Posted on 01/04/2020 10:16:56 PM PST by SunkenCiv
A team of researchers with members from Singapore, the U.S., Thailand and Laos has concluded that the impact point of a meteorite that struck the Earth approximately 790,000 years ago lies buried beneath a volcanic field in southern Laos. In their paper published in Proceedings of the National Academy of Sciences, the group outlines four lines of evidence that point to the Bolaven volcanic field as the likely site of the meteorite strike.
Prior research has shown that approximately 790,000 years ago, a large meteorite (the largest known young meteorite impact) struck Earth in the Eastern Hemisphere. So great was the impact that debris was strewn across a tenth of the entire planet's surface. Scientists know about the impact because of bits of glassy clasts known as tektites have been found in places like Antarctica, Australia and Southeast Asia... the researchers have found evidence that suggests the reason the crater has not been found is that it is hidden beneath a volcanic field -- and they provide four lines of evidence to back up their claim.
...the geochemistry of the tektites in the vicinity of the Bolaven volcanic field -- the researchers claim it implies the presence of basalts at the impact site... geologic mapping and dating of basaltic lavas that existed before and after the time of the impact, which showed a change occurred around the time of the impact... gravity measurements the team took at the Bolaven volcanic field -- they report an anomaly that suggests the presence of a 13- to 17-kilometer crater... an outcrop of crudely layered sandstone and mudstone boulders 10 to 20 kilometers from the Bolaven volcanic field, which appear to have been thrown there by the force of the meteorite striking the ground.
(Excerpt) Read more at phys.org ...
Yes. It was seared into his brain. Seared. SEARED! It was the most searing seared experience that was ever seared into a brain that could be SEARED! Whew* Sorry.., I was seared by that experience.
Map look familiar?
Has anyone seen John F’in Kerry since we took out Soleimani?
an impact +-800k ago would be too long for sink holes. they happen rather naturally from what I understand but a more recent explanation would be that they are like the carolina bays impact craters that are generally linked to the younger dryas impact of 12,000 years ago that killed off the megafauna. https://bit.ly/3008Wu0
Didn’t know of the Carolina Bay impact. The theory I was referring was just that, a theory. But scientists did find The Cichaxalub(sp?) Crater some miles down in the Atlantic Ocean off the Yucatan. I think the thing measures about 130 miles wide. That was huge impact and again, there is a theory that chunks of it may have impact spots in what is present day Florida.
Nice round Lake Okachobie (sp?) maybe?
Yeah, I think that was the area they were talking about. There is a theory that what is present day southern Florida at one time suffered an impact of some kind.
As I said this was a documentary I saw some years ago. Of course now in the age of the internet it would be easy enough to check. It’s just that I’m aware there is a theory that what is now present day southern Florida suffered an impact some time at or around the time of impact that wiped out the dinosaurs. But Earths atmosphere with erosion and changes to the landscapes changes and erodes impact sites.
Dunno, but I have trouble trying to keep Haile Sellassie and Talahassee Lassie straight.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.