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James Repka

@jrepka

Earth sciences instructor at a 2-year college

Photos and Videos by @jrepka

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This morning we are learning about various uses for local native plants. Apparently yucca is Da Bomb!

Mt Humphries in the background; stream cutting through sand-sized tephra fragments. Lunch stop.

Typical geo trip. Volcano & lava flow in the background, students discussing the only plant in the area.

Chinle formation. The white band in the middle is the petrified forest member.

Petrified wood as the cap rock on a pedestal.

Sunset crater at (you guessed it) sunset!

Part of the crew, including co-leader Peter Borella, w/ Meteor Crater in background #GEO170

Large amphitheater in Redwall limestone, just below Supai group.

Contact between Coconino SS and Hermit shale

Peter lecturing over the din of traffic on the Peach Springs Tuff

12:00 -- first view of Peach Springs Tuff; road cut in Kingman AZ

Double rainbow near the school, taken at 6:15 this morning...

Alright, this sunset made it worth putting up with the rain today...

Happy Birthday! The first syndicated Doonesbury strip appeared in print 40 years ago today. One of my favorites:

Two dolphin skulls, also Miocene in age.

Subbing for fossil prep class. Student is cleaning up a cast containing marine mammal bones.

Two dolphin skulls, also Miocene in age.

Upper cast just opened. Closer one contains bones of a small pinniped (Miocene).

First field trip of the semester! Students at Fossil Falls...

Hamburger bun concretion in the Monterey formation at Crystal Cove State Park...

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