Tuesday, January 19, 2021
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Geology Page

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Mineral Researches

Scientists and philosopher team up, propose a new way to categorize...

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Map of the Cascadia subduction zone. Credit: Public Domain
Earthquake

Deep, slow-slip action may direct largest earthquakes and their tsunamis

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A plume rises near active fissures in the crater of Hawaii's Kilauea volcano on Monday, Dec. 21, 2020. People are lining up to try to get a look at the volcano on the Big Island, which erupted last night and spewed ash and steam into the atmosphere. A spokeswoman for Hawaii Volcanoes National Park says the volcanic activity is a risk to people in the park Monday and that caution is needed. (M. Patrick/U.S. Geological Survey via AP)
Volcanoes

Lava lake forms as Hawaii volcano erupts after 2-year break

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Overview of the study area and the schematic illustration of interaction of fault motion and the seafloor subsidence. Credit: University of Tsukuba
Earthquake

New model reveals previously unrecognized complexity of oceanic earthquake zones

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Calcium carbonate samples from a sediment core drilled from the mid-Pacific Mountains. Credit: Northwestern University
Volcanoes

Volcanic eruptions directly triggered ocean acidification during Early Cretaceous

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Pululagua in Ecuador
Volcanoes

Scientists develop new approach to understanding massive volcanic eruptions

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Photo: © Christian S. Marien
plate tectonics

Slow start of plate tectonics despite a hot early Earth

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The scientists examined more than 3,500 fossils to identify survivor pairs - plants that grew in both the Cretaceous and Paleogene periods. The two fossils on the left are from the Cretaceous, and the two on the right are from the Paleogene. Credit: Elena Stiles
Fossils

Leaf fossils show severe end-Cretaceous plant extinction in southern Argentina

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Researcher overlooking one of the two field sites for the study, the Frenchman Valley in Chambery Coulee Saskatchewan in July 2017. Credit: McGill University
Dinosaur

When dinosaurs disappeared, forests thrived

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2D Life reconstruction Atuchin. Credit: © Andrey Atuchin
Fossils

The ‘crazy beast’ that lived among the dinosaurs

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Ubirajara jubatus is named after a Tupi Indian name for 'lord of the spear', in reference to the creature's stiffened, elongate integumentary structures, and jubatus from the Latin meaning 'maned' or 'crested'. Image must be credited Credit: Artwork © Bob Nicholls / Paleocreations.com 2020
Dinosaur

New dinosaur showed descendants how to dress to impress

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The head and body of the Messel python are almost completely preserved. Credit: Hessian State Museum Darmstadt
Fossils

World’s earliest python identified from 47 million-year-old fossil remains

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Part of a jawbone of the 422-million-year-old fossil bony fish Lophosteus, visualized with a high-resolution X-ray technique. On the right, the surface of the jawbone is shown in gray. In the middle, exposed teeth are highlighted in gold and dermal odontodes in shades of purple, pink and red. On the left, the bone itself is made transparent, revealing internal blood vessels and pulp cavities, shown in blue and green, as well as the embedded teeth and dermal odontodes. Credit: Chen et al. (CC BY 4.0)
Fossils

Primitive fish fossils reveal developmental origins of teeth

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Braincase and endocast of Thecodontosaurus antiquus. From CT scans of the braincase fossil, 3-D models of the braincase and the endocast were generated and studied. Credit: Created by Antonio Ballell with BioRender, Thecodontosaurus silhouette from PhyloPic.org.
Dinosaur

Research reveals unexpected insights into early dinosaur’s brain, eating habits and...

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Illustration shows a cross section of the prehistoric iguana burrow, and how the surrounding landscape may have looked during the Late Pleistocene Epoch. Credit: Anthony Martin.
Fossils

First-known fossil iguana burrow found in the Bahamas

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Illustration of Thalassodraco etchesi. Credit: Megan Jacobs
Fossils

Prehistoric ‘sea dragon’ discovered on English Channel Coast is identified as...

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A partial skeleton of Lagerpeton (hips, leg, and vertebrae) from ~235 million years from Argentina. Further examination of this specimen helped tie features of lagerpetids to pterosaurs. Photo courtesy of Sterling Nesbitt. Credit: Virginia Tech
Dinosaur

Paleontologists find pterosaur precursors that fill a gap in early evolutionary...

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Remnants of feather sheaths on the wings of the fossil bird Archaeopteryx, shows the earliest evidence of a complex moulting strategy. The white arrows indicate the feather sheaths. Scale bar is 1 cm. Credit: Kaye et al. 2020.
Dinosaur

Archaeopteryx fossil provides insights into the origins of flight

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Rainbow Cave, Hormuz Island, Iran
Geologic Sites

Rainbow Cave, Hormuz Island, Iran

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A lava fountain during the 1959 eruption of Kilauea Iki. Credit: USGS
Volcanoes

Crystals may help reveal hidden Kilauea Volcano behavior

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