Friday, December 3, 2021
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Geology Page

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germinating fossil pine cone
Fossils

A first in fossil research: Seeds sprouting from an amber-encased pine...

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“In the shallows near shore, Tetrapodophis amplectus glides through a tangle of branches from the conifer Duartenia araripensis that have fallen into the water, sharing this habitat with a water bug in the family Belostomatidae and small fish (Dastilbe sp.).” Image credit: Julius Csotonyi
Fossils

Paleontologists debunk fossil thought to be missing link between lizards and...

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Map showing the Great Basin drainage basin as defined hydrologically. (Image credit: Kmusser/Wikimedia Commons)
Volcanoes

Sierra Nevada range should celebrate two birthdays

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A ruptured fault in Searles Valley, California, after the 2019 Ridgecrest earthquakes. A study of earthquakes led by The University of Texas at Austin found that seismic shockwaves are shaped by jagged faults and the debris wedged between them. Credit: Ben Brooks/USGS
Earthquake

Seismic shockwave pattern may be redirecting earthquake damage

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A lab-grown crystal of a synthetic form of the rare earth mineral, monazite, shows extensive damage to one face after exposure to bio-leaching compound generated by Gluconobacter oxydans. Credit: Credit: Brian Balta/Provided
Paleontology

Bacteria may be key to sustainably extracting earth elements for tech

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Meteorites

Scientist reveals cause of lost magnetism at meteorite site

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Copper-rich minerals indicating widespread volcanic activity at the end-Permian mass extinction in different regions in southern China (A: Taoshujing locality; B: Lubei locality; C: Guanbachong; D: Taoshujing locality; E: Longmendong locality). The minerals are all copper sulfides, mostly Malachite--the minerals' green patches. Photo credit: H. Zhang, Nanjing Institute of Geology and Palaeontology.
Volcanoes

‘Volcanic winter’ likely contributed to ecological catastrophe 250 million years ago

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Living reconstruction of Issi saaneq / Photo: Victor Beccari
Dinosaur

‘Cold bone’: Researchers discover first dinosaur species that lived on Greenland...

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Woolly mammoth illustration Mauricio Antón © 2008 Public Library of Science
Fossils

Humans hastened the extinction of the woolly mammoth

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Long neck, long tail, tiny head, tiny teeth. These iconic, gargantuan dinosaurs developed a wholly unique dining strategy to support their massive size. Image by Stephanie Abramowicz, courtesy of the Natural History Museum of Los Angeles County (NHM).
Dinosaur

Tooth Fast, Tooth Curious?

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Brighstoneus simmondsi reconstruction. Credit: John Sibbick
Dinosaur

New species of iguanodontian dinosaur discovered from Isle of Wight

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Pleurosaurus from the Late Jurassic, some 150 million years ago, of southern Germany, a remarkable, long-bodied swimming rhynchocephalian.
Fossils

Rapidly evolving species more likely to go extinct, study suggests

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Laser-stimulated fluorescence imaging of a pterosaur fossil reveals flight-related soft tissues. The imaging revealed a muscular wing root fairing that smooths airflow around the wing-body junction and reduces drag, as in the wing root fairings of modern aeroplanes. (Image credit: Michael Pittman)
Dinosaur

Muscular wing-body junction improved Pterosaur flight performance

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The model offers new insights into how the plate subducted under Japan breaks into segments by bending and thereby crushing olivine grains on its underside. (Graphic: Taras Gerya / ETH Zurich)
plate tectonics

Crushed resistance: Tectonic plate sinking into a subduction zone

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Despite ESA’s GOCE mission ending over seven years ago, scientists continue to use this remarkable satellite’s gravity data to delve deep and unearth secrets about our planet. Recent research shows how scientists have combined GOCE data with measurements taken at the surface to generate a new model of Earth’s crust and upper mantle. This is the first time such a model has been created this way – and it is shedding new light on the processes of plate tectonics. The new model produced in ESA’s 3D Earth study shows for the first time how dissimilar the sub-lithospheric mantle is beneath different oceans, and provides insight as to how the morphology and spreading rates of mid-oceanic ridges may be connected with the deep chemical and thermal structure. Credit: ESA/Planetary Visions)
Earth

Researchers recreate deep-Earth conditions to see how iron copes with extreme...

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Boudins of amphibolite layers (metamorphosed basalts) that were stretched within quartz schists (Norway). Photo credits © Haakon Fossen.
plate tectonics

Fate of sinking tectonic plates is revealed

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The rising Earth from the perspective of the moon.
Earth

Radiocarbon is key to understanding Earth’s past

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A view of the crater of Dotsero volcano, a monogenetic volcano that erupted in Colorado about 4,000 years ago. Credit: Greg Valentine
Volcanoes

Let’s talk about the 1,800-plus ‘young’ volcanoes in the US Southwest

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Brachiopod fossils from the Ordovician Period outcrop on Anticosti Island, Quebec, Canada. (Credit: André Desrochers, University of Ottawa)
Paleontology

Uncovering the secrets behind Earth’s first major mass extinction

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Earth

Some of the world’s oldest rubies linked to early life

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