← January 2014 March 2014 →
Mon Tue Wed Thu Fri Sat Sun
     
1
2
3
12:00 pm - Soft Rock Seminar - Owen Anfinson

Soft Rock Seminar - Owen Anfinson

  Start: February 3, 2014 at 12:00 pm     End: February 3, 2014 at 1:00 pm
 Location:JGB 3.222
 Contact:Anastasia Piliouras, piliouras@utexas.edu

4
4:00 pm - Tech Sessions: Drew Eddy, JSG

Tech Sessions: Drew Eddy, JSG

  Start: February 4, 2014 at 4:00 pm     End: February 4, 2014 at 5:00 pm
 Location:JGB 2.324 Boyd Auditorium
Talk Title: Mesozoic rifting along the eastern seaboard of North America: insights from the seismic velocity structure of the Newfoundland margin and the northern Gulf of Mexico

4:00 pm - Resume Workshop

Resume Workshop

  Start: February 4, 2014 at 4:00 pm     End: February 4, 2014 at 5:00 pm
 Location:JGB 3.222
 Contact:Chelsea Ochoa, chelsea.ochoa@jsg.utexas.edu, 512-232-0893
Spring Cleaning: Resume Edition. Has it been awhile since you looked over your resume? No problem! Bring the latest version of your resume (if you have one), and leave this workshop with a resume that's ready for the career fair.

5
12:00 pm - iPGST Seminar: Dr. Marty Grove

iPGST Seminar: Dr. Marty Grove

  Start: February 5, 2014 at 12:00 pm     End: February 5, 2014 at 1:00 pm
 Location:JGB 3.222
 Contact:Michael Prior, mprior@utexas.edu

4:00 pm - Faculty Panel for PhD Students

Faculty Panel for PhD Students

  Start: February 5, 2014 at 4:00 pm     End: February 5, 2014 at 5:00 pm
 Location:JGB 4.102
 Contact:Maurine Riess, mriess@jsg.utexas.edu, 512-232-7673
Learn how to start your academic career at this panel discussion.

6
4:00 pm - Tech Sessions: Mark Norrell, AMNH

Tech Sessions: Mark Norrell, AMNH

  Start: February 6, 2014 at 4:00 pm     End: February 6, 2014 at 5:00 pm
 Location:JGB 2.324 Boyd Auditorium
 Contact:Julia Clarke, julia_clarke@jsg.utexas.edu
Title Talk: Perspectives on the Evolution of Theropod Dinosaurs

Mark Norell has excavated in the Gobi desert for the last 25 years, heads an international research group devoted to a better understanding of theropod systematics and evolution.

7
10:30 am - *UTIG Seminar Series: Timothy Bartholomaus, UTIG

*UTIG Seminar Series: Timothy Bartholomaus, UTIG

  Start: February 7, 2014 at 10:30 am     End: February 7, 2014 at 11:30 am
 Location:PRC, 10100 Burnet Road, Bldg 196, Rm 1.603, Austin, Tx 78758
 Contact:Joe MacGregor, joemac@ig.utexas.edu, (512) 471-0411
 URL:Event Link
(*Canceled due to weather*)

"Seismicity, Seawater and Seasonality: New Insights into Iceberg Calving from Yahtse Glacier, Alaska"

Abstract:

Glaciers that end in the ocean lose mass at their termini through iceberg calving and submarine ocean melting, as well as by melting at their top surfaces that is common to all glaciers. Iceberg calving and submarine melting are major, rapidly changing components of the mass loss of many glaciers worldwide. Yet, the mechanisms and factors that control calving and submarine melt are poorly understood. In large part, this uncertainty stems from the challenges of making high temporal resolution measurements and working in these extremely dynamic environments. In this seminar, I draw on methods from seismology and oceanography to identify the magnitudes and variability of submarine melt and iceberg calving at Yahtse Glacier, a tidewater glacier in southern Alaska. I will show how cavitation of icebergs beneath the sea surface can generate "icequakes" that are recorded by seismometers 100s of km distant. Time series of calving-generated icequakes show that calving varies seasonally, as well as in response to ocean tides. I find that the submarine portion of the glacier terminus can melt at over 10 m/d during much of the year. These results demonstrate how essential the ocean can be to the dynamics of tidewater glaciers.

8
9
10
12:00 pm - Soft Rock Seminar - Harish Sangireddy, CRWR

Soft Rock Seminar - Harish Sangireddy, CRWR

  Start: February 10, 2014 at 12:00 pm     End: February 10, 2014 at 1:00 pm
 Location:JGB 3.222
 Contact:Anastasia Piliouras, piliouras@utexas.edu

12:15 pm - Career Fair Prep Workshop

Career Fair Prep Workshop

  Start: February 10, 2014 at 12:15 pm     End: February 10, 2014 at 1:00 pm
 Location:JGB 4.102
 Contact:Chelsea Ochoa, chelsea.ochoa@jsg.utexas.edu, 512-232-0893
Learn what to do before, during and after the fair to make a positive impression!

11
4:00 pm - Tech Sessions: Charles Brothers, JSG

Tech Sessions: Charles Brothers, JSG

  Start: February 11, 2014 at 4:00 pm     End: February 11, 2014 at 5:00 am
 Location:JGB 2.324 Boyd Auditorium

5:15 pm - TCEQ Information Session

TCEQ Information Session

  Start: February 11, 2014 at 5:15 pm     End: February 11, 2014 at 6:15 pm
 Location:JGB 2.218
 Contact:Chelsea Ochoa, chelsea.ochoa@jsg.utexas.edu, 512-232-0893
TCEQ will lead an info session about their summer internship program.


12
12:00 pm - iPGST Seminar: Dr. Celia Dalou

iPGST Seminar: Dr. Celia Dalou

  Start: February 12, 2014 at 12:00 pm     End: February 12, 2014 at 1:00 pm
 Location:JGB 3.222
 Contact:Michael Prior, mprior@utexas.edu

13
14
10:30 am - UTIG Seminar Series: Jin-Oh Park, University of Tokyo

UTIG Seminar Series: Jin-Oh Park, University of Tokyo

  Start: February 14, 2014 at 10:30 am     End: February 14, 2014 at 11:30 am
 Location:PRC, 10100 Burnet Road, Bldg 196, Rm 1.603, Austin, TX 78758
 Contact:Nathan Bangs, nathan@ig.utexas.edu, 512-471-0424
 URL:Event Link
"Along-Strike Variations in the Nankai Shallow Décollement Properties and Their Implications for Tsunami Earthquake Generation"

Abstract:

Rupture of slow tsunami earthquakes at subduction zones propagates along a shallow plate-boundary fault (i.e., décollement) all the way or nearly all the way to the trench, exciting large tsunamis. Our seismic reflection profiles reveal the shallow décollements have variable reflection polarity and reflection coefficient in the Nankai subduction zone, allowing us to divide the subduction zone into ‘wet’ (fluid-rich) and ‘dry’ (fluid-poor) décollement regions. The wet décollement regions are characterized by (1) reverse-polarity reflections with negative reflection coefficients, (2) weak shear strength along the fault, and (3) close proximity to the source area of the 1605 Keicho tsunami earthquake, and therefore, may play a role as conditionally-stable patches with elevated fluid pressures. In contrast, the dry décollement regions are characterized by (1) normal-polarity reflections and positive reflection coefficients, (2) strong shear strength along the fault, (3) interseismic fault locking, (4) frictional heating, and (5) very-low-frequency earthquakes rich in high-frequency components, and therefore, could be seismic patches with no unusual fluid pressures. We propose that when megathrust earthquakes nucleate at shallow depth, failure of the small seismic patches, acting as a nucleation portion, may accelerate adjacent large, conditionally stable patches, generating large tsunamis. As a result, along-strike contrast of fault properties can involve large tsunami earthquakes along the Nankai shallow megathrust fault.

15
16
17
11:30 am - Lunch & Learn

Lunch & Learn

  Start: February 17, 2014 at 11:30 am     End: February 17, 2014 at 12:30 pm
 Location:JGB 4.102
 Contact:Chelsea Ochoa, chelsea.ochoa@jsg.utexas.edu, 512-232-0893
Core Laboratories will be holding a lunch & learn before the career fair. RSVP to career center.

12:00 pm - Soft Rock Seminar - John Holbrook, Texas Christian University

Soft Rock Seminar - John Holbrook, Texas Christian University

  Start: February 17, 2014 at 12:00 pm     End: February 17, 2014 at 1:00 pm
 Location:JGB 3.222
 Contact:Anastasia Piliouras, piliouras@utexas.edu

1:00 pm - Spring 2014 Geosciences, Energy & Environment Career Fair

Spring 2014 Geosciences, Energy & Environment Career Fair

  Start: February 17, 2014 at 1:00 pm     End: February 17, 2014 at 4:00 pm
 Location:SAC Ballroom, SAC 2.410
 Contact:Maurine Riess, mriess@jsg.utexas.edu, 512-232-7673

18
4:00 pm - Tech Sessions: Siwei Li, JSG

Tech Sessions: Siwei Li, JSG

  Start: February 18, 2014 at 4:00 pm     End: February 18, 2014 at 5:00 pm
 Location:JGB 2.324 Boyd Auditorium
Talk Title: Seismic imaging and velocity model building with the linearized eikonal equation and upwind finite-differences

19
12:00 pm - iPGST Seminar: Dr. Nick Hayman

iPGST Seminar: Dr. Nick Hayman

  Start: February 19, 2014 at 12:00 pm     End: February 19, 2014 at 1:00 pm
 Location:JGB 3.222
 Contact:Michael Prior, mprior@utexas.edu

20
4:00 pm - Tech Sessions: Angela Hessler, Chevron

Tech Sessions: Angela Hessler, Chevron

  Start: February 20, 2014 at 4:00 pm     End: February 20, 2014 at 5:00 pm
 Location:JGB 2.324 Boyd Auditorium
Title Talk: Earth's Earliest Climate: Interplay between Life, Atmosphere, and Climate in the Precambrian

Abstract: Our understanding of early Precambrian surface conditions is constrained by rare outcrops in Greenland, South Africa, and Australia and has been further explored by models of ocean and atmosphere chemistry. An overview of current knowledge will be presented, with an in-depth look at sedimentary evidence from the 3.2 - 3.5 Ga Barberton Greenstone Belt, as well as a discussion of how the evolution of life impacted -- and was impacted by -- Precambrian climate change.

21
2:00 pm - UTIG Seminar Series: Christie Rowe, McGill University

UTIG Seminar Series: Christie Rowe, McGill University

  Start: February 21, 2014 at 2:00 pm     End: February 21, 2014 at 3:00 pm
 Location:PRC, 10100 Burnet Road, Bldg 196, Rm 1.603, Austin, TX 78758
 Contact:Laura Wallace, lwallace@ig.utexas.edu, 512-471-0324
 URL:Event Link
"JFAST: Results from the Rapid Response Drilling Expedition to the Japan Trench following the M9.0 Tohoku-oki Earthquake"

Abstract:

The March 11, 2011 Tohoku-oki earthquake displayed unusually large slip to the trench, causing a lateral displacement of about 50 m at the trench. This extreme seafloor displacement generated a devastating tsunami. This is the first time in the history of scientific ocean drilling that it has been possible to drill into the highest slip area of a plate boundary fault which has recently slipped in a great earthquake. International Ocean Drilling Program Expedition 343 aboard Japanese Drilling Vessel Chikyu drilled a site ~200 km east of Sendai, just landward of the trench axis where the water depth was ~6.9 km. We successfully drilled to the plate boundary fault in three holes, intersecting it at ~820 m below the sea floor. I will present the onboard observations (Logging-While-Drilling data and core observation) which show the contrast across the plate boundary from the intensely faulted, tightly folded wedge sediments to the sub-horizontal, older sediment of the down-going plate. The plate boundary appears localized on an imbricate sliver of the basal smectite-rich pelagic clay from the incoming section, while the mechanically stronger, more siliceous overlying strata have been off-scraped and deformed in the wedge. Microfossil ages, organic stratigraphy and trace element stratigraphy require that the frequency of faults in both the accretionary wedge and the footwall is on a similar order to the sampling frequency (one every few meters). Transmission electron microscopy of the discrete slip surfaces collected from the vicinity of the plate boundary show sharp amorphous layer which are suspected to be pseudotachylyte.



22
23
24
12:00 pm - Soft Rock Seminar - Kyle Strom, University of Houston

Soft Rock Seminar - Kyle Strom, University of Houston

  Start: February 24, 2014 at 12:00 pm     End: February 24, 2014 at 1:00 pm
 Location:JGB 3.222
 Contact:Anastasia Piliouras, piliouras@utexas.edu

25
4:00 pm - Tech Sessions: Lei Yin, JSG

Tech Sessions: Lei Yin, JSG

  Start: February 25, 2014 at 4:00 pm     End: February 25, 2014 at 5:00 pm
 Location:JGB 2.324 Boyd Auditorium
Talk Title: Understanding Rainfall Variability and Extremes over the Amazon to Improve Their Future Projection

26
12:00 pm - iPGST Seminar: Dr. Dave Young

iPGST Seminar: Dr. Dave Young

  Start: February 26, 2014 at 12:00 pm     End: February 26, 2014 at 1:00 pm
 Location:JGB 3.222
 Contact:Michael Prior, mprior@utexas.edu

27
12:00 pm - Faculty Panel on Academic Careers

Faculty Panel on Academic Careers

  Start: February 27, 2014 at 12:00 pm     End: February 27, 2014 at 1:00 pm
 Location:JGB 2.112A
 Contact:Maurine Riess, mriess@jsg.utexas.edu, 512-232-7673
Academic Career Start Faculty Panel Discussion

Panelists: Drs. Jaime Barnes, Dan Breecker, Kevan Moffett

4:00 pm - Tech Sessions: Nathan Bangs, UTIG

Tech Sessions: Nathan Bangs, UTIG

  Start: February 27, 2014 at 4:00 pm     End: February 27, 2014 at 5:00 pm
 Location:JGB 2.324 Boyd Auditorium
Talk Title: A 3D look at the structure, hydrogeology, and the seismogenic zone along the Costa Rica margin


5:15 pm - Schlumberger Information Session

Schlumberger Information Session

  Start: February 27, 2014 at 5:15 pm     End: February 27, 2014 at 6:15 pm
 Location:JGB 3.222
 Contact:Chelsea Ochoa, chelsea.ochoa@jsg.utexas.edu, 512-232-0893
Schlumberger Info Session
5:15 PM
JGB 3.222

28
10:30 am - UTIG Seminar Series: Nathan Bangs, UTIG

UTIG Seminar Series: Nathan Bangs, UTIG

  Start: February 28, 2014 at 10:30 am     End: February 28, 2014 at 11:30 am
 Location:PRC, 10100 Burnet Road, Bldg. 196, Rm 1.603, Austin, TX 78758
 Contact:Nick Hayman, hayman@ig.utexas.edu, 512-471-7721
 URL:Event Link
"A 3D Look at the Structure, Hydrogeology, and the Seismogenic Zone along the Costa Rica Margin"

Abstract:

In 2011, an international team of scientists acquired a 3D seismic reflection data volume from the Costa Rica margin using the R/V Marcus Langseth. We acquired these data just northwest of the Osa Peninsula along a segment of the margin that has repeatedly had moderate (Mw 6.4 – 6.9) plate-boundary thrust earthquakes, and has been the target of two IODP drilling legs. One of the main goals of this project was to image the plate-boundary thrust fault system to determine how physical properties along the plate interface change downdip from the trench at the toe of the slope, to the source regions of the earthquakes at depths of ~ 6-8 km beneath the margin shelf. In sediment-rich subduction zones, this downdip transition is thought to be largely controlled by the loss of fluids and declining fluid pressures. However, the Costa Rica margin is a sediment-poor subduction zone with a substantially different fluid supply and “plumbing system” than sediment-rich subduction zones. The role of fluids in sediment-poor subduction zones is poorly known. In this talk I will present an overview of the Costa Rica margin tectonics inferred from the 3D deformational structures, infer the plumbing system within this sediment-poor subduction system, and show how the plumbing system influences slip on the subduction thrust.