Petrology and Geochronology of Katangan Gabbroic Rocks in Central African Copperbelt

This dataset supports research on the petrology, age, and alteration of gabbroic rocks from the Katangan large igneous province in the Central African Copperbelt of Zambia. It includes lithogeochemical data and two new high-precision U-Pb CA-ID-TIMS zircon ages of 740.3 ± 1.1 Ma and 741.1 ± 1.5 Ma. The data is used to understand the petrogenesis of mafic intrusive rocks and their relation to copper and cobalt deposits.

Use Cases

• Analyze lithogeochemical data to model petrogenesis through fractional crystallization, assimilation, and magma mixing.
• Compare high-precision U-Pb CA-ID-TIMS zircon ages (e.g., 740.3 ± 1.1 Ma) with older published ages to refine the timeline of Katangan magmatism.
• Investigate the chemical composition and geotectonic environment of gabbroic rocks for comparison with other large igneous provinces like Paraná-Etendeka.
• Study the relationship between mafic intrusive rock characteristics and the abundance of copper, cobalt, zinc, and nickel in the Central African Copperbelt deposits.

Strengths

• Includes two new high-precision U-Pb CA-ID-TIMS zircon ages with reported uncertainties (740.3 ± 1.1 Ma and 741.1 ± 1.5 Ma).
• Data is directly linked to a specific geological province, the Katangan large igneous province within the Central African Copperbelt.
• Supports replication of published research on petrology and geochronology.

Limitations

• The dataset's size, row count, column structure, and specific file formats are unknown.
• Sample data is unavailable, limiting preliminary assessment of data structure and completeness.
• Geographic coverage may be focused on specific subregions like the Domes region and southeastern Congolese Copperbelt, as noted in the description.

Provenance

Source

Borealis Harvested Dataverse, authored by Rafael Bacha.

Collection Method

Data collected for replicating research on petrology, age, and alteration of gabbroic rocks; includes lithogeochemical analysis and U-Pb CA-ID-TIMS dating.

Time Range

Rock ages are Neoproterozoic, with specific dates around 740-741 Ma and references to older ages around 763-765 Ma.

Freshness

Last updated on 2026-02-21.

Geography

Central African Copperbelt, specifically southeastern Democratic Republic of Congo and northwestern Zambia, with focus on the Domes region and southeastern Congolese Copperbelt.