Plagioclase Macrocryst Electron Probe Analyses from 2021 Fagradalsfall Eruption

Electron probe analyses of plagioclase macrocryst composition from the 2021 Fagradalsfjall volcanic eruption in Iceland. Data includes rim-to-core profiles designed for diffusion chronometry and secondary standard analyses across multiple analytical sessions. The dataset is associated with a forthcoming Geology article led by author Kahl.

Use Cases

• Apply diffusion chronometry models using rim-to-core compositional profiles to estimate timescales of pre-eruptive magmatic processes.
• Calibrate analytical instrument consistency by analyzing the secondary standard data provided across multiple sessions.
• Investigate compositional zoning patterns within plagioclase macrocrysts to understand crystallization dynamics during the 2021 eruption.

Strengths

• Data is linked to a peer-reviewed publication in the journal Geology, ensuring scientific review.
• Analyses include secondary standard measurements for quality control across multiple analytical sessions.
• Profiles are specifically designed for diffusion chronometry applications, providing targeted scientific utility.

Limitations

• Sample size, row count, and specific column features are not provided in the input.
• The dataset's completeness and structure for direct machine learning ingestion are unknown.
• Data is temporally specific to a single eruption event, limiting broader volcanic comparisons.

Provenance

Source

British Geological Survey (BGS), associated with NERC Grant NE/W004690/1.

Collection Method

Electron probe microanalysis of plagioclase macrocrysts collected in rim-to-core profiles.

Time Range

Samples from the 2021 Fagradalsfjall eruption.

Freshness

Last updated in March 2026, indicating recent platform maintenance.

Geography

Fagradalsfjall volcano, Iceland.