in coming centuries, but the extent and timing of collapse remains uncertain. Constraining ice cover changes in Antarctica is challenging because the solid Earth, water and ice systems are strongly linked, and modern measurements of these systems contain a large signal from glacial isostatic adjustment (GIA) due to past ice mass changes. Furthermore, Earth structure beneath the Antarctic Ice Sheet is characterized by significant lateral variability. This talk will focus on the physics of sea-level changes, glacial isostatic adjustment and solid Earth deformation following variations in the distribution of ice and water on the Earth’s surface, and the implications of these changes on the past and future stability and dynamics of the Antarctic Ice Sheet.
Master's Saturday
Start:May 4, 2019 at 8:00 am
End:
May 4, 2019 at 2:00 pm
Location:
JGB 2.324
Brown Bag: David Wiggs & Michael Christoffersen, Jackson School
Start:May 7, 2019 at 12:00 pm
End:
May 7, 2019 at 1:00 am
Location:
PRC ROC Room 1.603
Contact:
Kelly Olsen, kolsen@utexas.edu
Informal weekly presentations by UTIG students and researchers. Bring your lunch!
Speaker 1: David Wiggs, Undergraduate Student, Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin
Title: Quantitative uncertainty assessment of rock facies from inversion and rock-physics modeling
Speaker 2: Michael Christoffersen, Undergraduate Student, Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin
Title: Radar sounding temperate glaciers in southeastern Alaska
De Ford Lecture Series: Greta Wells
Start:May 9, 2019 at 4:00 pm
End:
May 9, 2019 at 5:00 pm
Location:
JGB 2.324
UT Energy Networking Event in Denver
Start:May 15, 2019 at 5:30 pm
End:
May 15, 2019 at 7:00 pm
Location:
Lustre Pearl, 1315 26th St, Denver, CO 80205
Contact:
Kristen Tucek, ktucek@jsg.utexas.edu, 512-471-2223
UTIG Special Seminar: Sumit Verma, UTPB
Start:May 17, 2019 at 3:00 pm
End:
May 17, 2019 at 4:00 pm
Location:
PRC ROC Room 2.201
Contact:
Rosalind Gamble, rgamble@ig.utexas.edu
Speaker: Sumit Verma, Assistant Professor of Geophysics, Geology Program Coordinator, Department of Physical Sciences, The University of Texas Permian Basin
Host: Mrinal Sen
Title: Delineation of early Jurassic aged sand dunes and paleo-wind direction in southwestern Wyoming using seismic attributes, inversion, and petrophysical modeling
Abstract: Moxa Arch is a potential site for carbon sequestration in the state of Wyoming, recognized by the US Department of Energy. In this paper, we primarily focus on improving our understanding of the geology, including lithofacies and depositional environment, of Nugget Sandstone- a potential carbon storage reservoir, by integrating results from three different techniques including seismic attributes, seismic inversion, and petrophysical modeling. The Nugget Sandstone formation is primarily an eolian sandstone, deposited in the early Jurassic and is present throughout southwestern Wyoming. Seismic attribute analysis indicated the presence of NW-SE trending elongated geological features in the Nugget Sandstone interval. Based on our seismic and well log analyses, we interpret these features to be eolian sand dunes, which is consistent with the previous publications indicating a general NE-SW paleo-wind direction at the time of the deposition of Nugget Sandstone and other equivalent formations in Wyoming and Utah. The petrophysical analysis indicate that the Nugget Formation is mostly composed of quartz; however, clay and evaporites such as anhydrite and halite are also present. The acoustic impedance, derived from well logs indicate that high porosity dunal sandstones correspond to low impedance values whereas interdunal evaporites are characterized by high impedance values. Combined analysis of seismic attribute coherence and inverted P-impedance discriminates the dunal and interdunal deposits in 3D seismic data volume; the low coherence defines the extent of low impedance dunal deposits. Detailed analysis of the curvature attribute from the seismic data indicates a dominant paleo-wind direction of approximately N225o.
Alumni Reception during AAPG in San Antonio
Start:May 20, 2019 at 6:00 pm
End:
May 20, 2019 at 8:00 pm
Location:
Casa Rio, 430 E Commerce St, San Antonio, TX 78205
Contact:
Kristen Tucek, ktucek@jsg.utexas.edu, 512-471-2223
UTIG Seminar Series: Cornelia Rasmussen, UTIGApril, 26 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Cornelia Rasmussen, Research Associate, University of Texas Institute for Geophysics Host: Krista Soderlund Title: The Emerging Field Of Position-Specific Isotope Analysis: Applications in chemical forensics, exobiology, geo- and environmental sciences Abstract: Complex organics can be found all over our solar system and within each living thing on our planet, be it as part of its physiology or as a contaminant. However, different processes can lead to the formation of chemical identical molecules. This makes answering a number of scientific questions challenging. One example is distinguishing between biotic and abiotic molecules, hence hindering life detection on early Earth but especially on other planetary bodies, such as on Mars, Titan, Enceladus and on meteorites where organics have been detected. Moreover, tracing molecules as they move through the environment can be demanding, yet is essential in studying the flow of organic molecules as well as correlating pollutants with their source. Novel tools to address these challenges are currently being developed. Especially, the emerging field of position-specific isotope analysis is beginning to grant access to the unique intramolecular carbon (13C/12C) isotope fingerprint preserved in complex molecules. This fingerprint can be applied in various scientific disciplines, ranging from forensics to exobiology, geo- and environmental sciences, including geo health. Nuclear magnetic resonance spectroscopy (NMR) has the potential to become a key player in this research area, as it allows the analysis of organics within complex mixtures, all without the need to fragment the molecule into single carbon units or the combustion of the molecule of interest. We have been developing several NMR tools that allow us to investigate the intramolecular carbon isotope distribution within various molecule classes and to test the central hypothesis that the position-specific carbon isotope distribution within complex organics depends on a molecule’s source and formation history. |
Planetary Habitability Seminar SeriesApril, 29 2024Time: 1:00 PM - 2:00 PMLocation: PMA 15.216B UT Center for Planetary Systems Habitability Seminar Series. See website for speaker schedule and more details: View Events Join remotely: https://utexas.zoom.us/j/94052130734 In person: Classroom 15.216B, Physics, Math and Astronomy Bldg. UT Austin, Department of Astronomy 2515 Speedway, Stop C1400 Austin, Texas 78712-1205 |
UTIG Discussion Hour: Kristian Chan - PhD Talk (UTIG)April, 30 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |