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Keyword: chicxulub

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  • (Many photos!) Scientists find fossil from THE DAY the dinosaurs died 66m years ago: Leg of Thescelosaurus was 'ripped off in aftermath' of huge asteroid strike

    04/07/2022 7:40:41 AM PDT · by dennisw · 73 replies
    FOR MAILONLINE ^ | 7 April 2022 | SOPHIE CURTIS and JONATHAN CHADWICK
    Scientists find fossil from THE DAY the dinosaurs died 66m years ago: Leg of Thescelosaurus was 'ripped off in aftermath' of huge asteroid strike that wiped out most species on Earth Dinosaurs were wiped out by the Chicxulub event - a plummeting asteroid that hit Earth 66 million years ago The asteroid more than six miles in diameter slammed into what is now Mexico, leaving a 93-mile wide crater Experts found the fossilised leg of a dinosaur killed and what appears to be a fragment of the asteroid itself Findings were made at Tanis, a renowned paleontological site in North...
  • We don’t Know Exactly When the Dinosaurs Died, but Now We Know it was in the Springtime

    02/24/2022 11:45:38 PM PST · by LibWhacker · 68 replies
    Universe Today ^ | 2/23/2022 | NANCY ATKINSON
    We’ve long known a disaster took place about 66 million years ago, where in a geological instant, 75% of the plants and animals on Earth were wiped out, including all the land-roaming dinosaurs. But here’s a new detail about that event: Even though we can’t pinpoint exactly what year this disaster took place, we now know it happened during the springtime. Most scientists agree the disaster was an asteroid impact, where an asteroid at least 10 kilometers wide struck the Chicxulub region in the present-day Yucatán Peninsula in Mexico. The impact released 2 million times more energy than the most...
  • Dinosaur killer may have struck oil

    05/08/2008 12:11:16 PM PDT · by Berlin_Freeper · 45 replies · 177+ views
    Australian Broadcasting Corporation ^ | May 07, 2008 | Larry O'Hanlon
    The dinosaur-killing Chicxulub meteor might have ignited an oilfield rather than forests when it slammed into the Gulf of Mexico 65 million years ago, say geologists. Smoke-related particles found in sediments formed at the time of the impact are strikingly similar to those created by modern high-temperature coal and oil burning, as opposed to forest fires, says Professor Simon Brassell of Indiana University. He and colleagues from Italy and the UK publish their report on the discovery in the May issue of the journal Geology. ...What he and his colleagues have found instead are particles called cenospheres, which resemble the...
  • Origin of dinosaur-ending asteroid possibly found. And it's dark.

    08/09/2021 12:17:03 PM PDT · by Red Badger · 65 replies
    https://www.livescience.com ^ | AUGUST 9, 2021 | By Mara Johnson-Groh
    About 66 million years ago, an estimated 6-mile-wide (9.6 kilometers) object slammed into Earth, triggering a cataclysmic series of events that resulted in the demise of non-avian dinosaurs. Now, scientists think they know where that object came from. According to new research, the impact was caused by a giant dark primitive asteroid from the outer reaches of the solar system's main asteroid belt, situated between Mars and Jupiter. This region is home to many dark asteroids — space rocks with a chemical makeup that makes them appear darker (reflecting very little light) compared with other types of asteroids. "I had...
  • The Comet –“That Forever Changed Planet Earth”

    02/15/2021 12:45:29 PM PST · by LibWhacker · 16 replies
    The Daily Galaxy ^ | 2/15/2021
    The Comet –“That Forever Changed Planet Earth” Posted on Feb 15, 2021 in Astronomy, Evolution, Science“It must have been an amazing sight, but we don’t want to see that again,” said Harvard astrophysicist, Avi Loeb about the comet that created the the Chicxulub crater off the coast of Mexico that spans 93 miles and runs 12 miles deep that forever changed Earth’s evolutionary history when it crashed 66 million years ago.The Scene at ImpactThe scene of the massive impact that brought the reign of the dinosaurs to an abrupt and calamitous end by triggering their sudden mass extinction, along with...
  • Paleontologists Say Gigantic Dinosaur Bones Could Be From Largest Land Animal Ever To Walk The Earth

    01/25/2021 11:17:46 AM PST · by Red Badger · 99 replies
    https://www.dailywire.com ^ | By Joseph Curl • Jan 25, 2021
    "It's obviously still inside the rock, so we have a few more years of digging ahead of us." Paleontologists in Argentina have discovered the fossilized remains of a 98 million-year-old titanosaur that they say may be from the largest animal ever to walk the earth. A team of researchers with Naturales y Museo, Universidad de Zaragoza, and Universidad Nacional del Comahue actually found the remains in 2012, but excavation work only began in 2015, according to paleontologist Jose Luis Carballido of the Museo Egidio Feruglio. In a new report published in the journal Cretaceous Research, the group lays out what...
  • Asteroid that wiped out the dinosaurs 66 million years ago crashed into Earth at 'the deadliest possible angle' of 60 degrees which maximized production of greenhouse gases

    05/26/2020 11:45:21 AM PDT · by Olog-hai · 72 replies
    Daily Mail (UK) ^ | 11:45 EDT, 26 May 2020 | Ian Randall
    The asteroid that wiped out the dinosaurs around 66 million years ago crashed into Earth at “the deadliest possible angle”, researchers have concluded. The giant impacter struck what is today Mexico’s Yucatán Peninsula at around 60 degrees — maximizing the production of climate-altering greenhouse gases. The global disaster caused by the space rock — which was bigger than Mount Everest — was far worse than once thought, Imperial College London experts said. Previous studies had suggested the asteroid came in at an angle of around 30 degrees, while others concluded that it crashed almost straight down. However, the team’s computer...
  • After the Dinosaur-Killing Impact, Soot Played a Remarkable Role in Extinction

    04/28/2020 6:31:27 AM PDT · by rktman · 62 replies
    smithsonianmag.com ^ | 4/27/2020 | Noah Taylor Redd
    The interstellar object (alternatively a comet or an asteroid) that killed the dinosaurs when it slammed into Earth didn't work alone. Researchers have shown previously that its after-effects, such as tidal waves and earthquakes, played an important role in the mass extinctions of three-fourths of plant and animal life. Now, new research suggests that one of the most important factors was the soot-rich smoke from fires sparked by the collision. Clay Tabor, a geoscientist at the University of Connecticut, and his colleagues studied soot, sulfates and dust to see how each type of particle may have contributed to the cataclysm....
  • Dinosaurs faced global warming, elevated mercury levels, fossil shells show

    12/17/2019 11:15:00 AM PST · by Oldeconomybuyer · 33 replies
    UPI ^ | December 16, 2019 | ByBrooks Hays
    Scientists have been trying to figure out what killed off the dinosaurs for decades. Most agree the asteroid or comet that struck the Yucatan Peninsula some 66 million years ago, the Chicxulub meteorite, played a significant role in snuffing them out, but the significance of the Deccan Traps eruptions has puzzled scientists. Now, new research -- published Monday -- suggests the volcanic activity had a significant impact on Earth's climate, and perhaps, on the dinosaurs, too. "For the first time, we can provide insights into the distinct climatic and environmental impacts of Deccan Traps volcanism by analyzing a single material,"...
  • ‘Something is weird’: Incredible dinosaur graveyard raising eyebrows in the paleontology world

    04/06/2019 9:49:14 AM PDT · by BenLurkin · 28 replies
    Dr. Stephen Brusatte, a Palaeontologist at University of Edinburgh and author of The Rise and Fall of the Dinosaurs, is among those that have questions around the extraordinary claims made by the team that have... ... said he was “very excited about this discovery” but noted aside from a single partial dinosaur hip bone mentioned in the paper, ideas of a dinosaur graveyard being reported in the media lack any real evidence so far. “The New Yorker article reports a dinosaur graveyard with bones of many types of dinosaurs, along with feathers, eggs, and even embryos,” he said. “I’m afraid...
  • A seismically induced onshore surge deposit at the KPg boundary, North Dakota

    04/04/2019 8:16:25 AM PDT · by centurion316 · 24 replies
    Proceedings of the National Academy of Sciences ^ | April 1, 2019 | Robert A. DePalma
    The most immediate effects of the terminal-Cretaceous Chicxulub impact, essential to understanding the global-scale environmental and biotic collapses that mark the Cretaceous–Paleogene extinction, are poorly resolved despite extensive previous work. Here, we help to resolve this by describing a rapidly emplaced, high-energy onshore surge deposit from the terrestrial Hell Creek Formation in Montana. Associated ejecta and a cap of iridium-rich impactite reveal that its emplacement coincided with the Chicxulub event. Acipenseriform fish, densely packed in the deposit, contain ejecta spherules in their gills and were buried by an inland-directed surge that inundated a deeply incised river channel before accretion of...
  • Dinosaur fossils kept secret for years show the day of killer asteroid

    04/01/2019 7:03:20 AM PDT · by ETL · 65 replies
    FoxNews.com ^ | April 1, 2019 | Chris Ciaccia | Fox News
    The researchers say they found evidence in North Dakota of the asteroid hit in Mexico, including fish with hot glass in their gills from flaming debris that showered back down on Earth. They also reported the discovery of charred trees, evidence of an inland tsunami and melted amber. Additionally, University of Amsterdam professor Jan Smit said he and his colleagues found footsteps from dinosaurs moments before they met their untimely death. Smit said the footprints — one from a plant-eating hadrosaur and the other of a meat eater, maybe a small Tyrannosaurus Rex — is "definite proof that the dinosaurs...
  • 66 million-year-old deathbed linked to dinosaur-killing meteor

    03/29/2019 10:25:37 PM PDT · by LibWhacker · 64 replies
    UC Berkeley News ^ | 3/29/19 | Robert Sanders
    66 million-year-old deathbed linked to dinosaur-killing meteor By Robert Sanders, Media relations| March 29, 2019March 29, 2019 Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to email this to a friend (Opens in new window)Click to print (Opens in new window) A meteor impact 66 million years ago generated a tsunami-like wave in an inland sea that killed and buried fish, mammals, insects and a dinosaur, the first victims of Earth’s last mass extinction event. The death scene from within an hour of...
  • Asteroids have been crushing Earth for nearly 300 million years and no one knows why

    01/18/2019 10:41:27 AM PST · by EdnaMode · 67 replies
    Fox News ^ | January 18, 2019 | Chris Ciaccia
    Asteroids have been hitting the Earth for nearly 1 billion years, but the atmosphere has largely shielded the planet from some catastrophic events. However, some space rocks make their way through — including the one that wiped out the dinosaurs. But a new study notes that, over the past 290 million years, asteroids have been impacting the Earth at triple the rate they were previously and scientists aren't sure why. After looking at 1 billion years' worth of asteroid impacts on both the Earth and Moon, researchers found that dinosaurs' fate was perhaps an inevitability.
  • New Seafloor Map Reveals How Strange the Gulf of Mexico Is

    05/27/2017 6:13:31 AM PDT · by BenLurkin · 39 replies
    nationalgeographic.com ^ | 05/26/2017 | Betsy Mason
    The floor of the Gulf of Mexico is one of the most geologically interesting stretches of the Earth’s surface. The gulf’s peculiar history gave rise to a landscape riddled with domes, pockmarks, canyons, faults, and channels — all revealed in more detail than ever before by a new 1.4 billion-pixel map. This striking view of the ocean floor off the coasts of Louisiana and Texas was created by a government agency you’ve likely never heard of called the Bureau of Ocean Energy Management (BOEM). The bureau’s job is to manage exploration and development of the country’s offshore mineral and energy...
  • Amazon River Once Flowed in Opposite Direction

    10/24/2006 9:54:37 PM PDT · by SunkenCiv · 36 replies · 505+ views
    PhysOrg ^ | October 24, 2006 | University of North Carolina at Chapel Hill
    Russell Mapes, a graduate student from Grass Valley, Calif., ...explains that these sediments of eastern origin were washed down from a highland area that formed in the Cretaceous Period, between 65 million and 145 million years ago, when the South American and African tectonic plates separated and passed each other. That highland tilted the river's flow westward, sending sediment as old as 2 billion years toward the center of the continent. A relatively low ridge, called the Purus Arch, which still exists, rose in the middle of the continent, running north and south, dividing the Amazon's flow - eastward toward...
  • We Finally Know How Much the Dino-Killing Asteroid Reshaped Earth

    03/22/2016 10:32:51 AM PDT · by JimSEA · 60 replies
    Smithsonian ^ | 2/25/2016 | Jane Palmer
    More than 65 million years ago, a six-mile wide asteroid smashed into Mexico's Yucatán peninsula, triggering earthquakes, tsunamis and an explosion of debris that blanketed the Earth in layers of dust and sediment. Now analysis of commercial oil drilling data—denied to the academic community until recently—offers the first detailed look at how the Chicxulub impact reshaped the Gulf of Mexico. Figuring out what happened after these types of impacts gives researchers a better idea of how they redistribute geological material around the world. It also gives scientists an idea of what to expect if another such impact were to occur...
  • Did a Planetary Society citizen scientist help find one of Earth’s biggest impact craters?

    07/03/2017 12:22:01 AM PDT · by LibWhacker · 18 replies
    Planetary Society ^ | 6/12/17 | Jason Davis
    Did a Planetary Society citizen scientist help find one of Earth’s biggest impact craters? About 66 million years ago, a 10-kilometer-wide hunk of rock smashed into Earth near what is now Mexico's Yucatán Peninsula.The impact created a global dust cloud that snuffed out the sunlight, leading to the demise of 80 percent of Earth's plants and animals—including most of the dinosaurs. A 200-kilometer-wide crater buried near the city of Chicxulub is all that's left. It's ground zero for one of the world's most notable extinction events.But throughout Earth's history, there have actually been five major extinction events. The largest of...
  • Asteroid strike made 'instant Himalayas'

    11/18/2016 9:20:25 PM PST · by MtnClimber · 30 replies
    BBC ^ | 18 Nov, 2916 | Jonathan Amos BBC Science Correspondent
    Scientists say they can now describe in detail how the asteroid that wiped out the dinosaurs produced its huge crater. The reconstruction of the event 66 million years ago was made possible by drilling into the remnant bowl and analysing its rocks. These show how the space impactor made the hard surface of the planet slosh back and forth like a fluid. At one stage, a mountain higher than Everest was thrown up before collapsing back into a smaller range of peaks. "And this all happens on the scale of minutes, which is quite amazing," Prof Joanna Morgan from Imperial...
  • The asteroid that killed the dinosaurs almost got us, too

    06/29/2016 10:26:05 PM PDT · by Utilizer · 30 replies
    THE WEEK ^ | June 28, 2016 | Joshua A. Krisch
    The age of the dinosaurs ended 66 million years ago, when an asteroid six miles in diameter crashed into what is now southeastern Mexico. The world went up in flames. Dinosaurs, along with the massive reptiles that ruled the sea and the sky, perished as forest fires raged across the globe, dust blotted out the sun, and Earth experienced intense heat, frigid cooling, and then more heat. Conventional wisdom states that mammalian diversity emerged from the ashes of the mass extinction, ultimately giving rise to our own humble species. But according to a study in the Journal of Evolutionary Biology,...