If you want a brilliant treatise on an asteroid hit off the coast of N Carolina, and how it shifted the poles read the book by the German Engineer Otto Muck. The Secret of Atlantis.
ILLUSTRATION BY JOE TUCCIARONE, SCIENCE PHOTO LIBRARY/CORBIS
Published May 12, 2014
The massive asteroid impact that ended the age of dinosaurs some 66 million years ago triggered a decades-long, deadly, global "impact winter," an analysis of ancient sediment confirmed on Monday. (Related: "What Killed Dinosaurs: New Ideas About the Wipeout.")
Sea temperatures dropped as much as 12.6 degrees Fahrenheit (7 degrees Celsius) after the Chicxulub crater blast blanketed the planet in ashy darkness, halting photosynthesis, concludes the team led Johan Vellekoop of Utrecht University in the Netherlands.
Massive hurricanes also struck during the impact winter, according to a report his team published in the Proceedings of the National Academy of Sciences.
Long suspected and now confirmed, the long-ago global winter has been seen as playing a major role in the mass extinction that followed the asteroid's impact in what is today Mexico's Yucatan. All dinosaurs—with the exception of birds—along with many marine reptiles and plant species, disappeared in the ancient calamity.
Volcanoes, wildfires, and tsunamis also added to the impact's deadly effects, with the catastrophe playing out over a century, according to the analysis.
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With all the latest advances in technology it would probably be possible to spot an asteroid on a collision course with our planet. But, the question is, would we be able to prevent an impact?
this article isnt the only good theory:
I see no other theory that makes any sense.
I do have a question: An asteroid of that size, hitting our planet with such a violent impact, could this have effected our orbit around the sun? Could we have been pushed out of orbit a bit effecting our temperature? Could our hours of daylight been effected. So many things are connected when it comes to our climate. We are but a blip in time.....we have almost our earth in a blink of an eye.
As a volunteer at our natural history museum this information is invaluable for me and for our visitors. Thanks.
It sometimes feels as if you are listining in on my classroom! At LEAST once or twice a week we will discuss a topic, and bam, the next day you have an article about it! Thanks National Geographic you add fun to my class discussions on a weekly basis :)
@David Surace Not likely.
Breeding the remaining northern white rhinoceroses with their cousins may preserve some of their genes, scientists say.
A steady trickle of water is bringing wildlife back to a few parts of the Colorado River Delta.
After his death, Michel du Cille leaves a legacy of work distinguished by his ability to connect with his subjects.
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