Black Sea Marine Tephra Layers: Geochemistry and Validation Model

120.7 MB of major- and trace-element geochemical data from volcanic glass shards in marine sediment core M72/5-25-GC1 from the southwestern Black Sea. The dataset includes electron microprobe and LA-ICP-MS analyses, a petrochemical validation model, and microscopy images, authored by Ivan Sunye Puchol and last updated in May 2026. It is structured for reuse in geochemical fingerprinting, tephra correlation, and data-driven studies.

Use Cases

• Geochemical fingerprinting of volcanic eruptions based on major- and trace-element glass compositions.
• Correlating tephra layers across regions using the provided glass shard chemistry.
• Validating analytical methods and data quality using the included reference materials and statistical validation model.
• Studying shard morphology and preservation states using the representative back-scattered electron and petrographic microscope images.

Strengths

• Includes both major-element (wt.%) and trace-element (ppm) geochemical data for comprehensive analysis.
• Provides analytical uncertainty (2SE) and limits of detection for trace elements to assess data reliability.
• Contains supporting validation files, including a statistical petrochemical validation model and representative microscopy images.

Limitations

• Row count is unknown, which may limit suitability assessment for large-scale statistical modeling.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic bias inherent to the single marine sediment core from the southwestern Black Sea.

Provenance

Source

Ivan Sunye Puchol via figshare.

Collection Method

Data gathered from electron probe microanalysis (EPMA) and sector-field laser ablation ICP-MS (LA-ICP-MS) of volcanic glass shards.

Freshness

Last updated 2026-05-07 10:42:00

Geography

Southwestern Black Sea, from marine sediment core M72/5-25-GC1.