There was another massive prehistoric lake where Lake Ontario is today. That one flushed by way of New York city.
Posted on 12/17/2013 7:32:25 AM PST by BenLurkin
The heads of canyons — the parts of gorges created by the downstream waters of a river — can have a variety of shapes. At times, canyon heads can resemble amphitheaters — the heads are curved when seen from above (think Niagara Falls), and the walls of the canyon heads rise straight up vertically.
"Amphitheater-headed canyons are relatively rare on Earth, but they abound on the surface of Mars," Lamb told LiveScience's OurAmazingPlanet
...
Unexpectedly, the researchers discovered the amphitheater-headed canyons of Malad Gorge formed at the same time as the amphitheater-headed Box Canyon, about 11 miles (18 kilometers) to the south — about 46,000 years ago.
These findings, detailed online Dec. 16 in the journal Proceedings of the National Academy of Sciences, suggest these amphitheater-headed canyons were formed by the same flood, "and that this flood must have been truly extraordinary in scale," Lamb said. The research team calculated that the flood was at least 30 feet (9 m) deep, flowing at a rate of at least 330,000 gallons per second (1.25 million liters per second).
(Excerpt) Read more at space.com ...
Why don’t we have “megafloods” today?
global warming...
Most of the world’s large rivers have dams limiting flow into stages. They will slow down the release following a huge storm moving through.
A Good Guess within the article.
No melting ice sheets to create massive ice dams holding back massive lakes.
What are you talking about? We've got ice sheets melting all over the place. Global Warming. Whole South Pole is melting, last I heard.
Earth AND Mars? That was one helluva flood!
Wait until after the next ice age, when the ice dams start to melt and then break, releasing the huge amount of water they held back. While you’re waiting, check your homeowner’s insurance for appropriate megaflood coverage.
Oh... and according to some geologists, you might want to check your home coverage for supervolcanos, like the one under Yellowstone National Park, which is due to blow in the next few millennia, taking out most of the U.S. Of course, being under a kilometer or so of solidified lava might affect your resale value.
My homeowner's insurance has both megaflood and supervolcano coverage. Of course, both are subject to a five billion dollar deductible.
“”and that this flood must have been truly extraordinary in scale,” Lamb said. The research team calculated that the flood was at least 30 feet (9 m) deep, flowing at a rate of at least 330,000 gallons per second (1.25 million liters per second). . . . The amphitheater-headed canyons originated around the same time as the volcanic eruption that led to the creation of the nearby McKinney Butte Basalt. This suggests the catastrophic megaflood that formed them was triggered by lava flows diverting an ancient river.”
The description of The Flood (capitals intentional) in the Bible is very accurate, if only scientists would pay attention to it. These scientists in this article appear to also be ignorant of all the creationist research done at Mt. St. Helens, describing what appears to me to be a very similar result after that volcanic explosion—all of which occurred within a matter of days, not years. (I haven’t viewed the videos below but I have seen others from the Institute of Creation Research.)
www.youtube.com/watch?v=flrhqjN5BHo
www.youtube.com/watch?v=F5JdYhUzT40
www.icr.org/article/mt-st-helens-catastrophism
“Why don’t we have megafloods today?”
Answer: For events occurring on geologic timescales (i.e. in every hundred thousand years or more) we have not experienced it yet in recorded history (which is only ~ 5-7,000 years) but we have proof that these things happen.
That does NOT mean it can’t / won’t happen.
How then did a global flood occur (which would be much bigger?)
A popular postulate is that in the ancient times, the earth’s barometric pressure was 2, or 3 times what we have today. As many people know, when our barometric pressure drops a few inches we get heavy rainstorms as H20 is forced out of suspension in the atmosphere. Imagine that time 1,000. And earthquakes breaking open underground rivers. That’s what the biblical account says occurred.
There is tremendous evidence for a world-wide flood, as improbable as it sounds. BTW, with higher barometric pressure, the ancient huge flying dinosaurs that are too heavy to fly today could easily get enough lift....
To a homeowner in the California housing market in the next millennia, that low deductible might be a good deal, if they haven't slid into the Pacific by then.
And you have to survive them in order to collect.
As I understand it, their origin was water building up under the ice sheets during the Ice Ages.
I saw a documentary that theorised that a huge glacial ice dam busted and created the Grand Canyon.
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