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Estella Atekwana's Publications

 Estella  ESTELLA  ATEKWANA

Department Head, Regents Professor of Geology
Sun Company Clyde Wheeler Chair Professor of Hydrogeology
Biogeophysics, Tectonics, Near Surface Geophysics

Office:    103B Noble Research Center
Phone:   1.405.744.6358
Fax:        1.405.744.7841
Email:     estella.atekwana@okstate.edu

PhD:       1991 Dalhousie University
M.S.        1986 Howard University
B.S.         1983 Howard University

Publications (* denotes student as first author)

 

Publications (* denotes student as first author)

  1. *Mewafy, F.M., D.D. Werkema, E.A. Atekwana, L.D. Slater, G.Z. Abdel Aal, A. Revil, and D. Ntarlagiannis, (2013), Evidence that biometallic mineral precipitation enhances the complex conductivity response at a hydrocarbon contaminated site, J. Appl. Geophys. 98 113–123.
  2. Gao S.S., K.H. Liu, C.A. Reed, Y. Yu, B. Massinque, H. Mdala, M. Moidaki, D. Mutamina, E.A. Atekwana, S. Ingate, and A.M. Reusch, SAFARI-Seismic Arrays for African Rift Eos Trans. AGU, 94, 213-214, doi: 10.1002/2013EO240002.
  3. *Rittgers J. B., A. Revil, M. Karaoulis, M. A. Mooney, L.D. Slater, and E.A. Atekwana (2013), 4D inversion of self-potential signals generated by the corrosion of buried metallic objects, Geophysics, 48 (5), doi:10.1190/GEO2013-0033.1.
  4. *Moidaki M., S.S. Gao, K.H Liu, and E. Atekwana (2013), Crustal thickness and moho sharpness beneath the Mid Continent Rift from receiver functions, Research in Geophysics, doi: 10.4081/rg.2013.e1
  5. Slater, L., and E. Atekwana (2013), Geophysical Signatures of Subsurface Microbial Processes, Eos Trans. AGU, 94(8), 77DOI: 10.1002/2013EO080001Revil, A., E. A. Atekwana, C. Zhang, A. Jardani, and S. Smith (2012), A new model for the spectral induced polarization signature of bacterial growth in porous media, Water Resour. Res., 48, W09545, doi:10.1029/2012WR011965.
  6. *Mosley-Bufford K., E. A. Atekwana, M. G. Abdelsalam, E. Shemang, E. A. Atekwana, K. Mickus, M. Moidaki, M. P. Modisi and L. Molwalefhe (2012), Geometry and Faults Tectonic Activity of the Okavango Rift Zone, Botswana: Evidence from Magnetotelluric and Electrical Resistivity Tomography Imaging, J. Afr. Ear. Sci doi:10.1016/j.jafrearsci.2012. Top most downloaded/read articles http://www.journals.elsevier.com/journal-of-african-earth-sciences/most-read-articles/.
  7. *Joyce R., D. Glasser, D. Werkema, and E.A. Atekwana (2011), Spectral induced polarization response to nanoparticles in a saturated sand matrix, J. Appl. Geophys., 77, 63–71 doi:10.1016/j.jappgeo.2011.11.009.
  8. *Mewafy, F. M., E. A. Atekwana, D. D. Werkema Jr., L. D. Slater, D. Ntarlagiannis, A. Revil, M. Skold, and G. N. Delin (2011), Magnetic susceptibility as a proxy for investigating microbially mediated iron reduction, Geophys. Res. Lett., 38, L21402, doi:10.1029/2011GL049271
  9. *Roden, J., M. G. Abdelsalam, E. Atekwana, G. El-Qady, E. A. Tarabees (2011), Structural influence on the evolution of the pre-Eonile drainage system of southern Egypt: Insights from magnetotelluric and gravity data, J. Afr. Ear. Sci., 61, p. 358-368 doi:10.1016/j.jafrearsci.2011.08.007.
  10. Slater, L.D. and E.A. Atekwana (2011), Biogeophysics, Encyclopedia of Solid Earth Geophysics, Harsh K. Gupta (ed.), DOI 10.1007/978-90-481-8702-7.
  11. Knight, R., L. J. Pyrak-Nolte, L. D. Slater, E. A. Atekwana, A. Endres, J. Geller, D. Lesmes, S. Nakagawa, A. Revil, M. M. Sharma, and C. Straley (2010), Geophysics at the interface: The response of geophysical properties to solid-fluid, fluid-fluid and solid-solid interfaces, Rev. Geophys., doi:10.1029/2007RG000242, in press.
  12. *Davis, C.A., L.D. Slater, B. Kulessa, A. Ferguson, E.A. Atekwana, R. Doherty, and R. Kalin, (2010), Self-potential signatures associated with an injection experiment at an in-situ biological permeable reactive barrier, Near Surface Geophysics, doi:10.3997/1873-0604.2010034.
  13. *Abdel Aal, G. Z., E. A. Atekwana, S. Rossbach, and D. D. Werkema (2010), Sensitivity of geoelectrical measurements to the presence of bacteria in porous media, J. Geophys. Res., 115, G03017, doi:10.1029/2009JG001279.
  14. *Abdel Aal, G. Z., E. A. Atekwana,and E. A. Atekwana (2010), Effect of bioclogging in porous media on complex conductivity signatures, J. Geophys. Res., 115, G00G07, doi:10.1029/2009JG001159.
  15. *Davis, C. A., L. J. Pyrak-Nolte, E. A. Atekwana, D. D. Werkema Jr., and M. E. Haugen (2010), Acoustic and electrical property changes due to microbial growth and biofilm formation in porous media, J. Geophys. Res., 115 G00G06, doi:10.1029/2009JG001143.
  16. Revil, A., C. A. Mendonça, E. A. Atekwana, B. Kulessa, S. S. Hubbard, and K. J. Bohlen (2010), Understanding biogeobatteries: Where geophysics meets microbiology, J. Geophys. Res., 115, G00G02, doi:10.1029/2009JG001065.
  17. Atekwana, E.A., and E.A. Atekwana (2010), Biogeophysical signatures of hydrocarbon contaminated sites, Surv. Geophys., DOI 10.1007/s10712-009-9089-8.
  18. *Hawkins, D., Mcguire, M., Abdel Aal, G.Z., Atekwana, E.A., and Werkema, D. D. (2010) Laboratory assessment of nano-silver transport in sand columns using complex conductivity measurements, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’10) April 11-15, 2010, Keystone Resort & Conference Center, Keystone, Colorado, USA.
  19. Atekwana, E.A., Abdel Aal, G. Z., and E. A. Atekwana (2010), Investigating the effect of bioclogging on electrical and flow and transport properties of porous media Symposium on the Application of Geophysics to Environmental and Engineering Problems, (SAGEEP’10) April 11-15, 2010, Keystone Resort & Conference Center, Keystone, Colorado, USA. Best Paper
  20. *Abdel Aal,G., E. Atekwana, S. Radzikowski, and S. Rossbach (2009), Effect of bacterial adsorption on low frequency electrical properties of clean quartz sands and iron-oxide coated sands, Geophys. Res. Lett., 36, L04403, doi:10.1029/2008GL036196.
  21. *Davis, C. A., L. J. Pyrak-Nolte, E. A. Atekwana, D. D. Werkema Jr., and M. E. Haugen (2009), Microbial-induced heterogeneity in the acoustic properties of porous media, Geophys. Res. Lett., 36, L21405, doi:10.1029/2009GL039569.
  22. Atekwana, E. A. and L. D. Slater (2009), Biogeophysics: A new frontier in Earth science research, Rev. Geophys., 47, RG4004, doi:10.1029/2009RG000285.
  23. Slater, L. and E. A. Atekwana (2009), Exploring the Geophysical Signatures Associated With Microbial Processes in the Earth: Biogeophysics Chapman Conference, Portland, Maine, 13-16 October, 2008, Eos Trans. AGU, 90 (10), p. 83.
  24. *Che-Alota, V., E.A. Atekwana, E.A. Atekwana, W.A. Sauck, and D.D. Werkema (2009), Temporal geophysical signatures from contaminant-mass remediation, Geophysics, 74(4), B113-B123.
  25. *Kinabo , B. D., J. P. Hogan, E. A. Atekwana, M. G. Abdelsalam, and M. P. Modisi (2008), Fault growth and propagation during incipient continental rifting: Insights from a combined aeromagnetic and Shuttle Radar Topography Mission digital elevation model investigation of the Okavango Rift Zone, northwest Botswana, Tectonics, 27, TC3013, doi:10.1029/2007TC002154.
  26. *Che-Alota, V., E.A Atekwana, E.A. Atekwana, W.A. Sauck, J.T. Nolan, and L.D. Slater (2008), Attenuated geophysical signatures associated with ongoing remediation efforts at Wurtsmith Air Force Base, Oscoda, Michigan, SEG-Extended Abstracts 2719-2733, SEG Las Vegas, Annual Meeting.
  27. *Joyce, R., V. Che-Alota, E.A. Atekwana, E.A. Atekwana, D.D. Werkema, S. Rossbach, G.Z. Abdel Aal, C. Davis, and J. Nolan (2008), Temporal geophysical investigations of the FT-2- plume at the Wurtsmith Air Force Base, Oscoda, Michigan, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’08) April 8-11, 2008. Philadelphia, PA, 242-254.
  28. *Allen, J. P., E. A. Atekwana, E. A. Atekwana, J. W. Duris, D. D. Werkema, and S. Rossbach (2007), The microbial community structure in petroleum-contaminated sediments corresponds to geophysical signatures, Appl. Environ. Microbiol. 73:2860-2870 doi:10.1128/AEM.01752-06.
  29. *Kinabo, B.D., E.A. Atekwana, J.P. Hogan, M.P. Modisi, D.D. Wheaton and A.B. Kampunzu (2007), Early structural development of the Okavango rift zone, NW Botswana, J. Afr. Ear. Sci., doi:10.1016/j.jafrearsci.2007.02.005. ScienceDirect TOP25 Hottest Articles.
  30. *Ntarlagiannis, D., E. A. Atekwana, E. A. Hill, and Y. Gorby (2007), Microbial nanowires: Is the subsurface “hardwired”?, Geophys. Res. Lett., 34, L17305, doi:10.1029/2007GL030426.
  31. Singha, K., R. Knight, L. Slater, E. Atekwana, and A. Binley (2006), Near-surface geophysics: A new focus group Eos Trans. AGU, 87, , doi:10.1029/2006EO250008.
  32. *Moidaki, M., Heeszel, D., Ahmad, K.M., Chasten, L.E., Gallagher, B., Wheaton, D., Abdel Aal, G.Z., Anderson, N.L., and Atekwana, E.A. (2006), Investigating dam seepage using geophysical methods: Providing hands-on geophysical experience to geological sciences & engineering students, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’06) April 2-6 Bellevue, WA, 298-307.
  33. *Davis, C. A., E. Atekwana, E. Atekwana, L. D. Slater, S. Rossbach, and M. R. Mormile (2006), Microbial growth and biofilm formation in geologic media is detected with complex conductivity measurements, Geophys. Res. Lett., 33, L18403, doi:10.1029/2006GL027312.
  34. *Abdel Aal, G.Z., L.D. Slater, E.A. Atekwana (2006), Induced polarization measurements on unconsolidated sediments from a site of active hydrocarbon biodegradation, Geophysics,71, p. H13–H24,doi.10.1190/1.2187760. Honorable Mention for Best Paper in Geophysics 2007.
  35. Atekwana, E.A., D.D. Werkema, and E.A. Atekwana (2006), Biogeophysics: The Effects of microbial processes on geophysical properties of the shallow subsurface, NATO Science Series Applied Hydrogeophysics 10.1007/978-1-4020-4912-5_6 H. Vereecken et al. (eds.), 161–193.
  36. *Mickle, J. R., Endres, A.L., and Atekwana, E.A. (2006), A coupled hydrogeological-petrophysical analysis of geophysical variations in the vadose zone, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’06) April 2-6 Bellevue, WA, 1524-1531.
  37. *Werkema, D.D., Atekwana, E.A., Atekwana, E.A. (2006), Conductivity profile rate of change from field and laboratory data within biodegrading petroleum hydrocarbon, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’06) April 2-6 Bellevue, WA, 1707-1714.
  38. *Davis, C.A., Atekwana, E.A., Bottrell, P., Heidenreich, J., Atekwana, E.A., Slater, L.D., Rossbach, S., and Mormile, M. (2006), Laboratory-scale investigation of the effect of microbial growth on the geoelectrical properties of porous media, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’06) April 2-6 Bellevue, WA, 1598-1606.
  39. *Abdel Aal, G.Z., Davis, C.A., and Atekwana, E.A. (2006), Effect of microbial metabolic byproducts on electrical properties of unconsolidated sediments, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’06) April 2-6 Bellevue, WA, 1587-1591.
  40. Atekwana E.A., E.A. Atekwana, F.D. Legall, and R.V. Krishnamurthy (2005), Biodegradation and mineral weathering controls on bulk electrical conductivity in a shallow hydrocarbon contaminated aquifer, J. Con. Hyd.,80, 149-167. doi:10.1016/j.jconhyd.2005.06.009.
  41. Abdelsalam, M.G., G. R. Keller, S. L. Klemperer, and E. A. Atekwana (2004), The life cycle of continental rifting as a focus of US-African scientific collaboration, Eos Trans. AGU, 85, , doi:10.1029/2004EO470004.
  42. Atekwana , E. A., E. Atekwana, F. D. Legall, and R. V. Krishnamurthy (2004), Field evidence for geophysical detection of subsurface zones of enhanced microbial activity, Geophys. Res. Lett., 31, L23603, doi:10.1029/2004GL021576.
  43. Atekwana, E.A., E.A. Atekwana, R.S. Rowe, D.D. Werkema, and F.D. Legall (2004), Total dissolved solids in groundwater and its relationship to bulk conductivity of soils contaminated with hydrocarbon, J. Appl. Geophys. 56 (2004), p. 281–294 doi:10.1016/j.jappgeo.2004.08.003.
  44. Atekwana E.A., E. A. Atekwana, D. D. Werkema, J. P. Allen, L. A. Smart, J. W. Duris, D. P. Cassidy, W. A. Sauck, and S. Rossbach (2004) Evidence for microbial enhanced electrical conductivity in hydrocarbon-contaminated sediments, Geophys. Res. Lett., 31, L23501, doi:10.1029/2004GL021359, 2004
  45. *Abdel Aal, G.Z., E. A. Atekwana, L. D. Slater, and E. A. Atekwana (2004), Effects of microbial processes on electrolytic and interfacial electrical properties of unconsolidated sediments, Geophys. Res. Lett., 31, L12505, doi:10.1029/2004GL020030.
  46. Atekwana, E. A., E. A. Atekwana, D. D. Werkema, J. P. Allen, L. A. Smart, J. W. Duris, D. P. Cassidy, W. A. Sauck, and S. Rossbach (2004), Evidence for microbial enhanced electrical conductivity in hydrocarbon-contaminated sediments, Geophys. Res. Lett., 31, L23501, doi:10.1029/2004GL021359.
  47. Atekwana, E.A., Atekwana, E.A, Legall, F.D., Krishnamurthy, R.V. and Sauck, W.A. (2004), Relationship between biodegradation and bulk electrical conductivity, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’04) March 26-28 Colorado Springs, CO, 354-362.
  48. *Abdel Aal, G.Z., Atekwana, E.A., Slater, L.D. and Atekwana, E.A. (2004), Effect of different phases of diesel biodegradation on low frequency electrical properties of unconsolidated sediments: Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’04), Colorado Springs, CO, 386-395.
  49. *Werkema, D.D., Atekwana, E.A., Atekwana, E.A., Rossbach, S. and Sauck, W.A., (2004), Laboratory and field results linking high conductivities to the microbial degradation of petroleum hydrocarbons: Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’04), March 26-28 Colorado Springs, CO, 363-373.
  50. *Werkema , D. D., E. A. Atekwana, A. L. Endres, W. A. Sauck, and D. P. Cassidy (2003), Investigating the geoelectrical response of hydrocarbon contamination undergoing biodegradation, Geophys. Res. Lett., 30, 1647, doi:10.1029/2003GL017346.
  51. Atekwana, E.A., Atekwana, E.A. and Rowe, R. S. (2003), Relationship between total dissolved solids and bulk conductivity at a hydrocarbon-contaminated aquifer (SAGEEP’03), April 6-10, San Antonio TX, 228-237.
  52. *Abdel Aal, G.Z., Atekwana, E.A., Slater, L.D. and Ulrich, C. (2003), Induced polarization (IP) measurements of soils from an aged hydrocarbon contaminated site (SAGEEP’03), April 6-10, San Antonio TX, 190-201.
  53. *Burton, M.E., Atekwana, E.A. and Atekwana, E.A. (2003), Mineral grain surface observations at a hydrocarbon-contaminated aquifer: implications for the geoelectrical properties of soils (SAGEEP’03), April 6-10, San Antonio TX., 271-280.
  54. *Werkema D.D. Jr., Atekwana, E.A.and Sauck, W.A., (2002), Temporal and spatial variability of high resolution in situ vertical apparent resistivity measurements at a LNAPL impacted site, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’ 02), February 10-14, Las Vegas, NV, paper 13ESC4.
  55. Ranganai, R.T., Atekwana, E.A., King, J. G. and Ngwisanyi, T.H. (2002), Case histories of environmental and engineering geophysics in Botswana, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’ 02), February 10-14, Las Vegas, NV, paper P12.
  56. *Mwanda, K.O, Atekwana, E.A. and Sauck, W.A. (2002), Multi-method geophysical examination of a hydrocarbon contaminated site, Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP’ 02), February 10-14, Las Vegas, NV, paper 13ESC14.
  57. Atekwana, E.A., W.A. Sauck, Z.G. Abdel Aal., and D.D. Werkema, Jr., (2002), Geophysical investigation of vadose zone conductivity anomalies at a hydrocarbon contaminated site: implications for the assessment of intrinsic bioremediation, J. Environ. Eng., 7, 103-110.
  58. Cassidy, D.P., A.J. Hudak, D.D. Werkema, Jr., E.A. Atekwana, S. Rossbach, J.W. Duris, E.A. Atekwana, W.A. Sauck (2002), In situ rhamnolipid production at an abandoned petroleum refinery, J. Soil and Sed. Con., 11, 769-787. DOI: 10.1080/20025891107087
  59. R. T. Ranganai, A. B. Kampunzu, E. A. Atekwana, B. K. Paya, J. G. King, D. I. Koosimile, E. H. Stettler (2002), Gravity evidence for a larger Limpopo Belt in southern Africa and geodynamic implications, Geophy. J. Int., 149, F9-F14. DOI: 10.1046/j.1365-246X.2002.01703.x
  60. Cassidy, D.P., D.D. Werkema, W.A. Sauck, E.A. Atekwana, S. Rossbach, and J. W. Duris (2001), The effects of LNAPL biodegradation products on electrical conductivity measurements, J. Environ. Eng. Geophy., 6, 47-52.
  61. Bogatsu B., E.A., Atekwana, G. Ekosse, E.A. Atekwana, O. Totolo (2000), Hydrogeochemical impacts of the Gaborone landfill on its surrounding subsurface environments, Botswana Notes and Records, 32 , 159-164.
  62. Modisi, M.P., E.A. Atekwana, A.B. Kampunzu, and T.H. Ngwisanyi, (2000), Rift kinematics during the incipient stages of continental fragmentation: evidence from the nascent Okavango rift basin, NW Botswana, Geology, 28, 939-946.
  63. *Werkema, Jr., D.D., E.A. Atekwana,and J.A. Asumadu (2000), A Generic automated and semi-automated digital multi-electrode instrument for field resistivity measurements, IEEE Transaction on Instrumentation and Measurement, 49, 1249-1253.
  64. Atekwana, E.A.,44, 167-180. doi:10.1016/S0926-9851(98)00033-0. ScienceDirect TOP25 Hottest Articles
  65. *Werkema, Jr., D.D., E.A. Atekwana, W.A. Sauck, and J.A. Asumadu, (1998), A versatile windows based multi-electrode acquisition system for dc electrical methods survey, Env. Geosciences, 5, 1-12.
  66. Sauck, W.A., E.A. Atekwana, and M.S. Nash (1998), High electrical conductivities associated with an LNAPL plume imaged by integrated geophysical techniques, J. Environ. Eng. Geophys., 2, 203-212.
  67. *Bermejo, J.L., W.A. Sauck, and E.A. Atekwana (1997), Geophysical discovery of an LNAPL plume at Wurtsmith AFB, Ground Water Monitoring and Remediation, 17, 131-137.
  68. Atekwana, E.A., (1996), A regional assessment of mapped geological and geophysical features of the Precambrian Basement within the Midcontinent Rift area, Geological Society of America Special Paper 308, 33-44.
  69. Atekwana, E.A., P.L. Agendia, E.A, Atekwana, and T. Fonkou, T. (1995), Wetland vegetation colonization and expansion in small impoundments in Yaounde, Cameroon, West Africa, Wetlands, 15, 354-364.70.    Atekwana, E.A., M.H. Salisbury, J. Verhoef, and N. Culshaw, N. (1994), Ramp-flat geometry underneath the central Kapuskasing uplift? Evidence from potential field modeling, Can. J. Ear. Sci., 31, 1027-1041.
  70. Atekwana, E.A., M.H. Salisbury, J. Verhoef, and N. Culshaw, N. (1994), Ramp-flat geometry underneath the central Kapuskasing uplift? Evidence from potential field modeling, Can. J. Ear. Sci., 31, 1027-1041.
  71. Atekwana, E. A., F. M. Mewafy, G. Abdel Aal, D. D. Werkema Jr., A. Revil, and L. D. Slater (2014), High-resolution magnetic susceptibility measurements for investigating magnetic mineral formation during microbial mediated iron reduction, J. Geophys. Res. Biogeosci., 119, doi:10.1002/2013JG002414.


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