GRD00OVS0
110-P29
Siltstone
Mesozoic › Jurassic › Late Jurassic
145.5
-
161.0
1
Ritter 154 › Cabinet 17 › Drawer J
varves
Original label: Varved siltstone, Naknek formation.
-
-
Alaska
McNeil Cove, Kamishak Bay
Latitude: 59.1°
Longitude: -154.2°
-
Lighter area (carbonate? with clasts) in darker area (chert?)
5.0
plane
Lighter area (carbonate? with clasts) in darker area (chert?)
5.0
crossed
-
scan
crossed
-
scan
plane
GRD00OVT0: Lighter areas are more quartz-rich with occasional plagioclase, opaques, and pyroxene. Mineral abundances vary between areas. Chert replacing carbonate? Carbonate and chert interlayered near bottom of slide. (C. Eichler)
N/A
N/A