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[[image: red ink line drawing of cross section of strata. Labelled in blue ink: "Sketch by Hal [[Borks?]] 12/23/81
Showing horizons in Allan Hills and seams w. [[Glossopteris?]] Flora."

 The strata is labelled "Beacon Group" showing five layers, grade level snow/ice?); wavy line (terra firma?); and various labels: Tri., coal, perm., soil, "tillite?". Two vertical shafts through the layers "xxxx." Notation at top "MAWSON ~155 MY JUR.." Notation below drawing: "MAWSON GRADED GEOS, 3-400' Thick."

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Transcription Notes:
Glossopteris: https://www.britannica.com/plant/Glossopteris