Wednesday, October 23, 2019
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Geology Page

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Giant gold nugget found in California
Mineral Researches

Prospecting for gold just got a lot easier

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The Ice Drilling Design and Operations (IDDO) group at the University of Wisconsin-Madison designed and built the South Pole Ice Core (SPICE) drilling system, called the Intermediate Depth Drill. Based on a Danish drill called the Hans-Taunsen drill, the Intermediate Depth Drill was purpose-built for coring 1,500 meters of ice. The ice cores collected at this depth (from the South Pole) contain atmospheric gases from the past 40,000 years, the time of transition from the last ice age to the present warm climate. Credit: T.J. Fudge
Volcanoes

Ice core source discovery adds to study of volcanic activity, climate...

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Siamraptor skull reconstruction. Credit: Chokchaloemwong et al., 2019
Dinosaur

Meet Siamraptor suwati, a new species of giant predatory dinosaur from...

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Ancient fossils reveal fresh clues about early life on land
Fossils

Ancient fossils reveal fresh clues about early life on land

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Fossils preserved in Dominican amber reveal a new family, genus and species of microinvertebrate from the mid-Tertiary period, a discovery that shows unique lineages of the tiny creatures were living 30 million years ago. Credit: Provided by George Poinar Jr.
Fossils

Meet the ‘mold pigs’ a new group of invertebrates from 30...

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earthquake in Southern California
Earthquake

Distinguishing earthquake foreshocks and aftershocks

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Geyser Opal "Spencer Opal"
Mineral Researches

Geyser Opal “Spencer Opal”: What is Geyser Opal? How it Formed?

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Benitoite crystals under UV light
Mineral Researches

Benitoite : The Rarest Gemstone Found in the World only been...

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A detail of the southern wall of the Las Cañadas caldera de . It is the best exposed sector of this volcanic structure. (Imagen: Joan Martí)
Continents

Study provides new insight into the origin of Las Cañadas caldera...

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A panoramic view of one of the Arico ignimbrite outcrops where the two units can be seen.(Image: Joan Martí)
Earth

A new study determines the influence of the topography over ...

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Plotosaurus bennisoni is a mosasaur from the Upper Cretaceous (Maastrichtian) North America. Restoration illustration from Wikimedia Commons, CC BY 3.0.
Dinosaur

Did mosasaurs do the breast stroke?

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Fig. 1 Map of the 2016 Kaikōura earthquake and surrounding area. (A) Transpressional tectonic setting of the northeastern South Island of New Zealand. (B) Map of surface ruptures from the 2016 Mw 7.8 Kaikōura earthquake, shown in bold black lines with the Papatea fault in red (8, 28). Dots represent scaled relative energy release from back-projection results (15) and are colored by time since rupture onset. Mapped active faults that did not rupture during the Kaikōura event are indicated by thin black lines (28). Credit: Science Advances 02 Oct 2019: Vol. 5, no. 10, eaax5703, DOI: 10.1126/sciadv.aax5703
Continents

Unusual fault rupture during Kaikōura quake

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A drone image two weeks after the flank collapsed. The volcano peak that had measured 320 meters is missing. Credit: GFZ
Volcanoes

Early warning signals heralded fatal collapse of Krakatau volcano

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Pterosaur
Dinosaur

New Australian pterosaur may have survived the longest

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One of the three fossils of Lessiniabatis aenigmatica (MNHN F.Bol.566) from the famous fossil site of Monte Bolca (Italy) preserved as part and counterpart. The specimen is housed in the Museum National d'Histoire Naturelle of Paris. Credit: Giuseppe Marramà
Fossils

Fossil fish provides new insights into the evolution

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A world map that shows where similary platinum spikes have been discovered in the world. The latest discovery is at the Wonderkrater site in Limpopo Province, South Africa. Credit: Francis Thackeray/Wits University
Asteroid

New research supports hypothesis that asteroid contributed to mass extinction

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A river flows between mountains at Yellowstone National Park in Wyoming. New research tests a 30-year-old theory on the relationship between erosion and mountain height. Photo credit: Seth Cottle/Unsplash
mountain

Why are mountains so high?

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Subduction forced the younger oceanic crust down beneath the supercontinent Pangaea millions of years ago. Credit: University of Melbourne
Volcanoes

Kimberlites: The only volcanic deposits that we know are from the...

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Machu Pichu. Detailed mapping indicates the World Heritage Site’s location and layout were dictated by the underlying geological faults. Photo taken 5 Nov. 2010; credit: Rualdo Menegat.
Fault

Machu Picchu: Ancient Incan sanctuary intentionally built on faults

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A life reconstruction of the feathered dinosaur Anchiornis huxleyi based on fossil evidence of its color and patterning. This evidence included inferences about melanin pigments. Credit: HKU MOOC / Julius T Csotonyi / Michael Pittman.
Fossils

What color were fossil animals?

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