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Juan Carlos Silva-Tamayo

Silva-Tamayo Juan Carlos Tropical Carbonates Ocean Acidification
Title:Postdoctoral Scholar
Primary Affiliation:Department of Geological & Environmental Sciences
Other Affiliations:GES, University of Leeds Department of Earth and Environment Universidad de Caldas Assistant Professor Manizales, Colombia Corporacion Geologica Ares Bogota, Colombia
Office Location:Green Building 223
Research Group:Paleobiology
Research Lab:Stanford ICP-MS/TIMS Facility
Alternative Website:http://www.carbonateresearchgroup.org/
E-mail:cuore@stanford.edu

Biographical Information

- EDUCATION:

 

1993 to 1999 EAFIT University

Medellin, Colombia

Bachelor of Sciences in Geology

B.A. Thesis: Sequence stratigraphy and petrography of the Upper Amaga Member of the Coal Amaga Formation-Antioquia. 1998-1999

Colombian Professional Geologist license: 1873

 

2002-2004 Federal University of Pernambuco

Recife, Brazil

MSc Sedimentary and environmental geology

GPA: A

Dissertation:  C, O- and Sr-isotope stratigraphy of the Sao Caetano Complex, Borborema Structural Province, NE Brazil.

 

2005- 2009 Universitat Bern

Bern, Switzerland

PhD Isotope geochemistry

Dissertation: Major variations in the global biogeochemical cycles in the aftermath of the Neoproterozoic glaciation: a multi-proxy approach.


Research

I am currently interested on the use of non-traditional stable isotopes  (Mo, Ca, U, B) as tracers of biogeoenvironmental conditions during past periods of ocean acidification and deoxygenation. I am particularly interested on periods of high pCO2 (i.e. Late Proterozoic Snowball intervals, Permian-Triassic Transition, Cretaceous OAEs, Cenozoic greenhouse periods).

 

I am also a carbonate sedimentologist. I am currently applying high-resolution sequence stratigraphy, C, O, Sr isotope stratigraphy and U-Pb dating of carbonates to construct 4D high resolution depositional models of tropical Cenozoic carbonate successions in ocean-continent convergent margins (i.e the southern Circum Caribbean). This research aims on reducing the uncertainty during Oil and Gas exploration and to increase the rate of success during the search of economic O&G reservoirs.

 

I am also currently using high resolution U-Th dating and C and O isotope geochemistry on tropical speleothems (Colombia-Panama). The close work with archeologist will help to understand the relationship between climate and human occupation. 

 

Teaching

Carbonate sedimentology and stratigraphy

Stable isotope geochemistry

Colombian Geology

Professional Activities

 

- WORK EXPERIENCE

  

 Research experience

 

2004-2005 Research Associate. Internship on carbonate sedimentology and geochemistry, University of Tennessee, Knoxville, USA. Use of geochemical indicators in carbonates (i.e. “CAS” S-, C-, O- stable isotopes, minor, major and trace element) to determine biospheric oxygenation levels in ancient oceans. Modeling of global biogeochemical is performed by using multi-pronged analyses of redox sensitive elements in carbonates and black shales.

 

2011 to present:  Postdoctoral Fellow (Smithsonian Tropical Research Institute, Panama). Stratigraphic and precise dating (using carbonate U-Pb geochronology and Sr, C and O isotope stratigraphy) of Caribbean carbonates along the SE Circum-Caribbean.

 

2011 to present: Marie Curie Postdoctoral Fellow. Investigating the effects of past ocean acidification using multy isotope proxies (Ca, Mg, U, Mo, S).

 

 

Oil and Gas Industrial Consultancy

 

2010-2011. Consultancy. Stratigraphy and carbonate characterization (using Petrography, CL, elemental and isotope geochemistry) of potential carbonate reservoirs along the San Jacinto frontier basin, NW Colombia and the Colombian Pacific. Colombian National Agency of Hydrocarbons-Universidad de Caldas Consortium.

 

2010-2011 Consultancy.  Stratigraphy and carbonate characterization of (using Petrography, CL, elemental and isotope geochemistry, carbonate U-Pb dating) Cenozoic carbonate successions along La Guajira Peninsula, Colombia and Panama. Colombian Petroleum Company (ECOPETROL)

 

2011-2012 Consultancy. Carbonate sequence stratigraphy and reservoir characterization of Cretaceous carbonates along the Cesar Rancheria Basin, northern Colombia. Petrobras, Pacific Rubiales, Colombian Petroleum Company (ECOPETROL)

 

2012 Consultancy.  Stratigraphy and carbonate characterization of (using Petrography, CL, elemental and isotope geochemistry, carbonate U-Pb dating) Cenozoic carbonate successions along La Guajira Peninsula, Colombia and Panama. Petrobras, Repsol, Colombian Petroleum Company (ECOPETROL)


 

Education

    1993 to 1999 EAFIT University Medellin, Colombia Bachelor of Sciences in Geology B.A. Thesis: Sequence stratigraphy and petrography of the Upper Amaga Member of the Coal Amaga Formation-Antioquia. 1998-1999 Colombian Professional Geologist license: 1873   2002-2004 Federal University of Pernambuco Recife, Brazil MSc Sedimentary and environmental geology GPA: A Dissertation:  C, O- and Sr-isotope stratigraphy of the Sao Caetano Complex, Borborema Structural Province, NE Brazil.   2005- 2009 Universitat Bern Bern, Switzerland PhD Isotope geochemistry Dissertation: Major variations in the global biogeochemical cycles in the aftermath of the Neoproterozoic glaciation: a multi-proxy approach. 

Professional Experience

     Research experience

      2004-2005 Research Associate. Internship on carbonate sedimentology and geochemistry, University of Tennessee, Knoxville, USA. Use of geochemical indicators in carbonates (i.e. “CAS” S-, C-, O- stable isotopes, minor, major and trace element) to determine biospheric oxygenation levels in ancient oceans. Modeling of global biogeochemical is performed by using multi-pronged analyses of redox sensitive elements in carbonates and black shales.   2011 to present:  Postdoctoral Fellow (Smithsonian Tropical Research Institute, Panama). Stratigraphic and precise dating (using carbonate U-Pb geochronology and Sr, C and O isotope stratigraphy) of Caribbean carbonates along the SE Circum-Caribbean.   2011 to present: Marie Curie Postdoctoral Fellow. Investigating the effects of past ocean acidification using multy isotope proxies (Ca, Mg, U, Mo, S).  2012 to present: Paleogeography and Tectonostratigraphic evolution of northern South America and the Circum Pacific (Sponsored by Ecopetro, Petrobras, Repsol, Chevron)    Oil and Gas Industrial Consultancy   2010-2011. Consultancy. Stratigraphy and carbonate characterization (using Petrography, CL, elemental and isotope geochemistry) of potential carbonate reservoirs along the San Jacinto frontier basin, NW Colombia and the Colombian Pacific. Colombian National Agency of Hydrocarbons-Universidad de Caldas Consortium.   2010-2011 Consultancy.  Stratigraphy and carbonate characterization of (using Petrography, CL, elemental and isotope geochemistry, carbonate U-Pb dating) Cenozoic carbonate successions along La Guajira Peninsula, Colombia and Panama. Colombian Petroleum Company (ECOPETROL)   2011-2012 Consultancy. Carbonate sequence stratigraphy and reservoir characterization of Cretaceous carbonates along the Cesar Rancheria Basin, northern Colombia. Petrobras, Pacific Rubiales, Colombian Petroleum Company (ECOPETROL)   2012 Consultancy.  Stratigraphy and carbonate characterization of (using Petrography, CL, elemental and isotope geochemistry, carbonate U-Pb dating) Cenozoic carbonate successions along La Guajira Peninsula, Colombia and Panama. Petrobras, Repsol, Colombian Petroleum Company (ECOPETROL) 

University Service

    -AWARDS AND GRANTS   2002-2004. Colombian Agency for the Advance of Culture and Science, COLFUTURO Research grant. Project: Stable isotope stratigraphy as a correlation tool of Mesoproterozoic Carbonate sequences. Grant amount US$ 50.000   2004.  University of Tennessee Travel Grant. Grant amount US$ 1000   2005-2008 Universidad de Berna. PhD scholarship. Project: Mo and Ca-isotopes in carbonates.   2005-2006. Sigma-Xi research grant. Project: Modeling changes in global oxygenation  levels during the lower Paleozoic explosion of animal life. Grant amount US$ 1000    2006-2008. Society of paleontologist and sedimentologists (SEPM) research grant. project: investigating changes in global oxygenation levels during the Ediacaran. Grant amount US$ 1.500   2006-2008. Geological Society of America (GSA) research grant. Major fluctuation in global biogechemical cycles associated to the Neoproterozoic global glaciations. Grant amount US$ 1.500   2008   Honor and Merit to the best graduate student in Geology Universidade Federal de Pernambuco   2011  Marie Curie IOF program grant (European Union). Investigating the effects of past and recent ocean acidification using multi-proxy geochemical indicators. 400.000.   2011 UNESCO Man and Biosphere grant program. An Holocene paleoclimatic reconstruction of the northwest of Latin America: a multiproxy and multiscale approach.   US$ 5000     2012-2016 Colombian National Science foundation COLCIENCIAS. Development of predictive models for the identification of oil and gas source rocks at tropical paleolatitudes, a multi-proxy approach (US$ 4.000.000).  This Includes the set-up of a Organic isotope geochemistry laboratory at the Universidad de Caldas  

Professional Activities

    Consultant. Carbonate Reservoir 4D characterization (Ecopetrol, Repsol, Petrobras, Chevron)

Publications

    - Sierra, G., Silva-Tamayo, J. y Correa, L., 2004. Estratigrafía Secuencial de la Formación Amaga. Bol. Cien. Tierra, v. 15, pp. 9-22. - Marques, W., Silva-Tamayo, J.C., Sial, A.N., Menor, A., 2004, Análises de δ13C e δ18O em foraminíferos da margem continental do Nordeste Brasileiro entre os estados do Ceará e Pernambuco. Boletim de Geologia UFC, v. 30, pp. 1-25. - Silva-Tamayo, J.C., Sial, A.N., Ferreira, V.P., Pimentel, M.M., 2005, C- and Sr- isotope stratigraphy of the São Caetano Complex, northeastern Brazil: a Contribution to the study of the Meso-Neoproterozoic seawater geochemistry. Brazilian Academy of  Science, pp. 137-155. - Silva-Tamayo, J.C., Sierra, G.M., Correa, L.G., 2008. Tectonic and climate driven fluctuations in the stratigraphic base level of a Cenozoic continental coal basin, northwestern Andes, Journal of South American Earth Sciences. Elsevier. - Silva-Tamayo, J.C.,  Nägler,  T.F., Villa, I.M., Kyser, K., Vieira, L.C., Sial, A.N.,  Narbonne, G.M., and James, N.P. Global Ca isotope variations in Post-Sturtian carbonate successions (Terra Nova, accepted). - Silva-Tamayo, J.C., Nägler, T.F., Nogueira, A., Kyser, K., Villa Igor, Riccomini, C., Sial., A.N., Narbonne, G.M., James, N.P.  Global perturbation of the marine Ca-isotopic composition in the aftermath of the Marinoan global glaciation (Precambrian Research, accepted) 

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