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Dr. Karina Zavala

Telefon: 

+49 421 218-65945

E-Mail:

Raum: 

MARUM I, 1210

Karina Zavala

Research interests

  • Geochronology- U-Pb dating 
  • Marine Geology-Volcanology
  • Hydrothermal systems
  • Geochemistry of marine sediments

Experience

2017- present: Postdoctoral Fellow at MARUM, University of Bremen.

U-Pb dating of carbonate veins in Cretaceous to Neogene oceanic crust.


2014-2015: Visiting researcher at MARUM in collaboration with Goethe University Frankfurt.

Development and application of U-Pb in situ laser ablation ICP-MS dating to carbonate veins.


2012-2014: Postdoctoral Fellow at the Geology Department, Memorial University, Newfoundland.

U-Pb in situ laser ablation ICP-MS dating of zircons, monazites and titanites in pegmatites from the Grenville Province, Canada.


2008-2012: Research Laboratory Associate at Bruneau Centre for Research and Innovation at Memorial University, Newfoundland.

Characterization of the Voisey's Bay Ni-Cu-S ore deposit in Labrador using the Datamine software and Pearce Element Ratios.


2006-2008: Postdoctoral Fellow at the Geology Department, Memorial University, Newfoundland.

Designed and developed fluid dynamic experiments to investigate the transport  characteristics of sulfide segregations in the Voisey's Bay ore deposit.


2001-2005: Research Assistant Fellow at the Geology Department at John's Hopkins University, Maryland. 

Study the geochemical evolution of silicic segregations in the Ferrar Dolerite Sills, Antarctica.


1998: Summer Student Fellow at the Department of Terrestrial Magnetism, Carnegie Institution of Washington, DC.

Study Boron content and boron isotopic composition of Mid-Oceanic Ridge Basalt glasses from the East Pacific Rise 15-17°N.


1997: Summer Student Fellow at Woods Hole Oceanographic Institution, Woods Hole MA.

Study the petrology, structure and morphological relationships between Intra-Transform Spreading Centeres at the Siqueiros Transorm Fault, East Pacific Rise. 

 


Expeditions

*2003: Austral summer season in the Dry Valley Region, Antarctica mapping and sampling silicic segregations in the Ferrar Dolerite Sills, through the United States Antarctic Program.

 

*2001: Austral summer season in the Dry Valley Region, Antarctica mapping and sampling  the Ferrar Dolerite Sills and the Dais intrusion, through the United States Antarctic Program. 

 

*1997: Research Assistant at Lamont Doherty Earth Observatory of Columbia University, New York. Worked aboard the RV/ Melville during Panorama Leg 1 to East Pacific Rise to investigate hydrothermal plume signals, using the Miniature Autonomous Plume Recorder (MAPR) to collect nephalometry, temperature and density data in the water column.

 

*1996: Research Assistant at Woods Hole Oceanographic Institution, Woods Hole MA. Worked aboard the R/V Knorr to the Lucky Strike, Mid Atlantic Ridge to investigate correlations between magnetic anomalies and hydrothermal vent activity using on board magnetometer data.

 

Education

  • Doctorate in the Department of Geology at John's Hopkins University, Baltimore MD.

Doctoral Thesis: Differentiation of Silicic Segregations in the Ferrar Dolerite Sills,  Antarctica: A Geochemical Study

  • Master of Science in the department of Geology at John's Hopking Univeristy, Baltimore MD.
  • Bachelor of Science at Northern Arizona University, Flagstaff, AZ.

         Major: Geology  Minor: French

Publications

Journals

  • Zavala, K., Leitch, A, M., & Fisher, G.W. (2007) Silicic Segregations of the Ferrar Dolerite sills, Antarctica. Journal of Petrology doi:10.1093/petrology/egr035
  • Baker, E., Cormier, M., Langmuir, C., and Zavala, K., 2001 Hydrothermal plumes along segments of contrasting magmatic influence, 15°-20'-18° 30' N, East Pacific Rise: Influence of axial faulting, Geochemistry, Geophysics, Geosystems doi: 10.1029/2000GC000165

 

Conferences 

  • Zavala, K., Gerdes, A., Bach, W., Kasemann, S.A. U-Pb Dating of Carbonate Veins in Cretaceous to Neogene Oceanic Crust. Goldschmidt Abstracts, 2019 3892.
  • Zavala, K., and Leitch, A. M., Formation of Silicic Segregations of the Ferrar Dolerite Sills, Antarctica. Geological Association of Canada Abstract, 2008 
  • Zavala, K., and Fisher, G.W., Using MELTS and Least Squares Methods to Evaluate Differentiation in the Ferrar Dolerite Sills Antarctica. Geological Association of Canada Abstract, 2008
  • Zavala, K., Fisher, G.W. and Leitch, A. M. Analysis of Silic Segregations in the Ferrar Dolerite Sills using MELTS-SVD and Fluid Dynamic Experiments. EOS Transactions American Geophysical Union, Abstract 2006 V.87 N.36, V41A-24.