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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2018-357-FA

Other ID: none

Status: Completed

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

Funding Program(s): Climate Variability (GX.18.MN00.E8Z32.00)

Principal Investigator(s): Julie Richey

Affiliate Investigator(s):

Information Specialist(s): Jennifer Flannery

Data Type(s): Sampling: Geology, Sampling: Chemistry, Sampling: Biology, Environmental Data: Temperature, Environmental Data: Sediment Properties, Environmental Data: pH, Environmental Data: Dissolved Oxygen, Environmental Data: Depth, Environmental Data: CTD

Scientific Purpose/Goals: Lake Enriquillo, located in the Dominican Republic, is an important location to examine ocean-continent interactions due to its remote location far from anthropogenic influences. Lake Enriquillo is a hypersaline lake, which leads to excellent sediment preservation, and is situated to record the balance of evaporation and precipitation. The purpose of this trip is to collect sediment samples from Lake Enriquillo for organic geochemical analyses. These geochemical analyses include faunal assemblages, alkane biomarkers, alkenone sea surface temperature reconstruction, and analysis of lipids (dinosterol). Additional water samples will be collected over a depth profile and analyzed for salinity, pH, total alkalinity, and oxygen isotopes. The ultimate goal is to reconstruct temperature, evaporation, and precipitation patterns over the past few centuries.

Vehicle(s): Chevy Suburban - Silver

Start Port/Location: St. Petersburg, FL, USA

End Port/Location: St. Petersburg, FL, USA

Start Date: 2018-11-03

End Date: 2018-11-09

Equipment Used: Other, Grab Sampler, YSI Professional Plus multiparameter meter, Conductivity, Temperature and Depth (CTD) Logger/Probe

Information to be Derived: water samples: salinity, pH, total alkalinity, and oxygen isotopes sediment samples: faunal assemblages, alkane biomarkers, alkenone sea surface temperature reconstruction, and analysis of lipids.

Summary of Activity and Data Gathered:

Staff: Jennifer Flannery

Affiliate Staff:

Notes:

Location:

Dominican Republic, Lake Enriquillo

Boundaries
North: 18.59759939 South: 18.38375004 West: -71.87826075 East: -71.42204737

Platform(s):

Publications

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Other --- --- ---
Grab Sampler --- Geology
Biology
YSI Professional Plus multiparameter meter --- Conductivity
Depth
Dissolved Oxygen
Nitrate
ORP
pH
Temperature
Conductivity, Temperature and Depth (CTD) Logger/Probe --- CTD

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