Gulf of Mexico Water and Sediment Chemistry from Cruise EN510

NOAA's dataset contains water and sediment chemistry, elemental, and isotopic data from the R/V Endeavor cruise EN510 in the northern Gulf of Mexico. The collection occurred from June 27 to July 4, 2012, focusing on characterizing physical and chemical properties at cold seep sites. All data records include sampling metadata such as time, date, location, collection type, and depth.

Use Cases

• Analyzing carbon-to-nitrogen ratios (C/N) in particulate matter to study organic matter sources.
• Correlating dissolved methane concentrations with isotopic signatures (delta 13C, delta 15N) to trace microbial oxidation.
• Mapping water column salinity, pH, and nutrient concentrations (e.g., dissolved inorganic nitrogen, phosphate) against depth and location.
• Investigating relationships between dissolved gases and sediment chemistry parameters like hydrogen sulfide near cold seeps.

Strengths

• Data includes a specific suite of isotopic measurements (delta 13C, delta 15N) for tracing biogeochemical processes.
• Sampling methodology is documented, using CTD-rosette and MOCNESS systems for water column and particle collection.
• All records contain core sampling metadata: time, date, geographic location, collection type, and depth.

Limitations

• Exact row count, file size, and complete column list are not provided by any source.
• Sources conflict on the last updated date, with one listing 2026-03-05 and another listing the collection end date of 2012-07-04.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Samples collected using a CTD-rosette and a MOCNESS during R/V Endeavor cruise EN510.

Time Range

2012-06 27 to 2012-07-04

Freshness

2026-03-05 22:50:29.535870

Geography

Northern Gulf of Mexico