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Roadcut in shales south of Wilson Lake, Kansas. Can you identify it's proper place in the stratigraphy (www.kgs.ku.edu/Publications/Bulletins/189/09_meso.html#CRET
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- 112
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Gravel deposits that overlie the eroded roots of the metamorphic Appalachian belt in Washington, DC. These gravels are well-rounded and poorly sorted, and contain clasts sourced to the Antietam Formation in the Blue Ridge. The age of the gravels is not entirely clear. They may be as old as Cretaceous, or perhaps "Terti...
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- 34
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This view is toward Wilson Lake from Kansas 232, north of Wilson, Kansas. The knob on the right side of the image is an erosional remnant of Cretaceous aged Dakota Sandstone. Good large-scale bedding features are visible on zooming.
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A more detailed version of a panorama that I posted yesterday, this one previously failed to properly stitch, but seems to be okay this time.
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Overview of the outcrops of cliff-forming Fort Hays and overlying Smoky Hill Members of the Upper Cretaceous Niobrara Formation in southwest Trego County, Kansas.
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- 1874
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The second of five from this afternoon...
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Four friends taking a light-hearted break from exploring for fossils at Quarry 3 in the Changma Basin, northwestern Gansu Province, China. From left to right, quarry worker Mr. Zhang (Fossil Research and Development Center, Lanzhou), volunteer Jack Johnson, vertebrate paleontologist Matt Lamanna (Carnegie Museum of Nat...
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Fourth of a group of five shot yesterday...
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Colloquially called 'the blues' because of the blue-grey color, these sedimentary rocks outcrop in a canyon along Rte 12 in southern Utah. The blue-grey rocks are part of the Cretaceous Kaiparowits formation, which formed when large rivers deposited their sediment. The orange layers in the distance are made up of...
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A Point of Geological Interest, as the highway signs describe it, just hints at the geological lessons that are laid bare here. The roadcuts that were exposed where Interstate 70 traverses the Dakota Hogback, just before rising out of Denver's western suburbs and rising into the Front Range proper, are a showcase of M...
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