Geochronology, geochemistry, Sr–Nd isotope composition and petrogenesis of Early Devonian

Early Devonian magmatic rocks from the Uryup sector of the Minusinsk trough provide a record of regional geologic history. The dataset includes U-Pb baddeleyite isotope ages, major and trace element geochemistry, and Sr-Nd isotope compositions for three rock suites: Bazyr, Beresh, and Ashpan. It was authored by Alexander Vorontsov and published on figshare under a CC-BY-4.0 license.

Use Cases

• Modeling mantle plume and crustal contamination processes based on Sr-Nd isotope compositions and trace element patterns.
• Classifying and correlating volcanic suites based on major element geochemistry and rock type descriptions.
• Constraining the timing of magmatic events based on U-Pb baddeleyite geochronological data.
• Investigating the relationship between alkalic and sub-alkalic rock series based on nepheline content and alkali element enrichment.

Strengths

• Includes multiple data types: geochronology (U-Pb), geochemistry (major/trace elements), and isotope data (Sr-Nd).
• Focuses on a specific geologic time period (Early Devonian) and location (Uryup sector, Minusinsk trough).
• Data supports a proposed petrogenetic model involving mantle plumes and crustal contamination.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The primary files are DOCX and JPG, which may require conversion for computational analysis.

Provenance

Source

Alexander Vorontsov via figshare.

Collection Method

Laboratory analysis of rock samples, including ID-TIMS for U-Pb dating and geochemical/isotopic measurements.

Time Range

Early Devonian.

Freshness

Last updated 2026-04-13 06:12:16; freshness should be verified.

Geography

Uryup sector, Minusinsk trough, Altai–Sayan Large Igneous Province, Siberia.