Plagioclase and Whole-Rock Geochemical Data from Japan for Porphyry Deposit Testing

Major and trace element data for plagioclase and whole-rock samples from Japan, filtered from the GEOROC online database as of 1 January 2017. The data was used to test the plagioclase porphyry indicator mineral method described in Williamson et al. (2016) on Japan as a negative control region. This dataset was produced by the British Geological Survey and used in a 2018 Resource Geology publication.

Use Cases

• Test the plagioclase porphyry indicator mineral method based on major and trace element data.
• Analyze geochemical signatures of magmatic systems in Japan based on whole-rock and mineral-specific data.
• Validate exploration methodologies in regions without known deposits based on the described use as a negative control.

Strengths

• Data originates from the authoritative GEOROC online database.
• Dataset has a documented scientific application, cited in a 2018 peer-reviewed journal article.
• Samples are from a specific geographic region (Japan) serving as a defined geological control.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data snapshot is from 2017; newer data may exist in the source database.

Provenance

Source

GEOROC online database (http://georoc.mpch-mainz.gwdg.de/georoc).

Collection Method

Sampled and filtered from the GEOROC database.

Time Range

Database state as of 1 January 2017.

Freshness

Last updated 2026-05-28 14:05:26.313272; freshness should be verified.

Geography

Japan