Geology of the Stillwell Hills with Rock Formations Spanning 2500 Million Years

2500 Million years of geological history are recorded in the granulite facies gneisses of the Stillwell Hills region. This dataset from the Australian Ocean Data Network describes Archaean to Proterozoic orthogneisses, charnockitic gneiss, mafic sills, dykes, and subordinate supracrustal rocks. The data was last updated on 2026-06-04.

Use Cases

• Classifying rock types based on described formations like Stillwell Orthogneiss and Scoresby Charnockite.
• Modeling geological timelines based on evidence for multiple periods of deformation and metamorphism.
• Mapping the spatial distribution of Archaean craton margins and younger crustal additions mentioned in the description.

Strengths

• Describes a geological record spanning more than 2500 Million years.
• Lists specific rock formations and packages, such as Stillwell Orthogneiss and Kemp Dykes.
• Associated with the authoritative Australian Ocean Data Network.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au.

Provenance

Source

Australian Ocean Data Network

Time Range

Archaean to Proterozoic (spanning more than 2500 Million years)

Freshness

Last updated 2026-06-04 07:19:47.679128; freshness should be verified.

Geography

Stillwell Hills region, Antarctica (near Enderby Land)