A Billion Years Missing From Geologic Record
A Billion Years Missing From Geologic Record

A hiker walks along a road near Manitou Springs, Colorado, where an exposed outcrop shows a feature known as the “Great Unconformity.”Cre...

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Geochemists Solve Mystery of Earth's Vanishing Crust
Geochemists Solve Mystery of Earth's Vanishing Crust

Recycled ancient crust returns to the oceanic ridges. Credit: Caroline McNiel/National MagLab Thank goodness for the Earth's crus...

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Woman Finds 2.23-carat Diamond in Arkansas
Woman Finds 2.23-carat Diamond in Arkansas

 (Photo: Arkansas State Parks) A 56-year-old Arkansas woman was close to leaving Crater of Diamonds State Park in Murfreesboro Saturd...

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Tanzanian Miner Finds World's Biggest Gemstone Worth $3.3 Million
Tanzanian Miner Finds World's Biggest Gemstone Worth $3.3 Million

The dark violet-blue gemstones were found by miner Saniniu Laizer in one of the tanzanite mines in the northern part of Tanzania The f...

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5.8-Magnitude Earthquake Hits Central California
5.8-Magnitude Earthquake Hits Central California

Initial reports indicate a 5.8-magnitude earthquake in California was felt in Las Vegas. The earthquake happened southwest of Owens Lak...

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California's Earthquake 'Swarm' Was Triggered by Fluid, Scientists Say
California's Earthquake 'Swarm' Was Triggered by Fluid, Scientists Say

An animation summarising the team's observations. A fault zone is embedded in host rock and exhibits geometric warping along strike...

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Steamboat Tourmaline: One of California's Finest Minerals
Steamboat Tourmaline: One of California's Finest Minerals

This is the famous "Steamboat" tourmaline mineral specimen At nearly a foot tall this pair of red tourmaline crystals with g...

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Giant Ancient Egg Found in Antarctica Could Be First From a Mosasaur
Giant Ancient Egg Found in Antarctica Could Be First From a Mosasaur

The fossil egg, which looks like a deflated footballLegendre et al. (2020) Antarctica's 'deflated football' fossil is wor...

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Utah's Arches Continue to Whisper Their Secrets
Utah's Arches Continue to Whisper Their Secrets

Sunset at Delicate Arch (Arches National Park, Utah). Two new studies from University of Utah researchers show what can be learned f...

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Scientists Discover “Unexpected” Structures Near Earth’s Core
Scientists Discover “Unexpected” Structures Near Earth’s Core

Earthquakes send sound waves through the Earth. Seismograms record the echoes as those waves travel along the core-mantle boundary, diffr...

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“Exceptionally Preserved” Dinosaur Remains Reveal Surprising Remnants In Its Stomach
“Exceptionally Preserved” Dinosaur Remains Reveal Surprising Remnants In Its Stomach

The holotype specimen on display at the Royal Tyrell Museum More than 110 million years ago, a lumbering 1,300-kilogram, armor-plated...

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Yellowstone Volcano's Biggest Ever Super-Eruption Discovered
Yellowstone Volcano's Biggest Ever Super-Eruption Discovered

Fountain Paint Pot, Yellowstone National Park. Credit: National Park Service. The biggest super-eruption ever to be recorded at Yellow...

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Scientists Discover New Forms of Feldspars
Scientists Discover New Forms of Feldspars

Amazonite, the blue-green variety of the feldspar Microcline with Smoky Quartz and Cleavelandite (Albite). Crystal Peak area. Teller Co.,...

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