Events
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JSG | BEG | UTIG | EPS |
DeFord Lecture: Andy Gleadow
Start:September 5, 2019 at 3:45 pm
End:
September 5, 2019 at 5:00 pm
Location:
JGB 2.324
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UTIG Seminar Series: Chris Lowery, UTIG
Start:September 6, 2019 at 10:30 am
End:
September 6, 2019 at 12:00 pm
Location:
PRC ROC Room 1.603
Contact:
Constantino Panagopulos, costa@ig.utexas.edu, 512-574-7376
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Speaker: Chris Lowery, Research Associate, UTIG
Host: Gail Christeson
Title: The Chicxulub Impact and the Resilience of Life
Abstract: Look, we all know there have been a lot of Chicxulub talks around here over the past few years. I’m going to focus on putting the new results from that drilling expedition back into the big picture of the Cretaceous-Paleogene (K-Pg) mass extinction and the evolution of life more generally. The worst environmental effects of the impact were over within a few years, and the extinction of 76% of species in the fossil record occurred within that short window of time. It is surprising, then, that the recovery of the marine biological pump took 1.8 million years, and the recovery of biodiversity in a number of marine groups took over 10 million years. This gets at a fundamental question of macroevolutionary research: is evolution primarily driven by external, abiotic factors or internal, ecological and biological factors? This is not an abstract theoretical problem but an extremely relevant and pressing one, given alarming modern declines in global biodiversity. How long will it take for biodiversity to recover once negative anthropogenic pressures are removed? I will summarize how the recent work on marine microfossils by myself and colleagues has contributed to our overall understanding to the short term and long term recoveries of life following the Chicxulub impact, and what major unknowns still need to be investigated.
DeFord Lecture Series: Patrick Heimbach
Start:September 10, 2019 at 3:45 pm
End:
September 10, 2019 at 5:00 pm
Location:
JGB 2.324
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DeFord Lecture: Rowan Martindale
Start:September 12, 2019 at 3:45 pm
End:
September 12, 2019 at 5:00 pm
Location:
JGB 2.324
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UTIG Seminar Series: Yi Fang, UTIG
Start:September 13, 2019 at 10:30 am
End:
September 13, 2019 at 12:00 pm
Location:
PRC ROC Room 1.603
Contact:
Constantino Panagopulos, costa@ig.utexas.edu, 512-574-7376
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Speaker: Yi Fang, Postdoctoral Fellow, UTIG
Host: Peter Flemings
Title: Permeability of a methane hydrate reservoir in the Gulf of Mexico
Abstract: Methane hydrates, ice-like solids composed of methane and water, are stable in continental margin sediments. They are a large potential energy resource and play an important component of the carbon cycle and may impact climate change. To understand their role in these processes, we must understand how they form and how they might be produced. Many quantitative models have been developed to describe these processes. All of them critically depend on understanding of the flow properties of hydrate-bearing material, which are virtually unknown. I have spent two years studying these properties in the laboratory. We recovered pressurized cores from a sandy silt with ~90% hydrate saturation in deepwater Gulf of Mexico (GOM). We measured effective permeability in these samples and found permeabilities around ½ millidarcy (mD) at in-situ stress. We also reconstituted sandy silt sediments to predict its in-situ intrinsic permeability (11.8 mD) and to explore its relationship to porosity. Ultimately, our study will inform numerical models with permeability properties at scales of individual lithofacies.
Alumni Reception during SEG in San Antonio
Start:September 17, 2019 at 6:00 pm
End:
September 17, 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
DeFord Lecture: Luc Lavier
Start:September 19, 2019 at 3:45 pm
End:
September 19, 2019 at 5:00 pm
Location:
JGB 2.324
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UTIG Seminar Series: Donald Slater, Scripps
Start:September 20, 2019 at 10:30 am
End:
September 20, 2019 at 12:00 pm
Location:
PRC ROC Room 1.603
Contact:
Constantino Panagopulos, costa@ig.utexas.edu, 512-574-7376
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Speaker: Donald Slater, Postdoctoral Scholar, Scripps Institution of Oceanography
Host: Ginny Catania
Title: Effect of ocean variability on the Greenland Ice Sheet in the 20th and 21st centuries
Abstract: In recent decades, more than 95% of marine-terminating glaciers around the Greenland ice sheet have retreated, driving dynamic thinning of the ice sheet periphery and contributing significantly to sea level. These changes have been attributed largely to a warming of the ocean surrounding Greenland, and the subsequent increase in submarine melting of tidewater glacier calving fronts. Understanding the interaction of glaciers with the ocean is therefore thought to be a key process modulating Greenland ice sheet stability, yet is currently poorly understood.
This seminar will cover three related studies on Greenland ice sheet-ocean interactions. The first pairs unique ocean observations from within meters of a tidewater glacier with high-resolution ocean modeling to show that drainage of freshwater from beneath the glacier drives a fjord-wide circulation that doubles the total submarine melt rate. The second study addresses submarine melt variability at all of Greenland’s tidewater glaciers over the past century, suggesting that the atmosphere drives as much variability in submarine melting as the ocean. Lastly I will describe how ocean forcing of the Greenland ice sheet is represented in ISMIP6, our leading community effort to produce ice sheet sea level projections for the next IPCC assessment report. Together these studies go from detailed process understanding to Greenland ice sheet-wide sea level projections, along the way highlighting key unknowns and sources of uncertainty.
Hot Science - Cool Talk "Detecting Cancer by Touch"
Start:September 20, 2019 at 7:00 pm
End:
September 20, 2019 at 8:15 pm
Location:
Student Activity Center (SAC)
Contact:
Didey Montoya, didey@austin.utexas.edu, 5124714211
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Cancer surgeries are complex procedures that require high levels of precision. New technologies that allow rapid and accurate detection of cancer during surgery could significantly improve treatment of cancer patients. Dr. Eberlin will share her team’s breakthrough in developing the MasSpec Pen technology for rapid and accurate cancer detection during surgery.
Alumni Reception during GSA in Phoenix
Start:September 23, 2019 at 6:00 pm
End:
September 23, 2019 at 8:00 pm
Location:
The Counter, 50 N Central Ave, Phoenix, AZ 85004
Contact:
Kristen Tucek, ktucek@jsg.utexas.edu, 512-471-2223
DeFord Lecture: Michael Walter
Start:September 26, 2019 at 3:45 pm
End:
September 26, 2019 at 5:00 pm
Location:
JGB 2.324
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UTIG Seminar Series: Karianne Bergen, Harvard University
Start:September 27, 2019 at 10:30 am
End:
September 27, 2019 at 12:00 pm
Location:
PRC ROC Room 1.603
Contact:
Constantino Panagopulos, costa@ig.utexas.edu, 512-574-7376
View Event
Speaker: Karianne Bergen, Data Science Initiative Postdoctoral Fellow, Harvard University
Host: Thorsten Becker
Title: Earthquake Monitoring in the age of “Big Data”: Challenges and Opportunities
Abstract: Earthquake detection, the extraction of weak earthquake signals from continuous waveform data recorded by sensors in a seismic network, is a fundamental and challenging task in seismology. In this talk, I will describe the data science challenges associated with earthquake detection in massive seismic data sets. I will discuss how new algorithmic advances in machine learning and data mining are helping to push the state-of-the-art in earthquake monitoring.
As a case study, I will present Fingerprint and Similarity Thresholding (FAST), a novel method for large-scale earthquake detection inspired by audio recognition technology (Yoon et al, 2015). FAST uses locality-sensitive hashing, a technique for efficiently identifying similar items in large data sets, to detect similar waveforms (candidate earthquakes) in continuous seismic data. By posing earthquake detection as a data mining problem, FAST can discover new earthquake sources without training data, which is often unavailable for seismic data sets. FAST has recently been extended to long-duration, multi-sensor seismic data sets (Bergen and Beroza, 2018; Rong et al., 2018) – introducing a capability for large-scale unsupervised detection that was not previously available for seismic data analysis.
The latest generation of earthquake detection methods, including FAST and other new approaches based on deep neural networks, reflect a broader trend toward data-driven methods in the solid Earth geosciences (Bergen et al., 2019). I will conclude the talk with a brief discussion of opportunities for collaboration between the geoscience and data science communities that can advance the state-of-the art in both fields.
Bio: Dr. Karianne Bergen is a Data Science Initiative Postdoctoral Fellow at Harvard University. Karianne received her Ph.D. and Masters in Computational and Mathematical Engineering from Stanford University, where she was advised by Professor Greg Beroza in the Department of Geophysics. Her thesis research focused on developing new algorithms to automatically identify weak earthquake signals in large seismic data sets. While at Stanford, Karianne developed and co-taught a new data science short course on the fundamentals of machine learning for non-specialists. Prior to her time at Stanford, Karianne worked as a staff data scientist in the Biological and Chemical Defense Systems Group at MIT-Lincoln Laboratory. Karianne holds a Bachelor of Science in Applied Mathematics from Brown University.
UTIG Seminar Series: Melisa Diaz, The Ohio State UniversityMarch, 29 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Melisa Diaz, Assistant Professor, The Ohio State University Host: Benjamin Keisling Title: Biogeochemistry of a Greenland Ice-Marginal Lake Abstract: Due to polar amplification, nearly every glacier in Greenland has thinned and/or retreated in recent decades. The meltwater generated from these glaciers can take several paths, ultimately discharging into coastal waters or stored in closed-basin lakes. Ice-marginal lakes are a common but poorly understood feature in many glaciated regions, including Greenland. The lakes receive freshwater input from a combination of subglacial, supraglacial, terrestrial and meteoric sources, and a subset periodically drain, resulting in the rapid discharge of large volumes of water downstream (glacial lake outburst floods – GLOFs). In the case of drainages under adjacent marine terminating glaciers, GLOFs can deposit large amounts of sediment, nutrients, and freshwater directly into coastal waters and fjords. Lake Tininnilik, a large (~40 km2) ice-marginal lake that forms along Saqqarliup Glacier in west Greenland, drains ~2 km3 on quasi-cyclic decadal timescales into Saqqarleq Fjord to the north. For this talk, I will discuss the first comprehensive biogeochemical analysis of Lake Tininnilik and its potential influence on coastal primary productivity, including its major and minor nutrient stoichiometry and microbial composition. As the climate continues to warm, GLOFs are expected to become more frequent in Greenland. Therefore, it is imperative that we understand how these events can impact coastal community resilience. |
UTIG Discussion Hour: Kaitlin Schaible (UTIG)April, 02 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |
UTIG Seminar Series: Chuanming Liu, UT AustinApril, 05 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Chuanming Liu, Distinguished Postdoctoral Fellow, UT Jackson School of Geosciences, Postdoctoral Fellow, University of Texas Institute for Geophysics Host: Thorsten Becker |
UTIG Discussion Hour: Soraya Alfred (UTIG)April, 09 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |
UTIG Seminar Series: Tanner Miller, UTIGApril, 12 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Tanner Miller, Postdoctoral Fellow, University of Texas Institute for Geophysics Host: Peter Flemings |
UTIG Seminar Series: Crispin Little, University of LeedsApril, 12 2024Time: 2:00 PM - 3:00 PMLocation: PRC 196/ROC 1.603 Join us for a special seminar with Professor Cris Little. Speaker: Crispin Little, Professor, School of Earth and Environment, University of Leeds Host: Rowan Martindale Title: Biotic response to environmental perturbations in the Pliensbachian and Toarcian stages of the Lower Jurassic Abstract: The Lower Jurassic period was characterized by instability in global climate, with alternating greenhouse and icehouse states, and episodes of widespread oxygen depletion in the shallow marine environment. These episodes of oxygen depletion are marked by frequent intervals of increased organic carbon preservation in shallow marine sediments. The Pliensbachian stage of the Lower Jurassic was characterised by significantly cooler global temperatures than the preceding Sinemurian, and the following Toarcian stages, and ended with an extinction event (notably for ammonites) at the Pliensbachian-Toarcian boundary (Pl-To) ca. 184.2 Ma. About one Myr later the Toarcian Oceanic Anoxic Event (T-OAE) is characterized Corg rich black shale successions, particularly well developed in sedimentary basins in NW Europe, which display a negative ?13Corg excursion of -5 to -6‰, lasting 0.5 to 1.5 Myr. This excursion has been tied to a disruption of the global exogenic carbon cycle, but the ultimate source of the injected 12C is a matter of debate, with suggestions including methane hydrates, thermogenic methane produced by volcanism in the Karoo-Ferrar Large Igneous Province (LIP), wetlands, and permafrost destabilisation. The onset of the T-OAE in many (but importantly not all) sections is intimately linked to an extinction event that especially impacted the marine benthic macrofauna, but left the nekton largely unaffected. The recovery from this event is not well studied, but in one site, the Cleveland Basin of North Yorkshire, UK, although species richness recovered markedly as soon as environmental conditions ameliorated, other metrics of functional diversity and community structure did not attain pre-extinction levels until much later, some five million years after the extinction event. The talk will be of interest to those working on macroevolution, paleontology, and the effect of large scale climate change on marine ecosystems. |
UTIG Discussion Hour: Medha Prakash (UTIG)April, 16 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |
UTIG Seminar Series: Emma \"Mickey\" MacKie, University of FloridaApril, 19 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Emma \"Mickey\" MacKie, Assistant Professor, Geological Sciences, University of Florida Host: John Goff |
Master\'s Thesis PresentationsApril, 19 2024Time: 2:00 PM - 5:00 PMLocation: JGB The Master of Science (MS) degree at the Jackson School of Geosciences is considered to be the professional degree for a career in the Geosciences. This degree is the foundation for students pursuing employment in the petroleum industry, environmental and hydrogeological fields, state and federal government agencies, and other related geoscience fields. Some students also use the MS degree as preparation for pursuing a Ph.D. The Energy & Earth Resources Interdisciplinary program provides the opportunity for students to prepare themselves in management, finance, economics, law and policy leading to analytical and leadership positions in resource-related fields. The private sector and government organizations face a growing need for professionals that can plan, evaluate, and manage complex resource projects, commonly international in scope, which often include partners with a variety of professional backgrounds. As requirements for these degrees, students must present a professional talk on Master\'s Thesis Presentations. |
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 |
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 |