2018 Expedition

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Submerged Shorelines of California Borderland

Nov 3, 2018 to Nov 14, 2018

The primary focus of this expedition is the identification and characterization of submerged shorelines associated with offshore banks in the southern California Borderland region. This is a continuation of the effort by Nautilus over the last four years to acquire high-resolution mapping data of submerged shorelines and characterize primarily with remotely operated vehicles. This year’s expedition will focus on offshore banks, as those do not receive sediment from land which obscures shoreline features like caves from view.

Within the California Borderland, the Channel Islands region has a complex geologic history, starting with a fiery formation by submarine volcanism 19-15 million years ago and subsequent millions of years of movement. While the foundations were shifting, changing uplift rates and glacial cycles also resulted in fluctuating sea levels eroding away the islands, leaving strands of sedimentary rocks both above and below the current sea level as evidence of ancient paleoshorelines.

This expedition will aid in understanding the complex sea level change and tectonic history of the Northern Channel Islands. Visual exploration of sub-surface marine terraces and targeted sampling may help identify the age of paleoshorelines, determine vertical uplift rates, and improve both local tectonic and sea level models. In addition, the bathymetric and backscatter maps and benthic characterization using ROVs provides information that will help inform resource protection issues including incident response and restoration, protected resource and fisheries management, navigational safety, and conservation.

Meet the Team

Photo of Roland Arsenault
Science/Data Team
Photo of Dwight Coleman
Expedition Leader
Photo of Bryce Corbett
Science/Data Team
Photo of Christian Daniell
Science/Data Team
Photo of Jeff Dennerline
Video Engineer
Photo of Mark DeRoche
Deck Chief
Photo of Petra Elfstrom
Science/Data Team
Photo of Taylor Ely
Ocean Science Intern
Photo of KG Fairbarn
Science/Data Team
Photo of Summer Farrell
Argus Pilot
Photo of Kelly Ferron
Science Communication Fellow
Photo of Mugdha Flores
Science Communication Fellow
Photo of Ethan Gold
Data Engineer
Photo of Erin Heffron
Science/Data Team, Mapping
Photo of Renato Kane
Navigator
Photo of Justin Lowe
Data Engineer
Photo of Ashley Marranzino
Science/Data Team
Photo of Stephen Matter
Video Engineering Intern
Photo of Larry Mayer
Lead Scientist
Photo of Ed McNichol
Video Engineer
Photo of Coral Moreno
Science/Data Team
Photo of Kylie Pasternak
ROV Engineering Intern
Photo of Emil Petruncio
Navigator
Photo of Jeffrey Ridgway
Science/Data Team
Photo of Miles Saunders
Navigator
Photo of Val Schmidt
ASV Engineer
Photo of Trevor Shepherd
Hercules Pilot
Photo of Liz Sutton
Science Communication Fellow
Photo of Robert Waters
Hercules Pilot
Photo of Jonathan Zand
Hercules Pilot

Highlights

Album: Cruising Coastlines: Mapping With the Autonomous Surface Vehicle
 
Cruising Coastlines: Mapping With the Autonomous Surface Vehicle
8 photos
July 14, 2017
Video: First Findings from Searching for Paleo Shorelines in the Channel Islands
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First Findings from Searching for Paleo Shorelines in the Channel Islands
November 1, 2018
Video: Expedition Overview: Southern California Borderland
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Expedition Overview: Southern California Borderland
November 8, 2018
Video: Pacific Electric Ray Dazzles From a Distance
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Pacific Electric Ray Dazzles From a Distance
November 15, 2018
Album: Late Night Biology Tour of the Channel Islands
 
Late Night Biology Tour of the Channel Islands
10 photos
November 15, 2018