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Researchers have discovered that the underside of the North American continent is dripping away in blobs of rock — and that the remnants of a tectonic plate sinking in the Earth’s mantle may be the reason why.
A paper published in Nature Geoscience describes the phenomenon, which was discovered at The University of Texas at Austin. It’s the first time that “cratonic thinning” may be captured in action.
“We made the observation that there could be something beneath the craton,” said the study’s lead author Junlin Hua, who conducted the research during a postdoctoral fellowship at UT’s Jackson School of Geosciences. “Luckily, we also got the new idea about what drives this thinning.”
Cratons are very old rocks that are part of Earth’s continents. They’re known for their stability and ability to persist for billions of years. But sometimes cratons undergo changes that can affect their stability or that remove entire rock layers.
For example, the North China Craton lost its deepest root layer millions of years ago.
What makes the discovery of cratonic dripping special, said the researchers, is that it’s happening right now. This allows scientists to observe the cratonic thinning process as it occurs. | |
Submitted at 04-05-2025, 08:09 PM by sleeppoor | |
5 Comments | |
In another twist, a police report said the city-leased vehicle was reported stolen by an unnamed woman – who may be a top deputy. Sheriff Rochelle Bilal and police have both launched internal probes. | |
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A new study suggests instead of releasing waste, the first anal orifice was an exit hatch for male sex cells which was given a new task.
Researchers from the University of Bergen in Norway investigated the genetics of xenacoelomorphs; distant relatives of flatworms that have a cul-de-sac for a gut. Despite this lack of a dedicated poop-hole, xenacoelomorphs use some of the same genes we use to turn our digestive system into a tube, only to create a genital opening known as a gonadopore instead.
"Once a hole is there, you can use it for other things," zoologist Andreas Hejnol told Michael Le Page at New Scientist. | |
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Submitted at 04-01-2025, 03:08 AM by sleeppoor | |
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Researchers have discovered that the underside of the North American continent is dripping away in blobs of rock — and that the remnants of a tectonic plate sinking in the Earth’s mantle may be the reason why.
A paper published in Nature Geoscience describes the phenomenon, which was discovered at The University of Texas at Austin. It’s the first time that “cratonic thinning” may be captured in action.
“We made the observation that there could be something beneath the craton,” said the study’s lead author Junlin Hua, who conducted the research during a postdoctoral fellowship at UT’s Jackson School of Geosciences. “Luckily, we also got the new idea about what drives this thinning.”
Cratons are very old rocks that are part of Earth’s continents. They’re known for their stability and ability to persist for billions of years. But sometimes cratons undergo changes that can affect their stability or that remove entire rock layers.
For example, the North China Craton lost its deepest root layer millions of years ago.
What makes the discovery of cratonic dripping special, said the researchers, is that it’s happening right now. This allows scientists to observe the cratonic thinning process as it occurs.
In another twist, a police report said the city-leased vehicle was reported stolen by an unnamed woman – who may be a top deputy. Sheriff Rochelle Bilal and police have both launched internal probes.
A three-judge panel on the North Carolina Court of Appeals Friday afternoon voted 2-1 in a ruling that puts Republican Jefferson Griffin on the cusp of overturning Democratic incumbent Allison Riggs’ 734-vote lead for a seat on the state Supreme Court.
Preorders won’t start April 9th as originally announced.
The toxic substance, used in dry cleaning and manufacturing, has been linked to a host of serious health problems. A Biden-era ban on the chemical has faced multiple challenges since Trump took office.
Violent policing is not a bug of capitalist societies but a feature. To end our dependence on it, we must first understand its connection to exploitation.
South Korea’s Constitutional Court said that President Yoon Suk-yeol ‘violated’ basic rights by declaring martial law.
An Inquirer investigation found a police accountability crisis in Philadelphia and across Pennsylvania fueling hazardous and unnecessary chases — and disproportionately endangering kids.
President Trump told reporters this week that DOGE chief Elon Musk has done an "amazing" job, but noted that the Tesla CEO has "got a big company to run."
Val Kilmer, star of "Batman Forever" and "Tombstone," has died. He was 65.
A new study suggests instead of releasing waste, the first anal orifice was an exit hatch for male sex cells which was given a new task.
Researchers from the University of Bergen in Norway investigated the genetics of xenacoelomorphs; distant relatives of flatworms that have a cul-de-sac for a gut. Despite this lack of a dedicated poop-hole, xenacoelomorphs use some of the same genes we use to turn our digestive system into a tube, only to create a genital opening known as a gonadopore instead.
"Once a hole is there, you can use it for other things," zoologist Andreas Hejnol told Michael Le Page at New Scientist.
A Boston judge dismissed charges and held an ICE agent in contempt after a defendant was arrested during a trial, accusing ICE and state police of obstructing justice.
Indiana University quietly removes profile of tenured professor and refuses to say why.
The people destroying Teslas should really hear about this: You can now beat up Elon Musk, at a party, in front of guests.
Seoul, Beijing and Tokyo are major U.S. trading partners, although they have been at loggerheads among themselves over issues, including territorial disputes.
Workers on a mission to help colleagues were buried in mass grave in southern Gaza, says humanitarian office
It marks the first time Trump has seriously threatened Russia with consequences for dragging its feet in Ukraine ceasefire negotiations.