The people of MARSSAM are seagoing oceanographers and marine geologists. Our group has many decades of seagoing experience and our managers have all been principal investigators on their own coring cruises. The goal of our structure is to help you get the most productive use of your at-sea time. The following researchers and technicians manage our facility and make sure the cruises we support are successful.



Dr. Mitch Lyle

Dr. Chris Goldfinger 

Dr. Maureen Walczak

Advisory Panel:

Dr. Joseph Stoner

Dr. Alan Mix

Dr. Nick Pisias

Dr. Jeffrey Donnelly

Maziet Cheseby

Pete Kalk

Seagoing Technicians:

Paul Walczak

Lead coring technician for MARSSAM, with 15+ years of seagoing experience collecting all manner of marine geology samples in support of 50+ expeditions aboard 15+ UNOLS and international vessels. Resident master of the ratchet strap.

Chris Moser

Semi-retired former lead coring technician for MARSSAM, has worked with the facility for nearly 40 years. Among the most experienced coring techs still sailing on UNOLS vessels, his always sunny disposition is further improved by gifts of candy and/or hot cocoa.

Dale Hubbard

Part-time MARSSAM coring technician for nearly 20 years. Expertise in complex multi-disciplinary expeditions and jumbo piston coring. Has sailed in support of marine geology in every ocean, and has witnessed more than he ever wanted to.

Chris Fanshier

Our newest team member joined MARSSAM in 2019. Chris has a diverse background in both geology and oceanography, and has already demonstrated a high level of capability on deck. Also his spirit hasn’t been broken yet.

Ben Freiberg

Ben completed a Master’s degree in Geology and Geophysics at OSU, studying marine sediments. After finishing school, Ben stayed at OSU to work for MARSSAM and PacWave as a coring/mooring technician.

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