GET STARTED
1
Request Info
2
Visit
3
Apply
GET STARTED
1
Request Info
2
Visit
3
Apply
Dr. Close instructs undergraduate student Nicola Paul on operation of the GC-IRMS
Lipid extracts from a depth profile at Station ALOHA
Dr. Close deploying in situ pumps in the North Pacific
Dr. Close and Ph.D. student Shannon Doherty deploying in situ pumps in Monterey Bay
Lipid extracts from the Eastern Tropical North Pacific
R/V Knorr docked in Barbados on one of its last voyages in 2013 (Deep DOM cruise)
Sunset over the Eastern Tropical North Pacific
Installation of the magnet on the MAT 253 isotope ratio mass spectrometer
Group Photo, 2019-2020 Group Photo, 2019-2020
Close Lab group, 2019-2020
Close Lab group, 2017-2018

Marine Organic and Isotope Geochemistry

The Close Lab specializes in particle sampling, purification of organic compound classes, and compound-specific isotope analysis in order to constrain how organic matter is produced, degraded, and physically distributed in marine environments. The lab includes equipment for the extraction and purification of lipids, amino acids, and other compound classes and instrumentation for compound identification (GC-MS), bulk stable isotope analysis (EA-IRMS), and compound-specific isotope analysis of lipids and amino acids (GC-IRMS). Research opportunities for undergraduate students are always available.

News and updates

 

August 2019: We are excited to welcome two new Ph.D. students to the lab! Look out for great things from Lillian Henderson and Paul Wojtal.

Dr. Close presented at the 2019 Goldschmidt meeting in Barcelona. See the abstract here.


July 2019: Dr. Close participated in her second summer research cruise with the BIOS-SCOPE collaboration, sampling large-volume, size-fractionated particles from the oligotrophic North Atlantic. Collaborators investigating microbial and metabolomic properties of these particle samples include Dr. Craig Carlson (UCSB) and Dr. Liz Kujawinski (WHOI).


June 2019: This month we welcome summer undergraduate researcher Sophia Schiaroli from Franklin and Marshall College. She is joining MGS Ph.D. student Evan Moore in extracting organic biomarkers from shallow-water carbonate rocks. At the same time, we bid a fond farewell to research assistant Nicola Paul, who has been the master of many lab techniques in her two years with our group. We wish her great success in her new position as Ph.D. student in the Santoro Lab at UCSB.


May 2019: Shannon joined a research cruise to the BATS (oligotrophic North Atlantic) site with our EXPORTS collaborator Dr. Amy Maas (BIOS) to collect particles, zooplankton, and fecal pellets.


April 2019: Via our partnership with the U.S. Geological Survey, we are excited to obtain samples from the water column and seafloor around a deep-sea coral habitat on the U.S. mid-Atlantic margin. See more about the multi-agency research happening this April on board the Ronald H. Brown here.


February 2019: Dr. Close presented at the ASLO meeting in San Juan, Puerto Rico on our work with the U.S. Geological Survey at methane seeps in the mid-Atlantic.


September 2018: The Close Lab has joined the EXPORTS team! We are grateful to our collaborators for collecting samples in the subarctic Pacific, onboard the R/V Roger Revelle and R/V Sally Ride in August-September, 2018. See our NSF project description here.


August 2018:

Shannon collected particle samples along a transect in the North Pacific onboard the R/V Oceanus in August, 2018, alongside other RSMAS researchers and alumni.

Dr. Close presented at Goldschmidt 2018 in Boston. See the abstract here.