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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2017-331-FA

Other ID: none

Status: Completed

Organization(s): USGS, St. Petersburg Coastal and Marine Science Center

Funding Program(s): Coral Reef Ecosystems Studies - CREST (GX.22.MN00.E3R50.00)

Principal Investigator(s): Lauren Toth

Affiliate Investigator(s):

Information Specialist(s): Billy Reynolds, Anastasios Stathakopoulos, Hunter Wilcox

Data Type(s): Location-Elevation: Benchmarks, Location-Elevation: Navigation, Sampling: Geology

Scientific Purpose/Goals: Collecting cores of coral-reef framework (drill coring)

Vehicle(s): White Dodge Pickup - White, Ford F-350 Dually - Silver (GSA)

Start Port/Location: Saint Petersburg, Florida

End Port/Location: Monroe County, Florida (Key West)

Start Date: 2017-08-13

End Date: 2017-08-25

Equipment Used: Ashtech Z-Xtreme DGPS, Choke Ring Antenna, Hydraulic Coring Drill

Information to be Derived: Trends in Holocene reef development

Summary of Activity and Data Gathered: Underwater wire-line coring to obtain cores of Holocene the reef.

Staff: Billy Reynolds, Anastasios Stathakopoulos, Lauren Toth, Hunter Wilcox

Affiliate Staff:

Notes: Initial survey dates were June 13-27, 2017. An additional site visit will be required to complete data collection activities.


Dry Tortugas National Park (DRTO) - Pulaski Shoal

North: 24.75374177 South: 24.42808312 West: -83.17338179 East: -82.72839356


photo of Halimeda
photo of Twin Vee (Jabba Jaw)
Twin Vee (Jabba Jaw)


Toth, L.T., Stathakopoulos, A., 2019, The absolute and relative composition of Holocene Reef Cores from the Florida Keys reef tract: U.S. Geological Survey data release,

Toth, L.T., Stathakopoulos, A., Kuffner, I.B., 2018, Descriptive core logs, core photographs, radiocarbon ages, and accretion data from Holocene reef cores collected throughout the Florida Keys reef tract: U.S. Geological Survey data release,


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Ashtech Z-Xtreme DGPS --- Benchmarks
Choke Ring Antenna --- Benchmarks
Hydraulic Coring Drill --- Geology

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