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I come across a lot news articles that I want to post, but I dont want to make a new thread every single time something I think is interesting comes up.

Here I will, and you may post little news articles, which I have called [I]Newsettes[/I], that are worth a read, but not a thread.

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Interesting stuff about the mounds:

local paper, ohio section wrote:
[B]Serpent Mound rock samples show evidence of meteorite[/B]
Monday, April 18, 2005

CLEVELAND — Scientists studying recent rock samples taken from beneath an ancient earthen mound are trying to determine what caused unusually high concentrations of a metal rarely seen anywhere but near Earth’s molten core or in asteroids and comets.

Serpent Mound, an earthen snake effigy believed to have been built from about 1000 B.C. to A.D. 200 is about 60 miles east of Cincinnati. Some believe the 1,348-foot-long mound had a religious function for its builders, although nobody knows for sure what philosophy and beliefs shaped its origin because the mound builders left no written records.

Geologists only recently discovered high concentrations of iridium 1,412 feet beneath the mound. The levels of the silver-gray metal, occasionally brought up in lava from volcanoes, measured 10 times beyond what is usually present in the Earth’s crust. Since there are no lava fields in Ohio, some geologists point to the iridium as evidence that the mound sits upon a slightly oblong crater created when a massive extraterrestrial object slammed into Earth.

“I think we can say with authority today that this is an impact from a meteorite,” Mark T. Baranoski, a geologist with the Ohio Department of Natural Resources, said. “It affected the region in a spectacular way.”

Mike Hansen, a retired state geologist who runs an earthquake warning system and teaches at Ohio State University, said there is no doubt that the Serpent Mound area was disturbed by some unknown force. But Hansen thinks the stresses were triggered by natural shifts in the Earth’s crust.

Fine grains of sand taken from beneath the mound appear deformed under a microscope. Around the time the rocks were deformed, Africa was pushing into North America and the Appalachian Mountains range was thrusting up higher than today’s Himalayas, Hansen said. He said a major tectonic event like that could have created the underground chaos at Serpent Mound.

Hansen concedes, however, that the meteorite hypothesis is gaining adherents among geologists.

The object, if it did strike Ohio, would have been gigantic, possibly up to three times larger than the Cleveland Browns Stadium and traveling up to 45,000 mph. The heat, blast and shockwaves from such a crash would have carved a 1,000-foot-deep hole and crushed rocks miles below the five-mile-wide crater.