Rattlesnake Ridge Interbed at Webber Canyon

What the heck's an interbed? It's a geological layer between two other geologic units. In this case, it's a clay and silt layer sandwiched between two of the Columbia River Flood Basalts. It's full of cool soft-sediment deformation features and peperite! Pepperite? However you want to spell it.
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[@GeologyNick]

Very cool! Good video. Fun to see this ripple effect from the Pop-Up event. Thanks Patrick.

[@DonohueLabs]

Thanks, Nick! Too bad about the Pop-Up broadcast issues, but what I could watch was interesting as usual. I hope to attend in person one of these days!

[@jimmarshall1708]

Thanks for your video and excellent description.

[@wiregold8930]

A nice addition to the story of Columbia flood basalt.

[@largent45]

Every video you make is so educational. You and Jared from currently rockhounding, are so great at explaining and educating. And of course, you share a love of basalt! Thank you for all of your videos, and explaining what geological events, has left these cool features, we see today! Awesome!

[@skyecooleyartwork]

Great video! The Rattlesnake interbed looks similarly brecciated at Gable Mountain on the Hanford Site. Palagonite/peperite, too. See Fecht (1978) "Geology of Gable Mtn - Gable Butte Area". The free PDF is online. Same invasion of Elephant Mtn basalt might also occur at Saddle Mts crest, a few miles east of Sentinel Pk. Tem there is overlain by an odd gray, slope-forming unit.

[@jeremiahwise668]

There must be some awesome agates sprinkled in that basalt. I was just waiting for you to find a nodule. I have seen some beautiful rocks from Saddle Mountain. Thank you for sharing.

[@geologicallyspeaking]

This is awesome! Love the mini columns. Well done!

[@DonohueLabs]

Thanks, your videos look interesting, too! Checking out the Crystal Cove one now.

[@mikeymad]

nice video - subscribed and will check out your catalog.

[@annierichards7367]

Great Video

[@Cliffwalkerrockhounding]

I would be interested to hear your interpretations of the basalts on my volcano. There is not an abundance of research to turn to, so one must use a lot of visual clues. I know it was a lacustrine environment and after hearing your explanations here, I see many similarities in the tumultuous basalt formations I see. I thought much of it to be pyroclastic, but perhaps some is peperite. Informative.

[@TheDanEdwards]

Neat. Do you ever find macro-fossils in the interbeds of clay?

[@DonohueLabs]

Haven't looked, actually! This is a good teaching spot so I wouldn't want to mine out the clay. But there could be something. There was a rhino that got buried by flood basalts a bit further north.