GRD045RS0
UMF-23
Ultramafic Extrusive
Precambrian › Archean
2500.0
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3850.0
0
Ritter 154 › Cabinet 29 › Drawer K
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Basaltic komatiite flow above 22. Possibly 100 to 150 feet above UMF-22. Bulbous or tubular features on outcrop thought to represent lava tubes. Specimen collected from freshest most massive material from a so-called lava tube. Illustrated in kodachrome slide set.
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Canada
Theos Flow, Ontario, near Potterdoal Mine, Munro Township, Canada
Latitude: 48.6244°
Longitude: -80.2232°