Supplementary file 1_Sources and distributions of a suite of underexplored particulate tra

Pengcheng Zhao's dataset, last updated May 8, 2026, reports concentrations of labile and refractory particulate trace elements from the GEOTRACES GA08 transect on the southwest African shelf and slope. It includes data for gallium, germanium, beryllium, tellurium, tin, antimony, strontium, and thallium, with concentrations ranging from 10^-1 to 10^3 pmol L^-1. The data provides an integrated framework for the cycling of these elements, detailing source mixing and particle reactivity.

Use Cases

• Modeling marine biogeochemical cycles based on labile and refractory particulate trace element concentrations.
• Analyzing the influence of riverine inputs (e.g., Congo River) on trace element distributions in shelf waters.
• Studying biological uptake and remineralization processes based on depth-dependent correlations with particulate phosphorus.
• Comparing source contributions (river, atmosphere, sediment resuspension) to particulate trace element pools in oceanic regions.

Strengths

• Covers eight distinct particulate trace elements (Ga, Ge, Be, Te, Sn, Sb, Sr, Tl) with labile and refractory fractions quantified.
• Provides concentration data across a wide range (10^-1 to 10^3 pmol L^-1) from the GEOTRACES GA08 transect.
• Includes calculated average labile particulate fractions for each element, with values ranging from <65% to >90%.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The primary data file is a DOCX document (3.2 MB), which may require extraction and formatting for analysis.

Provenance

Source

Pengcheng Zhao via figshare.

Collection Method

Samples collected along the GEOTRACES GA08 transect on the southwest African shelf and slope into the South Atlantic Ocean.

Freshness

Last updated 2026-05-08 05:57:03; freshness should be verified.

Geography

Southwest African shelf and slope, extending into the South Atlantic Ocean along the GEOTRACES GA08 transect.