Ancient Life Field Trips

Shasta College Department of Geosciences

Geol 6
Ancient Life Field Trips

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	Students poor over a Cretaceous (65 to 140 MA) locality near Beegum. The site returned fossil bivalves and ammonites associated with ancient marine muds and sand that represent distal turbidite deposits. Note the sandstone dike at left that cuts across bedding.
	With the assistance of a student, I was able to excavate a large ammonite from a creek bed near Ono. The fossil cephalopod came from Cretaceous marine deposits.
	Students disembark from a school van in preparation to study fossiliferous rocks near Mammoth Mine along the west side of Shasta Lake (in background).
	Students work to solve the depositional environment of a rocky outcropping on the west side of Shasta Lake. The rock contained fossil coral and is of Devonian age (415 to 355 MA).
	The McCloud River arm of Shasta Lake records marine deposition in gray limestones studied here by students at different levels.
	A McCloud Formation coral from the area pictured above. The coral is Permian in age (290 to 245 MA) and represents part of an extensive ancient coral reef.
	Students gather around one of the Tuscan Springs east of Red Bluff. The springs are associated with sulphur gas emissions and will burn. The area around the springs is Cretaceous in age (65 to 140 MA) and yielded oyster fossils on this trip.