Charlie Paull has been a marine geologist and geochemical stratigrapher at MBARI since January 1999. The central theme of Charlie's work involves investigating the fluxes of fluids and gases through continental margins. Over the past decade his primary focus has been gas hydrate research on the Blake Ridge gas hydrate field on the continental rise off of southeastern North America. Assessing the global distribution of gas hydrate and interstitial gas is a continuing interest as well as the development of new techniques to detect the presence of gas hydrate in marine sediments. Charlie's other ongoing work is focused on the geology associated with seafloor seepage sites, including investigating the deposits associated with chemosynthetic communities, determining the processes that occur at the methane-sulfate boundary, and understanding the origin of pockmarks and other potential seafloor fluid venting sites.
Ken's research interests are focused on the development of new analytical methods for chemicals in seawater and application of these tools to studies of chemical cycling throughout the ocean. Over the past 15 years, Ken's Chemical Sensor Program at MBARI has developed a variety of sensors and analyzers that operate in situ to depths of 4,000 meters. These instruments have been used to study processes ranging from the distribution of sulfide in deep-sea hydrothermal vent systems, to nitrate in coastal ponds surrounded by intensive agricultural activities.
Krystle Anderson is a research technician working for Charlie Paull in the Continental Margins Lab. Krystle's background is primarily in the acquisition and processing of seafloor mapping data. She came from the California State University, Monterey Bay Seafloor Mapping Lab where she obtained her data processing and Geographic Information System (GIS) skills. Krystle spends a majority of her time processing and creating high-resolution maps of multibeam data collected from the mapping AUV. The high-resolution maps Krystle helps create will then be used to aid navigation for the ROV to explore particular areas of interest. On this expedition Krystle will assist with running the GIS system, and processing and cataloguing sediment samples and vibracores. This is Krystle's second research expedition with MBARI and she is very excited to be involved in this expedition.
Roberto is a geochemist by training. His interests lie at the intersection of marine geology and sediment and water chemistry. During cruises Roberto operates a custom-built, portable chemistry lab that includes a complete set of analytical platforms for measurements of fluids and gases. On this expedition, Roberto will be responsible for analytical measurements of pore water chemistry on samples taken from sediment cores. He will also be in charge of collecting gas samples emanating from fluid vents and performing hydrocarbon analyses on dissolved gases collected from pore waters, from gas vents and from seawater.
Eve Lundsten works with Charlie Paull in the Continental Margins Lab. Eve's background is in hydrology but she uses her technical and mapping skills to help understand the processes that create the morphology we see on the seafloor. The Continental Margins Lab uses high-resolution, AUV-collected bathymetric maps to help direct research to the precise location of interest on the seafloor where samples can be collected for further analysis. Eve's responsibilities on this cruise include running the GIS mapping system, assisting with the processing of vibracores, and push cores collected on ROV dives, and documentation of the many samples collected during this leg of the cruise. Eve is very excited to participate in this cruise and is looking forward to many exciting discoveries.
Shannon is a molecular ecologist. This means she uses genetics to solve mysteries about how invertebrates like worms, snails, mussels and clams, who live at hydrothermal vents, cold seeps, wood, and whale falls move around in the deep sea. These environments act like islands in the ocean because most of the animals that inhabit these environments depend on chemosynthetic bacteria for food. The reducing environments provide mineral-rich water that feed the bacteria, creating an abundance of life. On the cruise, Shannon will be responsible for collecting, identifying, and dissecting invertebrates as well as filtering water to study their larvae.
Susan von Thun
Senior Research Technician
Susan works in the video lab at MBARI, where she is a senior research technician. Her primary role at MBARI is to help manage and annotate the remotely operated vehicle (ROV) video archive. Observations about the biology, geology, and equipment in ROV videos are logged using software designed by MBARI engineers called the Video Annotation and Reference System (VARS). On this expedition, Susan will use VARS to annotate and document video coming back to the ship from ROV Doc Ricketts. As one of the few biologists on this leg of the expedition, Susan will be busy identifying and processing biological samples.
Teresa has worked as a Logistics Specialist in the Division of Marine Operations at MBARI for 12 years. She has spent much of the past year planning and preparing for this expedition, including obtaining scientific permits from the Mexican government, scheduling the science missions and port stops, arranging for services during port stops, and arranging visas for the scientists. During this expedition Teresa will help process samples collected with the ROV, assist in the ROV control room with video tapes and frame grabs, and other science tasks. Teresa is very excited to sail as a member of the science team and will no doubt learn a lot from both marine operations and science perspectives.
U.S. Geological Survey
Pacific Coastal and Marine Science Center
Brian specializes in sedimentary processes and stratigraphy, integrating insights gleaned from seafloor rock and sediment samples with information from remote-mapping products, such as close-up photographs of the seafloor, high-resolution bathymetric maps, and seismic-reflection profiles. His recent studies have focused on how sediment moves from the land to the deep sea, processes controlling submarine landslides, saltwater intrusion into coastal aquifer systems, marine pollution, seafloor habitats, and the Cenozoic history of the Arctic Ocean.
Juan Carlos Herguera
Juan Carlos is interested in the history of past oceans, how changes in climate and ocean circulation contribute to the ecology and biogeochemical cycling sustained by coastal environments in the California Current and the Gulf of California regions. During this cruise he will be involved in sampling benthic foraminifera to help characterize their genomic information, and, through their stable isotopic and metal compositions, to understand how these geochemical markers reflect their ambient conditions. He will further use planktonic foraminifera for dating the deep-sea cores with radiocarbon techniques, which hold important clues on the tectonic rupturing rhythm along the boundary between the North American and Pacific plates. He is fascinated by these new observation windows opened up by the ROV deployed from the Western Flyer, making possible the discovery of new vent environments along these fractured boundaries and the chemosynthetic oasis sustained by these leaky enclaves that connect the deep ocean with the lower crust and mantle dynamics.
Research Geologist (Micropaleontology/Biology)
U.S. Geological Survey
Pacific Coastal and Marine Science Center
Mary's interests focus on using microbiota (primarily foraminifera but also pollen) to investigate marine sediment transport, geohazards (faulting, landslides and paleotsunamis), climate change, and the pathways and impact of invasive species introductions using sediment records and molecular analysis techniques. She also uses foraminifera in biomonitoring marine pollution sites and carbon-14 chronostratigraphy—the study of the age of rock layers in relation to time.
Luis Arturo Terán Ortega
Manager of Regional Exploration
Mexican Geological Service
As a member of the Mexican Geological Survey (SGM), Luis has conducted extensive geological research and prospective surveying mining studies focused on detecting resources with potential economic value. In 2007, the Mexican government commissioned the Mexican Geological Survey to conduct prospective efforts over the entire Mexican territory and adjacent sea to identify potential energy resources such as gas, coal, uranium, and other strategic minerals. Luis is the Manager of Regional Exploration of SGM and his prospective studies encompass Sonora, the Gulf of California, the Baja California peninsula, and the territorial Sea in the Pacific Ocean. This is his first experience on a research cruise and he hopes to gain a better understanding of the richness of the Gulf of California environment from a geologic, biologic, and mineral resources perspective. Luis is very eager to learn from and collaborate with his peers from MBARI.