Teofilo A. Abrajano

Details

Dr. Teofilo A. Abrajano, Jr. is a Balik Scientist of DOST. He specializes in isotope geochemistry, geochemistry, biogeochemistry, and earth science. His research covered areas like ophiolites, petroleum biomarkers, polycyclic aromatic hydrocarbons (PAHs), isotope fractionation, paleoceanography, isotope analysis, molecular and isotope characterization, molecular tracers, and sediments.

Sex: Male

Education:

  • Washington University, 1 Brookings Dr, St. Louis, MO 63130, United States, Doctor of Philosophy in Earth and Planetary Sciences, 1984
  • University of Akron, 302 E Buchtel Ave, Akron, OH 44325, United States, Master of Science in Earth Sciences, 1981
  • University of the Philippines, Diliman, Quezon City, Bachelor of Science in Geology, 1977

Field of Specialization:

Earth Sciences, Environmental Sciences, Geoscience and Geology, Geochemistry, Isotope Geochemistry, Biogeochemistry

Researches

Abrajano, T.A., Jr., Murphy, D.E., Fang, J., Comet, P., & Brooks, J.M., (1994) 13C/12C ratios in individual fatty acids of marine mytilids with and without bacterial symbionts Organic Geochemistry Volume 21, No. 6-7

Abrajano, T.A., Jr., Yan, B., & O'Malley, V., (2010) 9.13 High Molecular Weight Petrogenic and Pyrogenic Hydrocarbons in Aquatic Environments
Isotope Geochemistry: A derivative of the Treatise on Geochemistry

Hiscott, R.N., Aksu, A.E., Mudie, P.J., Marret, F., Abrajano, T., Jr., Kaminski, M.A., Evans, J., Cakiroglu, A.I., & Yaşar, D., (2007) A gradual drowning of the southwestern Black Sea shelf: Evidence for a progressive rather than abrupt Holocene reconnection with the eastern Mediterranean Sea through the Marmara Sea Gateway
Quaternary International Volume 167

Yan, B., Abrajano, T.A., Jr., Bopp, R.F., Benedict, L.A., Chaky, D.A., Perry, E., Song, J., & Keane, D.P., (2006) Combined application of δ13C and molecular ratios in sediment cores for PAH source apportionment in the New York/New Jersey harbor complex
Organic Geochemistry Volume 37, No. 6

Ramos, C.S., Parrish, C.C., & Abrajano, T., Jr., (2003) Molecular and carbon isotopic variations in lipids in rapidly settling particles during a spring Phytoplankton bloom
Organic Geochemistry

Abrajano, T., Jr., Helleur, H., & Pulchan, K., (2003) TMAH thermochemolysis characterization of marine sedimentary organic matter in a Newfounfland fjord
Organic Geochemistry Volume 34, No. 2

Stark A., Abrajano T., Jr., Helleoub J., & Metcalf-Smith, J., (2003) Molecular and isotopic characterization of polycylic aromatic hydrocarbon distribution and sources at the international segment of the St. Lawrence River
Organic Geochemistry Volume 34, No. 2

Namocatcat, J.A., Fang, J., Barcelona, M.J., Quibuyen, A.T.O., & Abrajano, T.A., Jr., (2003) Trimethylbenzoic acids as metabolite signatures in the biogeochemical evolution of an aquifer contaminated with jet fuel hydrocarbons
Journal of Contaminant Hydorology Volume 67, No. 1

Canuel, E.A., Abrajano, T.A., Jr., Bianchi, T.S., & Macko, A., (2003) Sources and fate of biogenic and anthropogenic organic matter in freshwater and estuaring systems
Organic Geochemistry Volume 34, No. 2

Aksu, A.E., Hiscott, R.N., Kaminski, M.A., Mudie, P.J., Gillespie, H., Abrajano, T.A., Jr., & Yaşar, D., (2002) Last glacial-Holocene paleoceanography of the Black Sea and Marmara Sea: stable isotopic, foramineferal and coccolith evidence
Marine Geology Volume 190, No. 1

Aksu, A.E., Hiscott, R.N., Mudie, P.J., Rochon, A., Kaminski, M.A., Abrajano, T., Jr., & Yaşar, D., (2002) Persistent holocene outflow from the Black Sea to the Eastern Mediterranean contradicts Noah's Flood hypothesis
GSA Today Volume 12, No. 5

Abrajano, T., Jr., Aksu, A.E., Hiscott, R.N., & Mudie, P.J., (2002) Aspects of Carbon Isotopic Biogeochemistry of Late Quaternary Sediments from the Marmara Sea and Black Sea
Marine Geology Volume 190, No. 1

Fang J., Barcelona M., Abrajano T., Jr., Yuichi Nogi, & Kato, C., (2002) Isotopic composition of fatty acids of extremely piezophilic bacteria from the Mariana Trench at 11,000 m
Marine Chemistry Volume 80, No. 1

Huang, L., Sturchio, N.C., Abrajano, T., Jr., Heraty, L.J., & Holt, B., (1999) Carbon and Chlorine isotope fractionation of chlorinated aliphatic hydrocarbons by evaporation
Organic Geochemistry Volume 30, No. 8

Heraty, L.J., Fuller, M.E., Huang, L., Abrajano, T., Jr., & Sturchio, N.C., (1999) Isotopic fractionation of carbon and chlorine by microbial degradation of dichloromethane
Organic Geochemistry Volume 30, No. 8

Dayan, H., Abrajano, T., Jr., Sturchio, N.C., & Winsor, L., (1999) Carbon isotopic fractionation during reductive dehalogenation of chlorinated ethenes by metallic iron
Organic Geochemistry Volume 30, No. 8

Aksu, A.E., Abrajano, T., Jr., Mudie, P.J., & Yaşar, D., (1999) Organic geochemical and palynological evidence for terrigenous origin of the organic matters in Aegean Sea sapropel S1
Marine Geology Volume 153, No. 1

Stehmeier, L.G., M. McD, M., Francis, T., Jack, R., Diegor, E., Winsor, L., & Abrajano, T.A., Jr., (1999) Field and in vitro evidence for in-situ bioremidiation using compound-specific 13C/12C ratio monitoring
Organic Geochemistry Volume 153, No. 1

Smirnov, A., Abrajano, T.A., Jr., Alex Smirnov, A., & Stark, A., (1998) Distribution and sources of polycylic aromatic hydrocarbons in the sediments of Lake Erie, Part 1.Spatial distribution, transport and deposition
Organic Geochemistry Volume 29, No. 5

Abrajano, T.A., Jr., Bieger, T., & Hellou, J., (1998) Responsive to comments of Grossi and de Leeuv
Organic Geochemistry Volume 28, No. 1

Bieger, T., Abrajano, T.A., Jr., & Hellou, J., (1997) Generation of biogenic hydrocarbons during a spring bloom in Newfoundland coastal (NW Atlantic) waters
Organic Geochemistry Volume 26, No. 3

Maowen Li, M., Riediger, C.L., Fowler, M.G., Snowdon, L.R., & Abrajano, T.A., Jr., (1996) Unusual polycyclic alkanes in Lower Cretaceous Ostracode sediments and related oils of the Western Canada Sedimentary Basin Organic Geochemistry Volume 25, No. 3

Fang, J., Abrajano, T.A., Jr., Comet, P.A., James M. Brooks, J.M., Sassen, R., & MacDonald, I.R., (1993) Gulf of Mexico hydrocarbon seep communities. XI. Carbon isotopic fractionation during fatty acid biosynthesis of seep organisms and its implication for chemosynthetic processes
Chemical Geology Volume 109, No. 1-4

Abrajano, T.A., Jr., (1990) Secondary Phase Formation during Nuclear Waste-Glass Dissolution
Clays and Clay Minerals Volume 38, No. 5

Holt, B.D., & Abrajano, T.A., Jr., (1991) Chemical and carbon isotopic alteration of organic matter during stepped combustion
Analytical Chemistry Volume 63, No. 24

Abrajano, T., Jr., Sturchio, N., Kennedy, B., Lyon, G., Muehlenbachs, K., & Bohlke, J., (1990) Geochemistry of reduced gas related to serpentinization of the Zambales ophiolite, Philippines
Applied Geochemistry Volume 5, No. 5-6

Killeen, T.L., & Abrajano, T.A., Jr., (2008) Understanding the Triple Point
Elements Volume 4, No. 5

Abrajano, T.A., Jr., (2007) Erratum to a gradual drowning of the southwestern Black Sea shelf: Evidence for a progressive rather than abrupt Holocene reconnection with the eastern Mediterranean Sea through the Marmara Sea Gateway
Quaternary International Volume 167-168

Abrajano, T.A., Jr., & Pasteris, J.D., (1989) Zambales ophiolite, Philippines
Contributions To Mineralogy and Petrology Volume 103, No. 1

Abrajano, T., Jr., Pasteris, J., & Bacuta, G., (1989) Zambales ophiolite, Philippines I. Geology and petrology of the critical zone of the Acoje massif
Tectonophysics Volume 168, No. 1-3

Abrajano, T., Jr., Sturchio, N., Bohlke, J., Lyon, G., Poreda, R., & Stevens, C., (1988) Methane-hydrogen gas seeps, Zambales Ophiolite, Philippines: Deep or shallow origin?
Chemical Geology Volume 71, No. 1-3

Parrish, C.C., Abrajano, T.A., Budge, S.M., Helleur, R.J., Hudson, E.D., Pulchan, K., & Ramos, C., (2000) Chapter 8. Lipid and Phenolic Biomarkers in Marine Ecosystems: Analysis and Applications
The Handbook of Environmental Chemistry Volume 5, No. Part D

O'Malley, V.P., Abrajano, T.A., & Hellou, J., (1994) Determination of the 13C12C ratios of individual PAH from environmental samples: can PAH sources be apportioned?
Organic Geochemistry Volume 21, No. 6-7

Yan, B., Abrajano, T.A., Jr., Bopp, R.F., Chaky, D.A., & Chillrud, S.N., (2010) Over one hundred years of contamination history reflected in urban lakes
Geochimica et Cosmochimica Acta Volume 74, No. 12

Sturchio, N.C., Clausen, J.L., Heraty, L.J., Huang, L., Holt, B.D., & Abrajano, T.A., Jr., (1998) Chlorine Isotope Investigation of Natural Attenuation of Trichloroethene in an Aerobic Aquifer
Environmental Science & Technology Volume 32, No. 20

Holt, B.D., Sturchio, N.C., Abrajano, T.A., Jr., & Heraty, L.J., (1997) Conversion of chlorinated volatile organic compounds to carbon dioxide and methyl chloride for isotopic analysis of carbon and chlorine
Analytical Chemistry Volume 69, No. 14

O'Malley, V.P., Abrajano, T.A., Jr., Helloe, J., (1996) Stable carbon isotopic apportionment of individual polycyclic aromatic hydrocarbons in St. John's Harbour, Newfoundland
Environmental Science & Technology Volume 30, No. 2

Todd, S., Ostrom, P., Lien, J., & Abrajano, T.A., Jr., (1997) Use of biopsy samples of humpback whale (Megaptera novaeangliae) skin for stable isotope (δ13C) determination
Journal of Northwest Atlantic Fishery Science Volume 22

Yan, B., Abrajano, T.A., Jr., Bopp, R.F., Chaky, D.A., Benedict, L.A., & Chillrud, S.N., (2005) Molecular tracers of saturated and polycyclic aromatic hydrocarbon inputs into Central Park Lake, New York City
Environmental Science & Technology Volume 39, No. 18

Abrajano, T.A., Jr., Bates, J.K., & Mazer, J.J., (1989) Aqueous corrosion of natural and nuclear waste glasses II. Mechanisms of vapor hydration of nuclear waste glasses
Journal of Non-Crystalline Solids Volume 108, No. 3

Lollar, B.S., Voglesonger, K., Lin, L.-H., Lacrampe-Couloume, G., Telling, J., Abrajano, T.A., Jr., Onstott, T.C., & Pratt, L.M., (2007) Hydrogeologic controls on episodic H2 release from Precambrian fractured rocks - energy for deep subsurface life on Earth and Mars
Astrobiology Volume 7, No. 6

Diegor, W., Longerich, H., Abrajano, T.A., Jr., & Horn, I., (2001) Applicability of a high pressure digestion technique to the analysis of sediment and soil samples by inductively coupled plasma-mass spectrometry
Analytica Chimica Acta Volume 431, No. 2

Bielger, T., Hellou, J., & Abrajano, T.A., Jr., (1999) Petroleum biomarkers as tracers of lubricating oil contamination
Marine Pollution Bulletin Volume 32, No. 3

Hiscott, R.N., Aksu, A.E., Mudie, P.J., Kaminski, M.A., Abrajano, T.A., Jr., Yaşar, D., & Rochon, A., (2007) The Marmara Sea Gateway since ~16 ky BP: non-catastrophic causes of paleoceanographic events in the Black Sea at 8.4 and 7.15 ky BP
The Black Sea Flood Question: Changes in Coastline, Climate, and Human Settlement

Pulchan, J., Abrajano, T.A., Jr., & Helleur, R., (1997) Characterization of tetramethylammonium hydroxide thermochemolysis products of near-shore marine sediments using gas chromatography / mass spectrometry and gas chromatography / combustion/isotope ratio mass spectrometry
Journal of Analytical and Applied Pyrolysis Volume 42, No. 2

Murphy, D.E., & Abrajano, T.A., Jr., (1994) Carbon isotope compositions of fatty acids in mussels from Newfoundland estuaries
Estuarine, Coastal and Shelf Science Volume 39, No. 3

Huang, Q., Jiang, H., Briggs, B.R., Wang, S., Hou, W., Li, G., Wu, G., Solis, R., Arcilla, C.A., Abrajano, T.A., Jr., & Dong, H., (2013) Archaeal and bacterial diversity in acidic to circumneutral hot springs in the Philippines
Federation of European Microbiological Societies Microbiology Ecology Volume 85, No. 3

Abrajano, T.A., Jr., Bates, J.K., & Byers, C.D., (1986) Aqueous corrosion of natural and nuclear waste glasses I. Comparative rates of hydration in liquid and vapor environments at elevated temperatures
Journal of Non-Crystalline Solids Volume 84, No. 1-3

Bates, J.K., Abrajano, T.A., Jr., Ebert, W.L., Mazer, J.J., & Gerding, T.J.,, (1988) Experimental hydration studies of natural and synthetic glasses
MRS Proceedings

Hellou, J., Upshall, C., Taylor, D., O'Keefe, P., O'Malley, V., & Abrajano, T.A., Jr., (1994) Unsaturated hydrocarbons in muscle and hepatopancreas of two crab species, Chionoecetes opilio and Hyas coarctatus
Marine Pollution Bulletin Volume 28, No. 8

Abrajano, T.A., Jr., Bates, J.K., & Bradley, J.P., (1989) Analytical electron microscopy of leached nuclear waste glasses
MRS Proceedings

Abrajano, T.A., Jr., & Lollar, B.S., (1999) Compound-specific isotope analysis: tracing organic contaminant sources and processes in geochemical systems
Organic Geochemistry Volume 30, No. 8A

Yan, B., Benedict, L.A., Chaky, D.A., Bopp, R.F., & Abrajano, T.A., Jr., (2004) Levels and patterns of PAH distribution in sediments of the New York/New Jersey harbor complex
Northeastern Geology and Environmental Sciences Volume 26, No. 1/2

Abrajano, T.A., Jr., & Bates, J.K., (1986) Transport and reaction kinetics at the glass: solution interface region: Results of repository-oriented leaching experiments
MRS Proceedings Volume 84

O'Malley, V.P., Stark, A., Abrajano, T.A., Jr., Hellou, J., & Winsor, L., (1996) Tracing polycyclic aromatic hydrocarbons in the environment using 13C/12C ratios
Polycyclic Aromatic Compounds Volume 9, No. 1-4

Sturchio, N.C., Abrajano, T.A., Jr., Murowchick, J.B., & Muehlenbachs, K., (1989) Serpentinization of the Acoje massif, Zambales ophiolite, Philippines: hydrogen and oxygen isotope geochemistry
Tectonophysics Volume 168, No. 1-3

Biwer, B.M., Bates, J.K., Abrajano, T.A., Jr., & Bradley, J.P., (1989) Comparison of the Layer Structure of Vapor Phase and Leached SRL Glass by Use of AEN
MRS Proceedings Volume 176

Hiscott, R.N., Aksu, A.E., Mudie, P.J., Marret, F., Abrajano, T.A., Jr., Kaminski, M.A., Evans, J., Çakiroglu, A.I., & Yaşar, D., (2010) Corrigendum to "A gradual drowning of the southwestern Black Sea shelf: Evidence for a progressive rather than abrupt Holocene reconnection with the eastern Mediterranean Sea through the Marmara Sea Gateway" [Quaternary International, 167-168 (2007) 19-34]
Quaternary International Volume 226

Dunn, D.S., Miller, M.A., Price, K.T., Pabalan, R., Abrajano, T.A., Jr., (2007) Development of a surface-enhanced Raman technique for biomarker studies on Mars
Applied Spectroscopy Volume 61, No. 1

Abrajano, T.A., Jr., Bates, J.K., & Bohlke, J.K., (1988) Linear free energy relationships in glass corrosion
MRS Proceedings Volume 123

Luo, J.S., Abrajano, T.A., Jr., & Ebert, W.L., (1998) Natural analogues of nuclear waste glass corrosion
US DOE Report ANL-98/22, Argonne National Laboratory, Argonne, IL

Bates, J.K., Abrajano, T.A., Jr., Wronkiewiez, D.J., Gerding, T.J., & Seils, C.A., (1990) Strategy for Experimental Validation of Waste Package Performance Assessment
Chemical Technology Division, Argonne National Laboratory

Yan, B., Bopp, R.F., Abrajano, T.A., Jr., Chaky, D., & Chillrud, S.N., (2014) Source apportionment of polycyclic aromatic hydrocarbons (PAHs) into central park lake, new york city, over a century of deposition
Environmental Toxicology and Chemistry Volume 33, No. 5

Clausen, J.L., Sturchio, N.C., Heraty, L.J., Huang, L., & Abrajano, T.A., Jr., (1997) Evaluation of natural attenuation processes for trichloroethylene and technetium-99 in the northeast and northwest plumes at the Paducah Gaseous Diffusion Plant, Paducah, Kentucky
Environmental Management and Enrichment Facilities, U.S. Department of Energy

Abrajano, T.A., Jr., Bates, J.K., Gerding, T.J., & Ebert, W.L., (1988) Reaction of Glass During Gamma Irradiation in a Saturated Tuff Environment: Part 3. Long-term Experiments at 1 X 104 Rad/hour
Chemical Technology Division, Argonne National Laboratory

Langdon, G.S., & Abrajano, T., Jr., (1994) Geochemical correlation study of degraded oils and rocky brook source rocks, Deer Lake Basin
Centre for Earth Resources Research, Department of Earth Sciences, Memorial University of Newfoundland

Ebert, W.L., Bates, J.K., Abrajano, T.A., Jr., & Gerding, T.J., (1989) The influence of penetrating gamma radiation on the reaction of simulated nuclear waste glass in tuff groundwater
Chemical Technology Division, Argonne National Laboratory

Abrajano, T.A., Jr., Bates, J., Ebert, W., & Gerding, T., (1986) The Effect of Gamma Radiation on Groundwater Chemistry and Glass Leaching as Related to the NNWSI Repository Site
Chemical Technology Division, Argonne National Laboratory

Pelayo, A.M., & Abrajano, T.A., Jr., (1998) Understanding generic soil cleanup levels: Implication on agricultural chemicals
Journal of Soil Contamination Volume 7, No. 3

Abrajano, T.A., Jr., Holt, B.D., & Dyrkacz, G.R., (1991) Stable isotope geochemistry of organic matter alteration in Animikie Basin sediments within the thermal aureole of the Duluth Complex
Organic Geochemistry Volume 17, No. 4

Stevenson, M.C., Bates, J.K., Abrajano, T.A., Jr., & Scheetz, B.E., (1989) Obsidian and Basaltic Glass Dating Require Significant Revision of High Temperature Rate Development Methods
Society for Archaeological Sciences Bulletin Volume 12

Yan, B., Abrajano, T., Jr., Newville, M., Sutton, S., Sturchio, N.C., & Ehrlich, I.I., (2004) Anaerobic bacterial reduction of ferric iron in pisolites
In: Wanty RB, Seal, RR II, eds. Water-Rock Interaction: 11th International Symposium on Water-Rock Interaction, Vol. 2, Leiden, Netherlands: AA Balkema Publishers

Abrajano, T.A., Jr., Stark, A., Smith, J., & Hellou, J., (2002) Molecular and carbon isotopic characterization of polycyclic aromatic hydrocarbon distribution in mussels and associated sediments from the Massena-Cornwall area, St. Lawrence River
Geochimica et Cosmochimica Acta Volume 66, No. 15A

Huang, L., Sturchio, N., Heraty, L., & Abrajano, T.A., Jr., (1998) Chlorine and carbon isotopic fractionations of aliphatic hydrocarbons in evaporation process: Implications for biodegradation
Chinese Science Bulletin Volume 43

O'Malley, V.P., Abrajano, T.A., Jr., & Hellou, J., (1993) A novel approach to apportioning polycyclic aromatic hydrocarbon sources in estuarine environments
Joint CSCE-ASCE National Conference on Environmental Engineering

Abrajano, T.A., Jr., Fang, J., Comet, P.A., & Brooks, J., (1992) Compound-Specific Carbon Isotope Analysis of Fatty-Acids
Symposium on Compound Specific Isotope Analysis in Organic and Petroleum Geochemistry. American Chemical Societ, National Meeting, San Francisco, California

Abrajano, T.A., Jr., Murphy, D., Fang, J., & Comet, P.A., (1993) Compound-specific carbon isotope analysis of fatty acids in benthic organisms
In: M. Schoell and J.M. Hayes (Editors), Compound-specific Isotope Analysis in Biogeochemistry and Petroleum Research

Papers Presented

Stable isotope diagnostics of chlorinated solvent behavior in contaminated aquifers, 2nd International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, CA

Carbon-Isotopic Biogeochemistry of Aerobic Biodegradation of Aromatic Hydrocarbons, Ninth Annual V.M. Goldschmidt Conference

History of polycyclic aromatic hydrocarbon (PAH) deposition in the New York Harbor, Northeastern Section - 37th Annual Meeting

Stable Isotopic Investigations of the Chlorinated Aliphatic Hydrocarbons, Ninth Annual V.M. Goldschmidt Conference

Scientific basis for nuclear waste management XIV, International Symposium on the Scientific Basis for Nuclear Waste Management 1990: Boston, Mass., Materials Research Society

Over a century of PAH contamination history to New York City, 2015 American Geophysical Union Fall Meeting

Awards

Balik Scientist Award, Department of Science and Technology, 2010