Faculty

Faculty

Bermingham, Katherine

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  • Position: Assistant Professor
  • Office: WL-301
  • Phone: 848-445-0922

High precision isotope geochemistry and cosmochemistry; the integration of high precision isotope data and astrophysical modelling; and mass spectrometry (TIMS, LA-ICP-MS, L-ICP-MS).

Oliver Withjack, Martha

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  • Position: Professor
  • Office: 243A Wright Geological Laboratory
  • Phone: (732) 445-6974
  • Email: drmeow3@eps.rutgers.edu

Education

  • B.A., Rutgers University 
  • M.A., Ph. D., Brown University

Courses

  • Undergraduate: Field Geology,Structural Geology,Tectonics and Regional Structural Geology
  • Graduate: Advanced Tectonics; Acquisition, Processing & Interpretation of Seismic Reflection Data; Modeling in Structural Geology: Geometric, Experimental & Numerical

Research Interests

  • Extensional tectonics; rift-basin and passive-margin development; experimental modeling of geologic structures; seismic interpretation; petroleum geology

Publications

  • Schlische, R.W., Withjack, M.O., and Olsen, P.E., 2002, Relative timing of CAMP, rifting, continental breakup, and inversion: tectonic significance, in Hames, W.E., McHone, G.C., Renne, P.R., and Ruppel, C.R., eds., The Central Atlantic Magmatic Province: Insights from Fragments of Pangea: American Geophysical Union Monograph 136, p. 33-59. >>PDF File
  • Schlische, R.W., Withjack, M.O., and Eisenstadt, G., 2002, An experimental study of the secondary deformation produced by oblique-slip normal faulting: AAPG Bulletin, v. 86, p. 885-906.  >>PDF file
  • Ackermann, R.V., Schlische, R.W., and Withjack, M.O., 2001, The geometric and statistical evolution of normal fault systems: an experimental study of the effects of mechanical layer thickness on scaling laws: Journal of Structural Geology, v. 23, p. 1803-1819. >>PDF file
  • Clifton, A.E., Schlische, R.W., Withjack, M.O., and Ackermann, R.V., 2000, Influence of rift obliquity on fault-population systematics: results of clay modeling experiments: Journal of Structural Geology, v. 22, p. 1491-1509. >>PDF file
  • Withjack, M. O., and Callaway, J. S., 2000, Active normal faulting beneath a salt layer -- an experimental study of deformation in the cover sequence:  AAPG Bulletin, v. 84, p. 627-651. >>PDF file
  • Clifton, A.E., Schlische, R.W., Withjack, M.O., and Ackermann, R.V., 2000, Influence of rift obliquity on fault-population systematics: results of clay modeling experiments: Journal of Structural Geology, v. 22, p. 1491-1509. >>PDF file
  • Withjack, M.O., Schlische, R.W., and Olsen, P.E., 1998, Diachronous rifting, drifting, and inversion on the passive margin of central eastern North America: An analog for other passive margins: AAPG Bulletin, v. 82, p. 817-835. >>PDF File
  • Withjack, M. O., Olsen, P. E., and Schlische, R. W., 1995, Tectonic evolution of the Fundy basin, Canada: Evidence of extension and shortening during passive-margin development: Tectonics, v. 14, p. 390-405.
  • Withjack, M., Islam, Q., and LaPointe, P., 1995, Normal faults and their hanging-wall deformation--an experimental study:  AAPG Bulletin, v. 79, p. 1-18. >>PDF file
  • Eisenstadt, G., and Withjack, M., 1995, Estimating inversion--results from clay-model studies:  in Basin Inversion, Geological Society of London, Special Publication 88, p. 119-136.
  • Withjack, M., and Islam, Q., 1993, Origin of rollover--a discussion:  AAPG Bulletin, v. 77, p. 657-658.
  • Withjack, M., and Peterson, E., 1993, Prediction of normal-fault geometries--a sensitivity analysis:  AAPG Bulletin, v. 77, p. 1860-1873. >>PDF file
  • Withjack, M., Olson, J., and Peterson, E., 1990, Experimental models of extensional forced folds:  AAPG Bulletin, v. 74, p. 1038-1054.

Extensional Tectonics Working Group at Rutgers

Structural Geology and Tectonics at Rutgers (PDF file; 816 KB)

Wright, James D.

Education

  • Ph.D., M.Phil., Columbia University
  • M.S., University of South Carolina
  • B.S., Louisiana Tech University
  • B.S., Ouachita Baptist University

Courses

  • Undergraduate: Planet Earth (01:460:100), Major Events in Earth History (01:460:480)
  • Graduate:  Paleoceanography, Stable Isotopes in the Environment, Marine Geology

Research Interests

  • My research interest is understanding how past ocean circulation changes influenced climates over a variety of time scales.  Working with pre-Pleistocene sediments, I have reconstructed the deep-water circulation patterns in the North Atlantic for the past 25 million years.   Changes in North Atlantic deep circulation correlate with major climate changes that occurred during this time interval.  For example, decreases or shutdowns in the North Atlantic deep water source over the past 15 million years coincided with the initiation of small northern hemisphere ice sheets during the middle Miocene and their growth into the large ice sheets during the late Pliocene.  The cyclic behavior of these ice sheets has dominated global climate over the past 3 million years.  While the cold climates correspond to a weakened conveyor circulation, the warm climates of the early Pliocene occurred when the conveyor circulation was more vigorous than today.


    I am also working on late Pleistocene and Holocene projects.   One of the outstanding problems in millennial-scale variability in the North Atlantic over the past 80 thousand years is an accurate depiction of the surface salinity variations.  These should have a profound effect on the surface and deep water circulation patterns in the North Atlantic and heat budgets for the northern hemisphere.  Taking advantage of the different life cycles in multiple species of planktonic foraminifera , it appears that the interspecificss δ18O relationships reflect surface water salinity changes.  I am also working on reconstructing the marine climates along northwestern Peru.  Other workers have shown that there were profound changes in the marine fauna and flora as well as an evolution from grasslands to desert environments on land.  The stable isotope records from foraminifera, mollusks and organic matter should help to reconstruct differences in the mean annual and seasonality along coastal Peru.

My primary research tool is the analysis of stable oxygen and carbon isotopes in marine organisms, which record the history of sea surface temperature variations, ice volume changes, and reorganization of surface and deep-water circulation patterns.  In the spring of 1999, we installed a Micromass Optima mass spectrometer with a Multiprep device for the automated analysis of δ18O and δ13C values in carbonate samples and δ18O values in water samples.
 

LIST OF PUBLICATIONS

Sherrell, Robert

Education

  • B.A., Oberlin College
  • Ph.D., Massachusetts Institute of Technology/Woods Hole Oceanographic Institution

Courses

  • Undergraduate: Environmental Geochemistry

Research Interests

  • Geochemistry of marine and fresh waters; paleochemical records in ice cores