Brett Walker, Graduate Student Researcher

B.S. Earth Science, UCSC

Development of Ultrafiltration Field Instrumentation/Techniques.  Isolation, Isotopic composition, Radiocarbon of oceanic and hydrothermal UDOM, POM.

UCSC Senior Thesis with the Earth Science Dept.

   Using ¹⁴C of  inorganic carbon in crustal fluids from drill-holes and seamounts on the Juan de Fuca ridge system to constrain fluid flow rates and paths through porous upper curst. (Jointly advised with Andy Fisher)

Ian Voparil, PostDoc

  PhD, Oceanography

Relative sources and cycling of major compound classes in dissolved organic matter in oceanic and crustal fluid DOM.  In particular isolation and multi-isotopic measurement approach ( ¹⁴C,¹³C,¹⁵N) of major amino acids and other biochemical classes in different systems. 

Ian has recently accepted a position with Shell Oil as a head marine environmental consultant.  (We wish you the best Ian!) 

Petra Dekens, PhD Student

MS Oceanography & Ocean Policy

Paleooceanography.  Constructing long-term paleo-temperature records of Eastern Pacific using Alkenone unsaturation index (UK37).  (Joint student with Christina Ravelo).

"I just LOVE chromatography!!!

Leslie Roland, Graduate Student Researcher

B.S. Earth System Science, UCI

Molecular composition and cycling of major compound classes of particulate organic matter (POM) within anoxic ocean basins (Cariaco, Venezuela and Santa Barbara, USA).

Jenny Lehman, Undergraduate Researcher

  UCSC Senior Thesis with the Biochemistry Dept.

¹³C and ¹⁵N isotopic composition of individual amino acids within UPOM via GC/IR-MS as evidence for mesopelagic chemosynthetic archea in the south pacific.