GRD00ZSS0

110-S176

Quartz Sandstone

Mesozoic › Jurassic
145.5 - 201.6

1

Ritter 154 › Cabinet 17 › Drawer D

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Navajo Formation. Core sample

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Arizona
6 miles northeast of Dennehatso, 35 miles northeast of Kayenta
Latitude: 36.89°
Longitude: -109.91°

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scan

crossed

GRD00ZST0: 98% quartz grains, 2% plagioclase, trace opaques and zircon. All grains are well-rounded. (C. Eichler)

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