Antarctic Seafloor Sediment and Microorganism Samples with Current and Depth Data

Seafloor sediment samples were collected from eight sites along the Victoria Land coast to investigate relationships between sediment texture, microorganisms, water depth, and currents. The dataset includes samples for grain size analysis, foraminiferal work, and water samples for oxygen and carbon isotope analysis, collected in 1987. This data from SCIOPS may help interpret sea level changes in cored sequences by comparing modern shoreline conditions with fossil records.

Use Cases

• Modeling relationships between sediment texture and water depth based on the described transect sampling.
• Analyzing diatom and foraminifera species diversity as indicators of environmental conditions.
• Correlating ocean current measurements with substrate types like bedrock, gravel, sand, and mud.
• Using pH and isotope data from water samples to infer chemical properties at different depths.

Strengths

• Samples were collected from eight distinct sites representing a range of coastal types from exposed to embayed.
• Multiple data types were gathered per site, including bathymetry, sediment, biota, and current measurements.
• Water samples for isotope analysis were taken at specific depths (10m below ice, 5m above floor).

Limitations

• Last updated 1987-12-08 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

SCIOPS via nasa_earthdata

Collection Method

Seafloor sediment and water samples collected via shore-normal transects, with bathymetry surveys and current measurements.

Time Range

1987

Freshness

1987-12-08 23:59:59.999000

Geography

Victoria Land coast, McMurdo Sound, Antarctica, from Trip Island to Cape Armitage.