Indiana University Bloomington

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Recent Publications and Submissions from Geological Sciences faculty and scientists

Grant resources for seeking grant funds

Grants In Progress and Recent Grants

David Bish

Grants In Progress 2014:

Simon Brassell

Grants In Progress 2014:

James Brophy

Grants In Progress 2014

Bruce Douglas

Recent Grants Received

Doug Edmonds

Grants in Progress, 2014

Erika Elswick

Recent Grants Received

Julie Fosdick

Grants In Progress, 2014

Overview of project goals (2014-2015): This project aims to revise Quaternary fault displacements along the Mission Creek fault strand of the San Andreas Fault Zone in the San Gorgonio Pass area by evaluating the sedimentary provenance of displaced Quaternary alluvial fan deposits and the position of their restored drainages within the San Bernardino and Little San Bernardino Mountains. Results will enable us to evaluate whether or not fault slip on the Mission Creek fault strand decreases from the northern Coachella Valley as the fault enters the San Gorgonio Pass region, or if instead the fault strand is an important Quaternary to Holocene structure in accommodating lateral slip between the PA-NA plates.

Michael Hamburger

Grants In Progress, 2014

Grants Pending

Ed Herrmann

Recent Grants Received

Claudia Johnson

Recent Grants Received

Kaj Johnson

Grants In Progress, 2014:

Chusi Li

Grants In Progress, 2014:

Jackson Njau

Grants in Progress, 2014:

Greg Olyphant

Grants in Progress, 2014:

Gary Pavlis

Grants In Progress 2014:

This project seeks to apply state–of–the–art seismic monitoring and data analysis techniques to understand the deep geological structure and seismic activity in North America’s continental interior. The project will help us to better understand the basic geological processes that were involved in the assembly and evolution of our continent, as well as the processes that are continually modifying its structure. Ultimately, the research will help us better understand – and better prepare for – the hazards associated with future earthquakes in our region. The project is part of a national scientific initiative, dubbed "EarthScope", which includes the deployment of "USArray," the largest seismic network in the nation’s history. This project is utilizing instrumentation from the Earthscope Flexible Array. Professor Hamburger is a co-PI on this project. For additional information see the project web site at http://www.indiana.edu/~oiink

This project will utilize a unique technology developed at Indiana University called Plane Wave Migration. This technology is a form of scattered wave imaging that builds on concepts developed over the last 30 years for oil and gas exploration with the seismic reflection. Plane wave migration has produced the highest resolution images of the upper mantle of North America ever achieved by direct imaging of data from the USArray component of the Earthscope (http://www.earthscope.org). The USArray data collection effort is finishing and this project aims to produce the best high resolution images possible of the entire upper mantle of North America. This will be used to address three main science issues. (1) the geometry of the Farallon Plate which now underlies nearly all of North America; (2) are dipping interfaces we are imaging markers for mantle flow; and (3) what new insights do these new images provide on the 410 and 660 discontinuities and the region called the transition zone that lies between them.

This is an experimental program to deploy a state-of-the-art, three-dimensional seismic array in the Homestake Mine in the Black Hills of South Dakota. The Homestake Mine has been converted to an underground laboratory for scientific research that has made this experiment possible. Deployment is planned to begin in fall 2014 with operation of the experiment spanning the 2015 calendar year. The project is supported by the NSF’s INSPIRE program which aims to fund cutting edge project that cross multiple disciplines. This project is of interest to geophysics and the physics community doing research in gravity waves. The geophysical interest is fundamental data on seismic wave propagation in an anisotropic medium with known properties. The physics community is interested in this experiment to provide baseline data for a future gravity wave experiment in an underground site where the detector can be isolated from surface mass movements that have compromised the current facilities (http://www.ligo.caltech.edu/). This is a collaborative project led by the University of Minnesota. We at Indiana University are collaborators along with the California Institute of Technology.

David Polly

Grants In Progress, 2014:

This project transforms the vertebrate fossil record into a statistical paleoenvironmental proxy to study climate driven Earth-life transitions during the Miocene. We develop a probabilistic proxy that links functional anatomical traits in mammals and reptiles to temperature, precipitation, and vegetation cover. Our trait-based approach is taxon-free, which allows us to extend our method through time to the mid-continental Miocene of North America. The Miocene is a crucial interval for inferring paleoclimate because it included episodes of global climate change and floral transitions at estimated maximum pCO2 levels similar to those forecast for the next century. Regional-scale Miocene climates are poorly-known compared to global patterns, and previous proxy-based studies at regional scales have produced conflicting paleoenvironmental estimates. Our approach uses a Bayesian framework that allows us to explicitly test our new vertebrate proxies against independent pedogenic and paleobotanical evidence, and applies statistical probabilities to different paleoclimate estimates. Furthermore, it allows us to build fauna-wide ensemble forecasts that combine the predictive strengths of ectotherms (reptiles), which are linked to climate directly through their physiology and indirectly through their ecological interactions, and endotherms (mammals), which are buffered from temperature, but which often have dietary specializations for specific vegetation types.

Our objectives are:

  1. assemble a database of functional traits from Miocene vertebrate fossils at the local assemblage and biocenosis scale in the central Great Plains based on the extensive fossil collections of the Nebraska State Museum and biomolecular proxy data from select fossil localities
  2. develop Bayesian probabilistic climate spaces from sampled traits in modern faunas; (3) use the trait-climate spaces to estimate Miocene paleoenvironment and test for consilience between vertebrate estimates and independent proxies; (4) use the trait-based proxy results to test competing hypotheses of mid-continental floral composition and to determine the extent of coupling between global climate change and local environments during episodes of warming and cooling.

Lisa Pratt

Grants In Progress, 2014:

Grants Submitted

Ed Ripley

Grants In Progress, 2014:

Peter Sauer

Grants Submitted:

Juergen Schieber

Grants In Progress, 2014:

Arndt Schimmelmann

Grants In Progress, 2014:

Laura Wayslenki

Grants In Progress, 2014:

Bob Wintsch

Grants In Progress, 2014

Chen Zhu

Grants In Progress, 2014: