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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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folded strata in the road from Pte. Samacá to Villa de Leyva
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View of Late K Strata near Macheta, Eastern Cordillera of Colombia
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- Reconstructed skeleton of Spinosaurus during installation, Dinosaur Expo 2009, Tokyo by Matthew Lamanna
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A life-sized reconstruction of the skeleton of the gigantic (~15 m long) North African Cretaceous theropod dinosaur Spinosaurus aegyptiacus, produced by the Japanese natural history exhibition company HAN Project 21 Co., Ltd. and exhibited in their 2009 dinosaur exposition in Tokyo (Dinosaur Expo 2009: The Miracle of D...
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This is an exposure of late Cretaceous deepwater conglomerates, Cerro Toro Formation, Cerro Benitez, Southern Chile. They were deposited in a foreland basin, probably by very large turbidity currents able to carry cobble-sized material. For more details, see this paper: Hubbard, S. M., Romans, B. W., & Graham, S. (...
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This is the roadcut opposite the one seen here: gigapan.org/gigapans/64148/
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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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The interior of the main building at the Liujiaxia Dinosaur Geopark, Gansu Province, China. The mounted dinosaur skeleton on the left is a cast of that of the gigantic iguanodontian Lanzhousaurus magnidens; that on the right is the titanosauriform Huanghetitan liujiaxiaensis. Both of these herbivorous dinosaurs were na...
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Fossil excavation at Quarry 3 in the Changma Basin of northwestern Gansu Province, China (June 7, 2009). Quarries like this at Changma have thus far yielded thousands of ~115 million-year-old fossils, including approximately 100 partial to nearly complete skeletons of archaic birds belonging to several species. (Note ...
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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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