Structural And Lithological Mapping Of Antarctic Koettlitz Group

Field work mapped lithology and structure in the St. Johns Range, Southern Victoria Land, Antarctica. The study focused on the Koettlitz Group, orthogneiss, and plutonic granitoids to determine relationships between metamorphism, deformation, and pluton intrusion. Data was collected by SCIOPS and published via NASA EarthData in 1991.

Use Cases

• Analyze spatial relationships between lithology and structural features like contacts between plutons and country rock.
• Correlate geochemical analysis results from rock samples with mapped lithological units such as orthogneiss and mafic augen gneiss.
• Use Rb-Sr dating data from orthogneiss samples to constrain the timing of deformational events in the region.
• Study mineralogy and geochemistry data from collected samples to determine magmatic interrelations and metamorphic history.

Strengths

• Data includes detailed structural and lithological mapping across multiple glacier-bounded ridges.
• Study incorporates multiple analysis methods including field mapping, geochemistry, mineralogy, and radiometric dating.

Limitations

• Dataset is temporally stale, with last update in 1991.
• Specific sample count, row count, and file formats are unknown.
• Geographic scope is limited to a specific range in the McMurdo Dry Valleys.

Provenance

Source

NASA EarthData (SCIOPS)

Collection Method

Field mapping, rock sampling, laboratory geochemical and mineralogical analysis, radiometric dating.

Time Range

Field work period unspecified; publication date 1991.

Geography

St. Johns Range, McMurdo Dry Valleys, Southern Victoria Land, Antarctica.