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Dr. Regina DeWitt

Regina Dewitt
  • Associate Professor
  • PhD, University of Heidelberg, 2002
  • Office Location: Austin 126 A (Enter through 129)
  • Office Hours: Monday, Wednesday 9:00am-10:00am; Tuesday 8:30am-10:30am; Thursday 9:30am-10:30am
  • Telephone: (252) 328-4980
  • Email: dewittr@ecu.edu
  • Newsletter
  • LAB Link

Publications:

Simms, A. R., Ivins, E. R., DeWitt, R., Kouremenos, P., & Simkins, L. M. (2012). Timing of the most recent Neoglacial advance and retreat in the South Shetland Islands, Antarctic Peninsula: Insights from raised beaches and Holocene uplift rates. Quaternary Science Reviews, 47, 41-55.

Ferreira Guedes, C. C., Giannini, P. C., Sawakuchi, A. O. , DeWitt, R., Nascimento, D. R. , V.A. Aguiar, M.G. Rossi, (2011). Determination of controls on Holocene barrier progradation through application of OSL dating: The Ilha Comprida Barrier example, Southeastern Brazil. Marine Geology, 285 (1-4), 1-16.

Sholom, S., DeWitt, R., Simon, S. L. , Bouville, A., & McKeever, S. W. (2011). Emergency OSL dosimetry using different materials. Radiation Measurements, 46 (12), 1866-1869.

Kadereit, A., DeWitt, R., & Johnson, T. C. (in press, 2012). Luminescence properties and optically (post-IR blue-light) stimulated luminescence dating of limnic sediments from northern Lake Malawi Chances and limitations. Quaternary Geochronology.

Sholom, S., DeWitt, R., Simon, S. L. , Bouville, A., & McKeever, S. W. (2011). OSL-Based Dose Estimation Using Human Tooth Enamel. Radiation Measurements, 46 (9), 778-782.

Sawakuchi, A. O., Blair, M. W., DeWitt, R., Faleiros, F. M. , Hyppolito, T. N. , C.C. Ferreira Guedes, (2011). Thermal history versus sedimentary history: OSL sensitivity of quartz grains extracted from rocks and sediments. Quaternary Geochronology, 6, 261-272.

Simms, A. R., Kouremenos, P., DeWitt, R., & Drewry, A. M. (2011). A New Approach to Reconstructing Sea Levels in Antarctica Using Optically Stimulated Luminescence of Cobble Surfaces. Quaternary Geochronology, 6, 50-60.

Sawakuchi, A. O., DeWitt, R., & Faleiros, F. M. (2011). Correlation between thermoluminescence sensitivity and crystallization temperatures of quartz: potential application in geothermometry. Radiation Measurements, 46, 51-58.

DeWitt, R., Klein, D. M., Yukihara, E. G. , Simon, s. L. , & McKeever, S. W. (2010). Optically stimulated luminescence (OSL) of tooth enamel and its potential use in post-exposure triage. Health Physics, 98 (2), 432-439.

Thompson, J. W., Burdette, K. E., Inrig, E. L. , DeWitt, R., Mistry, R., W.J. Rink, D.R. Boreham, (2010). Optically-stimulated luminescence dosimetry with gypsum wallboard (drywall). Radiation Protection Dosimetry, 141 (1), 1-9.

McKeever, S. W., Blair, M. W., Yukihara, E. G. , & DeWitt, R. (2010). The effects of low ambient temperatures on optically stimulated luminescence (OSL) processes: Relevance to OSL dating of martian sediments. Radiation Measurements, 45, 60-70.

Timmons, E. A., Rodriguez, A. B., Mattheus, C. R. , & DeWitt, R. (2010). Transition of a regressive to a transgressive barrier island as a function of back-barrier erosion, climate change, and low sediment supply, Bogue Banks, North Carolina, USA. Marine Geology, 278 (1-4), 100-114.

Simms, A. R., Aryal, N., Yokoyama, Y., Matsuzaki, H., & DeWitt, R. (2009). Insights on a Proposed Mid-Holocene Highstand along the Northwestern Gulf of Mexico from the Evolution of Small Coastal Ponds within a Semiarid Setting. Journal of Sedimentary Research, 79, 757-772.

Simms, A. R., DeWitt, R., Rodriguez, A. B. , Lambeck, K., & Anderson, J. B. (2009). Revisiting Marine Isotope Stage 3 and 5a (MIS3-5a) Sea Levels Within the Northwestern Gulf of Mexico. Global and Planetary Change, 66, 100-111.

savage, S. H., Keller, D. R., & Tuttle, C. A. (2008). Archaeology in Jordan, 2007 Season. American Journal of Archaeology, 112 (3), 509-528.

Ankjærgaard, C., Jain, M., Kalchgruber, R., Lapp, T., Klein, D. M. , S.W.S. McKeever, A.S. Murray, P. Morthekai, (2009). Further investigations into pulsed optically stimulated luminescence from feldspars using blue and green Light. Radiation Measurements, 44, 576-581.

Sawakuchi, A. O., Kalchgruber, R., Giannini, P. C. , Nascimento, D. R. , Guedes, C. C. , N.K. Umisedo, (2008). The development of blowouts and foredunes in the Ilha Comprida barrier (Southeastern Brazil): the influence of Late Holocene climate changes on coastal sedimentation. Quaternary Science Reviews, 27, 2076-2090.

Savage, S. H. & Keller, D. R. (2007). Archaeology in Jordan, 2006 Season. American Journal of Archaeology, 111 (3), 523-574.

Blair, M. W., Kalchgruber, R., & McKeever, S. W. (2007). Developing Luminescence Dating for Extraterrestrial Applications: Characterization of Martian Simulants and Minerals. Radiation Measurements, 42, 392 399.

Kalchgruber, R., Blair, M. W., McKeever, S. W. , Benton, E. R. , & Reust, D. K. (2007). Progress towards robotic in-situ dating of martian sediments using optically stimulated luminescence. Planetary and Space Science, 55, 2203-2217.

Savage, S. H. & Keller, D. R. (2006). Archaeology in Jordan, 2005 Season. American Journal of Archaeology, 110 (3), 471-491.

McKeever, S. W., Kalchgruber, R., Blair, M. W. , & Deo, S. (2006). Development of methods for in situ dating of martian sediments. Radiation Measurements, 41, 750-754.

Kalchgruber, R., Blair, M. W., & McKeever, S. W. (2006). Dose recovery with plagioclase and pyroxene samples as surrogates for Martian surface sediments. Radiation Measurements, 41, 762-767.

Bisson, M., Nowell, A., Cordova, C., & Kalchgruber, R. (2006). Human Evolution at the Crossroads. An Archaeological Survey in NW Jordan. Near Eastern Archaeology, 69 (2), 73-85.

Kalchgruber, R. & Wagner, G. A. (2006). Separate assessment of natural beta and gamma dose rates with TL from Al2O3:C single crystal chips. Radiation Measurements, 41 (2), 154-162.

Cordova, C. E., Porter, J. C., Lepper, K., Kalchgruber, R., & Scott, G. (2005). Preliminary assessment of sand dune stability along a bioclimatic gradient, North-Central and Northwestern Oklahoma. Great Plains Research, 15, 227-249.

Kalchgruber, R., Fuchs, M., Murray, A. S. , & Wagner, G. A. (2003). Evaluating dose-rate distributions in natural sediments using a-Al2O3:C grains. Radiation Measurements, 37, 293-297.

Secu, M., Kalchgruber, R., Schweizer, S., Spaeth, J. M. , & Edgar, A. (2002). Photostimulated Luminescence in BaX2:Eu2+ (X = Br, Cl) X-ray storage phosphors. Radiation Effects and Defects in Solids, 157, 957-962.

Kalchgruber, R., Goeksu, H. Y., Hochhaeuser, E., & Wagner, G. A. (2002). Monitoring environmental dose rate using Risø TL/OSL readers with built-in sources: Recommendations for users. Radiation Measurements, 35, 585-590.

Eimueller, T., Kalchgruber, R., Fischer, P., Schuetz, G., Guttmann, P., G. Schmahl, M. Köhler, K. Prügl, M. Scholz, F. Bammes and G. Bayreuther, (2000). Quantitative imaging of magnetization reversal in FeGd multilayers by magnetic transmission x-ray microscopy. Journal of Applied Physics, 87, 6478 6480.

Habermann, J., Schilles, T., Kalchgruber, R., & Wagner, G. A. (2000). Steps towards surface dating using luminescence. Radiation Measurements (32), 847-851.

Fischer, P., Eimueller, T., & Kalchgruber, R. (1999). X-ray magnetic circular dichroism used to image magnetic domains. Journal of Synchrotron Radiation, 6, 688-690.

DeWitt, R. & McKeever, S. W. (2011). ODIN: A Prototype Luminescence Reader for in situ Dating of Martian Regolith. 2011 IEEE Aerospace Conference. Big Sky, Montana.

Simms, A. R., Ivins, E., DeWitt, R., Kouremenos, P., & Simkins, L. (in press, 2012). Changes in relative sea level during the "Little Ice Age" within the South Shetland Islands of Antarctica. SLALOM 2012.

Simms, A. R., Anderson, J. B., DeWitt, R., & Lambeck, K. (in press, 2012). Subsidence in the northwestern Gulf of Mexico: A late Pleistocene Texas perspective. AAPG 2012 Annual Convention & Exhibition.

Simkins, L. M., Simms, A. R., & DeWitt, R. (in press, 2012). Relative sea-level history of Marguerite Bay derived from optically stimulated luminescence-dated beach cobbles. XXXII SCAR Open Science Conference and SCAR Meetings.

Cordova, C. E., Rollefsen, G. E., Kalchgruber, R., Wilke, P., & Quintero, L. (2008). Natural and Cultural Stratigraphy of 'Ayn as-Sawda, Azraq Wetland Reserve: 2007 Excavation Report and Discussion of Finds. Annual of the Department of Antiquities of Jordan, 52, 417-425.

Cordova, C. E., Nowell, A., Bisson, M., Kalchgruber, R., & al-Nahar, M. (2007). Geomorphological assessment of Middle Paleolithic sites on the Madaba Plateau. Annual of the Department of Antiquities of Jordan, 51, 329-337. 191-195 (2000).