Lower Wellar Coal Measure Sequence With Analcime Horizon

Analcime, an unusual mineral, forms a pure horizon traced along the Mt. Fleming ridge, suggesting a distal Permian volcanic ash event. The dataset documents an investigation and extensive sampling of the lower Wellar Coal Measure sequence by organization SCIOPS. Data was last updated in January 1977.

Use Cases

• Map the spatial distribution of the analcime horizon along the northern side of the central Mt. Fleming ridge.
• Analyze the x-ray analysis results confirming the near-pure analcime composition of the sampled horizon.
• Correlate the analcime layer with other Permian sequences to investigate regional volcanic ash deposition patterns.
• Study the texture and appearance of the horizon as described to differentiate it from typical coal measure sediments.

Strengths

• Dataset is based on field investigation with extensive sampling of the sequence.
• Analysis includes specific mineralogical identification via x-ray analysis.

Limitations

• Dataset is temporally stale, with the last update recorded in 1977.
• Sample size, row count, and specific data formats are unknown.
• Geographic coverage is limited to a specific part of the Mt. Fleming ridge.

Provenance

Source

SCIOPS via NASA Earthdata.

Collection Method

Field investigation, extensive sampling, and laboratory x-ray analysis.

Time Range

Permian geological period.

Freshness

1977-01-27

Geography

Northern side of the central part of the Mt. Fleming ridge.