Table 7_Petrogenesis and tectonic implications of I-type and A-type granitoids in the Dach

Zircon and apatite U-Pb geochronology, whole-rock geochemistry, and Sr-Nd isotopic analyses were conducted on intermediate-felsic intrusions from the Dachadaban area. The dataset likely contains measurements for 512-504 Ma granitoids, including elemental concentrations, isotopic ratios, and crystallization temperatures. It was authored by Jie Sun and published on figshare under a CC-BY-4.0 license.

Use Cases

• Classifying granitoid types (I-type vs. A-type) based on apatite and whole-rock geochemical characteristics.
• Modeling magma source and mantle input based on initial Sr isotopic ratios and εNd(t) values.
• Reconstructing tectonic settings using geochemical discrimination diagrams mentioned in the description.
• Analyzing crystallization conditions based on zircon Ti-thermometry and oxygen fugacity data.

Strengths

• Includes multiple analytical methods (geochronology, geochemistry, isotopes) for a coherent sample set.
• Provides a specific temporal constraint for the magmatic event (512-504 Ma).
• Data is openly licensed (CC-BY-4.0) for reuse.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is very small (12.2 KB), indicating limited scope.

Provenance

Source

figshare, authored by Jie Sun.

Collection Method

Zircon and apatite U-Pb dating, whole-rock geochemistry, and Sr-Nd isotopic analysis.

Time Range

Late Cambrian (512-504 Ma).

Freshness

Last updated 2026-04-20 05:23:22; freshness should be verified.

Geography

Dachadaban area, North Qilian Orogenic Belt.