Day #44 Outcrop: Jurassic Ripplemarks

As the Alameda Parkway traverses the Dinosaur Ridge hogback on the west side of Denver, CO roadcuts expose a wonderful array of sedimentary rocks, including the famous Jurassic Morrison Formation, not far from its type locality. This weekend I want to highlight some of the beautifully preserved ripplemarks near where the Parkway crosses the crest of the ridge. We’ll look at some younger ripplemarks tomorrow…

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Linear Ripplemarks

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Interference Ripplemarks

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Ripplemark Profile

As a geologist I’m usually focusing my camera at the rocks and occasionally cursing the flora that gets in the way. However, I’m not averse to taking photos of pretty flowers – especially when they serve to illustrate a geologic feature. This one was just a stone’s throw from those lovely ripplemarks…

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Joint-Controlled Flora – Indian Paintbrush

Explore this and all of my 2010 Deskcrops and Outcrops in Google Earth!

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