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Close-up view of light-colored salt and darker surrounding clay and other minerals. The photo from the Bad Ischl salt mine near Hallstatt is about ½ m across.
Theropod tracks on the outskirts of the town of Torotoro.
The Galapagos finches are several species of passerine birds that Charles Darwin collected for the first time during the second voyage of the Beagle. These birds are colored and weigh between 8 and 38 grams. The most important differences between different species are the size and shape of their peaks, which are related to different eating habits
View of Cerro Colorado from the North, showing sandstone layers.
A confluence is the point at which two streams flowing from different directions unite. This photo shows a confluence of two streams, approximately equal in size and width, draining the basement complex in north-central Nigeria.
Entire groups of fish found as fossils in Devonian rock layers disappear from higher strata. Among them are osteostracans, like Cephalaspis, a jawless armored fish. Human fingernail for scale. Specimen on display at the Colorado Museum of Nature and Science.
The capybara is the largest living rodent in the world. It is native to South America.
Wildflysch is a poorly sorted sedimentary rock resulting from a mass sediment flow. Note the backpack in the lower right corner for scale. Many inclusions can be seen, including a large one which fills the center of the picture.
Close-up view of lighter salt and darker clay layers from the purer salt deposits. Note the offset of layers due to movement of the deposit. Photo from the Bad Ischl salt mine is about ½ m across.
Mt. Sopris, Carbondale --- The granitic magma that solidified to form this mountain was intruded below sedimentary layers that have since been eroded away on top, but still remain tilted upwards along the edges.
Succession of Upper Cretaceous and Cenozoic sediments in the Maragua syncline region, Bolivia
Forest of Scalesia. Scalesia is a genus of plants in the Asteraceae family that is endemic to the Galápagos Islands.