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Lucy, the most famous fossil of a human ancestor, probably died after falling from a tree, according to a study appearing in Nature led by researchers at The University of Texas at Austin. Lucy, a 3.18-million-year-old specimen of Australopithecus afarensis —...

SEP
28

iPGST: Edward Marshall, UT Austin
12:00 PM

iPGST: Edward Marshall, UT Austin

  Start: September 28, 2016 at 12:00 pm     End: September 28, 2016 at 1:00 pm
 Location:JGB 3.222
 Contact:Emily H.G. Cooperdock, emilyhgoldstein@utexas.edu
Informal Petrology, Geochemistry, Structure and Tectonics Seminar

SEP
30

UTIG Seminar Series: Steve Phillips, Postdoc, UTIG
10:30 AM

iPGST: Edward Marshall, UT Austin

  Start: September 28, 2016 at 12:00 pm     End: September 28, 2016 at 1:00 pm
 Location:JGB 3.222
 Contact:Emily H.G. Cooperdock, emilyhgoldstein@utexas.edu
Informal Petrology, Geochemistry, Structure and Tectonics Seminar

UTIG Seminar Series: Steve Phillips, Postdoc, UTIG

  Start: September 30, 2016 at 10:30 am     End: September 30, 2016 at 11:30 am
 Location:PRC ROC Room 1.603
 Contact:Peter Flemings, pflemings@jsg.utexas.edu, 512-475-9520
The influence of the Indian monsoon on productivity and sedimentation in the northern Bay of Bengal over the last glacial-interglacial cycle

The Indian monsoon drives seasonal changes in precipitation and runoff across India as well as circulation and productivity in the northern Indian Ocean. I will present a multi-proxy analysis of a sediment record (since 110 ka) from the offshore Mahanadi Basin recovered during the Indian National Gas Hydrate Program Expedition 01 (Site NGHP-01-19B) within the core convective region of the Indian monsoon. These results highlight the offshore Mahanadi Basin as a supply-dominated margin where terrigenous sedimentation is strongly influenced by monsoon intensity, and that biological productivity is likely limited by variation in monsoon-driven ocean stratification on glacial-interglacial timescales rather than a direct response to monsoon winds. Evidence of reduced chemical weathering and an increase in C4 plant material suggest more arid conditions between 70 and 10 ka. The mass-accumulation rate of CaCO3, a function of marine productivity, drastically increased between 70 and 10 ka and is correlated to a previously-documented increase in Bay of Bengal surface salinity. This evidence for a weakened summer monsoon and reduced stratification between 70 and 10 ka is correlated to elevated eastern Asian dust content in Greenland ice cores.

http://ig.utexas.edu/staff/steve-phillips/

OCT
06

De Ford Lecture Series: Jake Couvalt
4:00 PM

iPGST: Edward Marshall, UT Austin

  Start: September 28, 2016 at 12:00 pm     End: September 28, 2016 at 1:00 pm
 Location:JGB 3.222
 Contact:Emily H.G. Cooperdock, emilyhgoldstein@utexas.edu
Informal Petrology, Geochemistry, Structure and Tectonics Seminar

UTIG Seminar Series: Steve Phillips, Postdoc, UTIG

  Start: September 30, 2016 at 10:30 am     End: September 30, 2016 at 11:30 am
 Location:PRC ROC Room 1.603
 Contact:Peter Flemings, pflemings@jsg.utexas.edu, 512-475-9520
The influence of the Indian monsoon on productivity and sedimentation in the northern Bay of Bengal over the last glacial-interglacial cycle

The Indian monsoon drives seasonal changes in precipitation and runoff across India as well as circulation and productivity in the northern Indian Ocean. I will present a multi-proxy analysis of a sediment record (since 110 ka) from the offshore Mahanadi Basin recovered during the Indian National Gas Hydrate Program Expedition 01 (Site NGHP-01-19B) within the core convective region of the Indian monsoon. These results highlight the offshore Mahanadi Basin as a supply-dominated margin where terrigenous sedimentation is strongly influenced by monsoon intensity, and that biological productivity is likely limited by variation in monsoon-driven ocean stratification on glacial-interglacial timescales rather than a direct response to monsoon winds. Evidence of reduced chemical weathering and an increase in C4 plant material suggest more arid conditions between 70 and 10 ka. The mass-accumulation rate of CaCO3, a function of marine productivity, drastically increased between 70 and 10 ka and is correlated to a previously-documented increase in Bay of Bengal surface salinity. This evidence for a weakened summer monsoon and reduced stratification between 70 and 10 ka is correlated to elevated eastern Asian dust content in Greenland ice cores.

http://ig.utexas.edu/staff/steve-phillips/

De Ford Lecture Series: Jake Couvalt

  Start: October 6, 2016 at 4:00 pm     End: October 6, 2016 at 5:00 pm
 Location:JGB2.324

OCT
07

UTIG Seminar Series: Shuoshuo Han, Postdoc, UTIG
10:30 AM

iPGST: Edward Marshall, UT Austin

  Start: September 28, 2016 at 12:00 pm     End: September 28, 2016 at 1:00 pm
 Location:JGB 3.222
 Contact:Emily H.G. Cooperdock, emilyhgoldstein@utexas.edu
Informal Petrology, Geochemistry, Structure and Tectonics Seminar

UTIG Seminar Series: Steve Phillips, Postdoc, UTIG

  Start: September 30, 2016 at 10:30 am     End: September 30, 2016 at 11:30 am
 Location:PRC ROC Room 1.603
 Contact:Peter Flemings, pflemings@jsg.utexas.edu, 512-475-9520
The influence of the Indian monsoon on productivity and sedimentation in the northern Bay of Bengal over the last glacial-interglacial cycle

The Indian monsoon drives seasonal changes in precipitation and runoff across India as well as circulation and productivity in the northern Indian Ocean. I will present a multi-proxy analysis of a sediment record (since 110 ka) from the offshore Mahanadi Basin recovered during the Indian National Gas Hydrate Program Expedition 01 (Site NGHP-01-19B) within the core convective region of the Indian monsoon. These results highlight the offshore Mahanadi Basin as a supply-dominated margin where terrigenous sedimentation is strongly influenced by monsoon intensity, and that biological productivity is likely limited by variation in monsoon-driven ocean stratification on glacial-interglacial timescales rather than a direct response to monsoon winds. Evidence of reduced chemical weathering and an increase in C4 plant material suggest more arid conditions between 70 and 10 ka. The mass-accumulation rate of CaCO3, a function of marine productivity, drastically increased between 70 and 10 ka and is correlated to a previously-documented increase in Bay of Bengal surface salinity. This evidence for a weakened summer monsoon and reduced stratification between 70 and 10 ka is correlated to elevated eastern Asian dust content in Greenland ice cores.

http://ig.utexas.edu/staff/steve-phillips/

De Ford Lecture Series: Jake Couvalt

  Start: October 6, 2016 at 4:00 pm     End: October 6, 2016 at 5:00 pm
 Location:JGB2.324

UTIG Seminar Series: Shuoshuo Han, Postdoc, UTIG

  Start: October 7, 2016 at 10:30 am     End: October 7, 2016 at 11:30 am
 Location:PRC ROC Room 1.603
 Contact:Nathan Bangs, nathan@ig.utexas.edu, 512-471-0424

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