Events
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JSG | BEG | UTIG | EPS |
UT Paleo Seminar: Drs. Lisa Boucher and Chris Sagebiel
Start:September 2, 2021 at 11:00 am
End:
September 2, 2021 at 12:00 pm
Location:
JGB 4.102
Contact:
David Ledesma, ledesma-david@utexas.edu
An introduction to the vertebrate and invertebrate paleontology collections at UT
Drs. Lisa Boucher and Chris Sagebiel
Jackson School of Geosciences
The University of Texas at Austin
Zoom Link: https://utexas.zoom.us/j/
DeFord Lecture: Greg Stock
Start:September 2, 2021 at 4:00 pm
End:
September 2, 2021 at 5:00 pm
Location:
https://utexas.zoom.us/j/96370762511
Contact:
John Lassiter
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Understanding and mitigating rockfall hazards in Yosemite National Park
Dr. Greg Stock (Yosemite National Park Geologist, National Park Service)
Abstract: Rockfalls are a defining feature of the cliffs of Yosemite National Park, with a rockfall occurring every five days on average. Yosemite is an ideal natural laboratory to study rockfall processes, but it comes at a cost: rockfalls pose considerable hazard to the park’s 4-5 million annual visitors. Combining traditional field mapping with remote sensing tools such as lidar, structure-from-motion photogrammetry and thermal imaging, this talk will summarize the findings from more than a decade of collaborative rockfall research, ranging from how rockfalls control long-term landscape evolution to the challenge of ensuring visitor safety in one of the world’s most popular parks.
DeFord Lecture Series
Since the 1940’s, the DeFord (Technical Sessions) lecture series, initially the official venue for disseminating EPS graduate student research, is a forum for lectures by distinguished visitors and members of our community. This is made possible through a series of endowments.
UTIG Seminar Series: Alejandro Cardona, UTIG
Start:September 3, 2021 at 10:30 am
End:
September 3, 2021 at 11:30 am
Location:
Zoom Meeting
Contact:
Constantino Panagopulos, costa@ig.utexas.edu, 512-574-7376
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Speaker: Alejandro Cardona, Postdoctoral Fellow, UTIG
Host: Peter Flemings
Title: Flow Phenomena in Geomaterials: Unraveling Processes and Behavior
Abstract: Energy positively correlates with quality of life, gross domestic product (GDP), and CO2 emissions. Current estimates project a 30% power demand increase by midcentury. The fields of geoscience and engineering play a vital role in addressing the energy challenge. In particular, flow phenomena prevail in a wide range of engineered and natural systems, from energy resource extraction to associated environmental implications and waste (e.g., CO2 and nuclear) and energy storage. Within this context, this presentation emphasizes developments in an array of geomaterials with common needs and technological difficulties. Permeability estimation methods in carbonate rocks highlight pore size as the underlying predictor; yet, all prediction models have an irreducible uncertainty. Fractures in the subsurface localize flow and deformations. Roughness, matedness, and strength all control hydromechanical responses at the fracture level. Multiphase flow is ubiquitous in subsurface energy-related applications, and emergent capillary processes cause intricate fluid distributions in fractured media. The characterization of hydrate-bearing sediments relies on pressure core technology to preserve the hydrate within stable conditions and produce representative properties. These measurements are extremely challenging, and benchmark studies help validate measurement systems. These studies build on a synergetic approach that combines meticulous experimental designs, analytical/numerical studies, and data-driven analysis to advance the understanding of phenomena in geomaterials.
WCE Seminar: Dr. Nawo Eguchi
Start:September 3, 2021 at 12:00 pm
End:
September 3, 2021 at 1:00 pm
Contact:
Cansu Demir and Ana Maria Restrepo
Dr. Nawo Eguchi, Kyushu University, Japan
Topic: Atmospheric sciences and satellite remote sensing
Faculty Meeting
Start:September 7, 2021 at 12:30 pm
End:
September 7, 2021 at 1:45 pm
LDE seminar: Thorsten Becker
Start:September 8, 2021 at 12:00 pm
End:
September 8, 2021 at 1:00 pm
Contact:
Ethan Conrad, econrad@utexas.edu
UT Paleontology Seminar
Start:September 9, 2021 at 11:00 am
End:
September 9, 2021 at 12:00 pm
Location:
JGB 4.102
Contact:
David Trevino Ledesma, ledesma-david@utexas.edu
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Dr. Nuria Melisa Morales Garcia, University of Bristol
What were Mesozoic mammals eating? Insights from jaw function
DeFord Lecture: Elizabeth Barnes
Start:September 9, 2021 at 4:00 pm
End:
September 9, 2021 at 5:00 pm
Location:
https://utexas.zoom.us/j/96370762511
Contact:
John Lassiter
View Event
Viewing Anthropogenic Change Through an AI Lens
Dr. Elizabeth Barnes, Colorado State University
Abstract:
DeFord Lecture Series
Since the 1940’s, the DeFord (Technical Sessions) lecture series, initially the official venue for disseminating EPS graduate student research, is a forum for lectures by distinguished visitors and members of our community. This is made possible through a series of endowments.
UTIG Seminar Series: Derrick Lampkin, George Mason University / NASA
Start:September 10, 2021 at 10:30 am
End:
September 10, 2021 at 11:30 am
Location:
Zoom Meeting
Contact:
Constantino Panagopulos, costa@ig.utexas.edu, 512-574-7376
View Event
Speaker: Derrick Lampkin, George Mason University / NASA
Host: Cyril Grima
Title: Greenland’s Shear Margins in Warming Climate: A Summary of Recent Work
Abstract: The Greenland Ice Sheet has experienced unprecedented changes in the last couple decades from regional warming resulting in enhanced surface melting. The increase in melting has activated a dynamic surface hydrologic system contributing to significant mass loss. Surface melt runoff contributes directly to Greenland’s mass loss as well as infiltration, which impacts ice dynamics and mass discharge. The ice sheet has a few critical bounding forces that can influence the rate of mass loss which includes the loss of ice shelves/tongues, enhanced calving at marine-terminating outlet glaciers, and an evolving basal hydrologic system due to infiltration of surface melt. In particular, the impact of surface melt water on ice dynamics via supraglacial lake drainage and runoff has been well documented. Little attention has been focused on direct injection of surface melt water into the shear margins of fast flowing, marine-terminating outlet glaciers, which are a critical control on mass flux. Our initial work was first to characterize water-filled crevasse ponds within the shear margins of Jakobshavn Isbræ and assess the volume of infiltrated melt water potentially reaching the bed. In the intervening years since this seminal work, we have utilized satellite observations and numerical models to decode the impact of hydrologic shear weakening due to melt water injection from these structures with implications for the evolution of Greenland’s other marine-terminating outlet glaciers under a warming climate.
We have constrained the theoretical impact of hydrologic shear weakening on extra-marginal ice flow using diagnostic models and provide projections for flow enhancement under future warming scenarios. For select seasons, we assessed relationships between extra-marginal, summer-time ice velocities and drainage of water-filled crevasses. We are starting to understand factors that drive how these crevasse systems fill and drain. We have characterized the spatial and temporal variability of melt extent over a 16 year period and assess the temporal changes in hydrologic state (filled vs. drained). Lastly, we explore implications for how not only water-filled shear ponds but other mechanisms such as rheological modification influence the dynamics of marine-terminating outlet glacier systems. Under future regional warming scenarios, we expect for mass discharge from Greenland’s outlet glaciers to be enhanced by perturbations to shear margins of these glacial systems.
Hot Science At Home "Water Justice"
Start:September 10, 2021 at 7:00 pm
End:
September 10, 2021 at 7:40 pm
Location:
Online (YouTube and Facebook)
Contact:
Didey Montoya, didey@austin.utexas.edu, 5124714211
View Event
There is a water crisis in the U.S. During the past decade, 63 million Americans were exposed to potentially unsafe water more than once. Dr. Kimberly Jones will discuss the disproportionate access to safe and reliable water in American communities and how researchers, lawmakers and communities can work together to solve this crisis.
Kimberly Jones is Professor and Associate Dean for Research and Graduate Education in the College of Engineering at Howard University. Her research interests include water and wastewater quality, global water treatment, and environmental justice. She has served on advisory committees to the U.S. National Academies and U.S. Environmental Protection Agency, the latter as chair of their Drinking Water Committee.
The event will be streamed live through our Facebook and YouTube channels and will include a Q&A session. Additional information is available at www.hotsciencecooltalks.org.
Habitability Seminar: Jung-Fu “Afu” Lin, UT Austin
Start:September 13, 2021 at 1:00 pm
End:
September 13, 2021 at 2:00 pm
Location:
Zoom Meeting
Contact:
David Goldstein, david@oden.utexas.edu
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A seminar from the Center for Planetary Systems Habitability
Title: Energy Sources Powering the Geodynamo
LDE Seminar: Riccardo Reitano
Start:September 15, 2021 at 12:00 pm
End:
September 15, 2021 at 1:00 pm
Contact:
Ethan Conrad
View Event
Tectonic Geomorphology
UT Paleontology Seminar: Undergraduate Research day
Start:September 16, 2021 at 11:00 am
End:
September 16, 2021 at 12:00 pm
Location:
JGB 4.102
Contact:
David Trevino Ledesma, ledesma-david@utexas.edu
View Event
DeFord Lecture: Akhilesh Gupta
Start:September 16, 2021 at 4:00 pm
End:
September 16, 2021 at 5:00 pm
Location:
https://utexas.zoom.us/j/96370762511
Contact:
John Lassiter
View Event
Climate Research in India: Progress and Vision for 2030
Dr. Akhilesh Gupta, India Dept. Science & Technology
Abstract: https://eps.jsg.utexas.edu/files/Abstract_Akhilesh_Deford_16Sept2021-2.pdf
DeFord Lecture Series
Since the 1940’s, the DeFord (Technical Sessions) lecture series, initially the official venue for disseminating EPS graduate student research, is a forum for lectures by distinguished visitors and members of our community. This is made possible through a series of endowments.
UTIG Seminar Series: Xie Hu, Peking University, China
Start:September 17, 2021 at 10:00 am
End:
September 17, 2021 at 11:00 am
Location:
Zoom Meeting
Contact:
Constantino Panagopulos, costa@ig.utexas.edu, 512-574-7376
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Speaker: Xie Hu, College of Urban and Environmental Sciences, Peking University
Host: Xiaohua Xu
Title: Ground deformation and alterations associated with geohazards and shallow processes
Abstract: An explicit quantification of geohazards and shallow processes is challenging due to the stochastic nature of the environment and the lack of observations. High-accuracy and high-resolution remote sensing and environmental datasets from the ground, air, and space empower us to identify natural or anthropogenic phenomena and their driving mechanisms and responsiveness to environmental variabilities. In particular, Synthetic Aperture Radar (SAR) allows us to monitor spatiotemporal ground deformations and alterations through interferometry (InSAR), pixel offset tracking, and amplitude and coherence statistics. This talk will illustrate how to obtain time-series SAR products at high accuracy, how to relate SAR-observed phenomena to subsurface physics, and how to quantify the kinematics and dynamics of geohazards and shallow processes. Cross-disciplinary research themes on landslides, groundwater systems, infrastructures, extreme precipitation events, and machine learning will be covered in this talk.
Faculty Meeting
Start:September 21, 2021 at 12:30 pm
End:
September 21, 2021 at 1:45 pm
UTIG Discussion Hour: Charlie Zheng, UT Jackson School of Geosciences
Start:September 21, 2021 at 2:00 pm
End:
September 21, 2021 at 3:00 pm
Location:
Zoom Meeting
Contact:
Naoma McCall, nmccall@utexas.edu
View Event
Speaker: Charlie Zheng, UT Jackson School of Geosciences
Title: Benthic oxygenation history of south Texas during the Austin Chalk Group deposition
Lithosphere and Dynamic Earth seminar: Eivind Straume
Start:September 22, 2021 at 12:00 pm
End:
September 22, 2021 at 1:00 am
DeFord Lecture | Justin Filiberto
Start:September 23, 2021 at 4:00 pm
End:
September 23, 2021 at 5:00 pm
Location:
https://utexas.zoom.us/j/96370762511
Contact:
John Lassiter
View Event
Present Day Volcanism on Venus: Evidence from Oxidation Rate Experiments
Dr. Justin Filiberto, Lunar and Planetary Science Institute
Abstract: The surface of Venus is covered with some of the largest volcanoes in our Solar System, including some fresh and unweathered lava flows, based on orbital spectroscopic and radar measurements. However, rocks on Venus are in contact with its hot (~470° C) and caustic (CO2 with S) atmosphere, which should alter these rocks and produce coatings of iron-oxides and sulfates on the rocks surface. These coatings should be observable from orbital measurements. Therefore, unweathered lava flows are thought to be geologically very young. Future missions VERITAS, DAVINCI, and EnVision will fly in the next decade and will image these volcanoes. However, to constrain the age of these unweathered lava flows from current and future data sets, the rate of alteration and how alteration minerals affect orbital measurements are needed. Here I will discuss what is known about igneous petrology of Venusian lava flows and specifically focus on recent alteration experiments that suggest unweathered lava flows are only a few years or up to a decade old.
DeFord Lecture Series
Since the 1940’s, the DeFord (Technical Sessions) lecture series, initially the official venue for disseminating EPS graduate student research, is a forum for lectures by distinguished visitors and members of our community. This is made possible through a series of endowments.
UTIG Seminar Series: Malcolm Ross, Eavor/Rice University
Start:September 24, 2021 at 10:30 am
End:
September 24, 2021 at 11:30 am
Location:
Zoom Meeting
Contact:
Constantino Panagopulos, costa@ig.utexas.edu, 512-574-7376
View Event
Speaker: Malcolm Ross, Black Swan Detector, Eavor & Adjunct Faculty, Rice University
Host: Brandon Shuck
Title: What’s Hot in the Search for Renewable Energy
Abstract: In the search for a reliable renewable energy source, the topic that stands out for the geoscientist is Geothermal Energy. Much of what we have learned from the search for hydrocarbons can be applied to the search for geothermal. However, many of the learnings of the oil industry have not infiltrated the geothermal community, hindering the application of state-of-the-art techniques and technologies to this new field. Could the application of this technology improve geothermal energy’s participation rate to something higher than the current <1% of the energy mix? The key lies in the question of “where”? Current technologies and techniques can be applied in <8% of the landmass, making it a niche opportunity at best. What needs to change to break out of that niche to “Geothermal Anywhere”? The answer: how energy is extracted from the subsurface. Traditional extraction techniques mirror the hydrocarbon extraction world, where fluid/gas flow through pores is required; traditional geothermal techniques are not applicable without porosity and permeability (natural or artificial).
To expand and thrive, the search for geothermal energy needs creative solutions that greatly expand the scope of application. We will review the challenges of traditional geothermal approaches and explore some of the cutting-edge exploration, drilling, and production technologies now being pursued to achieve the goal of “Geothermal Anywhere.” Since geothermal drilling and casing costs typically account for >50% of the CAPEX of a geothermal project, lowering the cost of drilling and increasing the potential depth/temperature would have dramatic results. One of these techniques, hypersonic drilling, could be used as a seismic signal for reflection, refraction, and tomographic studies.
One of the principal challenges to any geothermal energy project is the fear of induced seismicity. At least three geothermal projects have been shut down by public objections caused by structural damages from induced seismicity. There are many sources of geothermally-induced seismicity – Enhanced/Engineered Geothermal Systems use fracking to improve permeability, although the technology elicits a negative connotation to the public in many places. Traditional systems move a great deal of fluid through naturally porous rocks, inducing stress changes that can induce earthquakes. However, in closed-loop systems where no fluids move through rock, the only product extracted is heat. Recent studies suggest that heat extraction can cause thermal destressing fault systems, implying that heat extraction-only systems may not induce seismicity and may even reduce background seismicity.
Habitability Seminar: Zilong Wu, University of Texas at Austin
Start:September 27, 2021 at 1:00 pm
End:
September 27, 2021 at 2:00 pm
Location:
Zoom Meeting
Contact:
David Goldstein, david@oden.utexas.edu
View Event
A seminar from the Center for Planetary Systems Habitability
Title: Ultrasensitive Detection of Trace Chiral Prebiotic Molecules
Abstract: Chiral molecules are the building blocks of life. Study of enantiomeric excess of amino acids in interstellar ice enables scientific advancement and a better understanding of life origin on Earth. Resolution of interstellar chiral prebiotic compounds also plays a significant role in searching for life in space. Miniature systems with reduced mass, volume, power and complexity for resolving multiple (>20) trace chiral prebiotic molecules on icy bodies are desired for future planetary missions. We aim to develop miniaturized and ultra-sensitive opto-thermo-fluidic platforms with capabilities to enable chiral detection of amino acids at sub parts per billion (ppb) level and to resolve multiple pairs of trace amino acids. The platforms can be integrated with multi-level filters and heating elements for sample handling and analysis in icy environments to achieve ultracompact opto-thermo-fluidic systems with digital control and deep-learning-enabled analysis. In this talk, I will introduce our recent works in developing and improving the opto-thermo-fluidic sensing platforms, as well as establishing a deep convolutional mixture density network, which will benefit the further improvement of the platforms and the future rapid analysis of sensing signals.
Alumni and Friends Networking Reception at AAPG/SEG Image
Start:September 28, 2021 at 5:00 pm
End:
September 28, 2021 at 7:00 pm
Location:
Wright Room at the Appaloosa Grill, 535 16th St., Second Floor
Contact:
Courtney Vletas, cvletas@jsg.utexas.edu, 512-621-6120
Lithosphere and Dynamic Earth seminar: Sarah Jaye-Oliva (UBC)
Start:September 29, 2021 at 12:00 pm
End:
September 29, 2021 at 1:00 pm
DeFord Lecture | Jessica Barnes
Start:September 30, 2021 at 4:00 pm
End:
September 30, 2021 at 5:00 pm
Location:
https://utexas.zoom.us/j/96370762511
Contact:
John Lassiter
View Event
Next-generation lunar sample science
Dr. Jessica Barnes, University of Arizona
Abstract:
DeFord Lecture Series
Since the 1940’s, the DeFord (Technical Sessions) lecture series, initially the official venue for disseminating EPS graduate student research, is a forum for lectures by distinguished visitors and members of our community. This is made possible through a series of endowments.
Planetary Habitability Seminar SeriesApril, 22 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: Nicholas Montiel - PhD Talk (UTIG)April, 23 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |
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 |