Kadiri Greenstone Belt Geochemical and Geochronological Data

Eastern Dharwar craton in India provides the location for this dataset of Neoarchaean volcanic rocks. It includes geochemical analyses and zircon U-Pb dating results for tholeiitic basalts, calc-alkaline andesites, and dacites–rhyolites. The data was compiled by author Sukanta Dey from field and laboratory studies, including a rhyolite sample dated to 2353±32 Ma.

Use Cases

• Classifying volcanic rock suites based on major and trace element geochemistry described in the summary.
• Modeling petrogenetic processes for mantle plume and subduction-related magmas using the geochemical signatures.
• Constraining the timing of Neoarchaean geological events based on the provided zircon U-Pb age.
• Investigating crust formation mechanisms in hot orogens using the combined geochemical and geochronological evidence.

Strengths

• Includes a specific zircon U-Pb age measurement of 2353±32 Ma for a rhyolite sample.
• Geochemical data covers three distinct volcanic suites with detailed compositional ranges (e.g., SiO2=61–72 wt%, Mg# 0.66–0.52).
• Petrogenetic interpretations are provided, linking rock types to specific tectonic settings like oceanic plateaus and continental margin arcs.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

Sukanta Dey

Collection Method

Field and geochemical studies combined with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) zircon U–Pb dating.

Time Range

Neoarchaean, with a specific date point of approximately 2.35 Ga.

Geography

Kadiri Greenstone Belt, eastern Dharwar craton, India