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The dinosaurs may have been poisoned, before they became extinct, study finds

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Before the asteroid-linked extinction of the dinosaurs were already struggling to survive, as a result of a sharp rise in mercury levels is caused by a massive volcanic eruption, according to a new study.

The researchers looked at the fossil marine mollusc shells from all over the world. The investigators found “what appears to be from a global signal of either an abrupt ocean warming, and markedly elevated concentrations of mercury” caused by the mass of the eruption of the Deccan Traps in India, according to a statement released with the study.

“For the first time, we can give an insight into the various climatic and environmental effects of Deccan Traps volcanism, through the analysis of a single material,” said Kyle Meyer, the lead author of the new study, in a statement. “It was very, very surprised to see that it is exactly the same samples, where the marine temperatures showed a sudden warming of the earth’s signal is even exhibited the highest concentrations of mercury, and that concentrations were of the same order of magnitude on a site of a major, modern industrial mercury pollution.”

Before the asteroid-linked extinction of the dinosaurs were already struggling to survive, as a result of a sharp rise in mercury levels is caused by a massive volcanic eruption, according to a new study.
(Esteban De Armas/Shutterstock)

MINUTE-BY-MINUTE-TO-MINUTE ACCOUNTS OF THE NATURAL DISASTER THAT WIPED OUT THE DINOSAURS, DESTROYED THE EARTH

The study, which was published in the scientific journal Nature Communications.

The level of the mercury in the old shells was similar to that of the fresh-water clamshells, the researchers were able to collect Virginia’s Southern River contaminated site. The study’s co-author, Sierra Petersen, he said there is a fishing ban due to high levels of mercury.

“Mercury anomalies were recorded in the sediments, but never in the shell,” Petersen added. “The ability to reconstruct both the climate and the volcanic activity indicator in the exact the same materials that helps us to bypass many of the problems associated with the relative date. So, the big news in this study, the technical proof-of-concept.”

Mercury is a highly toxic metal, which will not only result in significant health problems in humans, but the fish and wildlife as well. Volcanic eruptions are the world’s largest producer of naturally-occurring mercury. The fossil shells, which contain mercury, are giving new credence to the idea that mercury toxicity can have a negative effect on the war.

AN ASTEROID THAT EXTINCTED THE DINOSAURS TURNED OCEANS INTO ACIDIC, ALARMING STUDY SAYS

The new study sheds light on both the timing and the scale of the Deccan Traps and explosions, as well as a direct link to how the climate has responded–“a major,” said the authors.

The mass of the eruption of the Deccan Traps probably occurred a few thousand years before the asteroid of the Chicxulub crater in the Yucatán Peninsula, Mexico, “was, on and off, for almost a million years.” This eruption, which occurred 66 million years ago, are believed to have originated in large part from the west of India.

Researchers continue to learn more about the time of the dinosaur extinctions, including the asteroid itself. According to a study published in October, the asteroid, which the Earth is taken as well as wiped out about 75 percent of all species on the planet, and may be subject to acidification of the earth’s oceans.

An analysis of microscopic carbon-absorbing plankton, called foraminifera, found the evidence of the instant, causes an acidification of the oceans. (Credit: SWNS)

In a separate study, which was published in January, another theory is that the impact of the space rock was a worldwide tsunami that is more than 5,000 feet up in the air.

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