GRD00TSS0

110-CH 41

Chert

Paleozoic
251.0 - 542.0

1

Ritter 154 › Cabinet 18 › Drawer N

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Original label: Black Chert. 1951. Coll. No. 144.

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Texas
about 2 miles south of Marathon
Latitude: 30.157°
Longitude: -103.236°

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Veins cutting two beds. Note elongate opaques and quartz.

scan

plane

Veins cutting two beds. Note elongate opaques and quartz.

2.5

crossed

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scan

crossed

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scan

plane

GRD00TST0: Bedded chert with pervasive carbonate veins cross-cutting the beds. Sparry crystal growth along vein walls. Opaque minerals throughout sample. Rounded quartz grains in the more coarse-grained beds. Sample capped by a fine-grained carbonate layer and coarse-grained bed of quartz and skeletal material. (C. Eichler)

N/A

N/A