BYLINE: Jul 25, 2019 07:04:00In the mountains of Maryland, a “super lake” has emerged.
It’s a lake with a water table as large as the continental United States, and one that’s so old that its sedimentary layers have been buried.
In the 1960s, researchers noticed a large lake, dubbed Lake Michigan, at a lake in northern Wisconsin, and began searching for signs of past life.
In 1991, the US Geological Survey (USGS) began searching a region of the Grand Canyon that was close to Lake Michigan and discovered deposits of organic matter.
“When we were looking at the sedimentary deposits in Lake Michigan we found that the lake had been there for a million or more years,” said David K. Miller, an associate professor of geology at the University of Minnesota, in Minneapolis.
“It was so large that we didn’t know where it came from.”
Miller and his colleagues used a new technique, called the “biotecture approach,” to look for the lake’s organic material.
The technique allows researchers to analyze a lake’s past without drilling into the sediment, which would be expensive and time-consuming.
Miller and colleagues used the technique to map a large, 2,000-foot-wide lake that has formed at the top of a hill in eastern Michigan.
The lake is about 2,500 years old, and it’s part of the Cascades, the largest mountain range in the continental U.S.
A “super” lake that’s as old as the Grand Staircase-Escalante, Utah, by NASA The team began looking at a different area of the lake to look at whether it might be an old lake or a new one.
Miller said the researchers thought they could make a determination about the lake based on the organic material they found.
But the lake contains layers of organic material that are older than the sediment layers.
“You can’t just look at the bottom of the water column to see the organic matter,” Miller said.
“You have to look underneath it to see it.”
Miller said there’s nothing in the lake that could be a new lake.
He said it could be an ancient lake with organic matter that’s older than 2,700 years.
“I would expect that this lake has been around for at least 2,800 years,” Miller told SPACE.com.
“I think there’s probably more.
I would expect it to have been here before 2,200 years.”
Miller’s team used a similar technique to examine the organic materials at the lake bed.
The team found organic matter layers that are 1,000 years old or older than lake sediment.
Miller has published a paper describing the discovery in the journal Geology.
The lake is called Cuillin Mountain Range and it is one the most old bodies of the Great Lakes.
It is so old, in fact, that the sediment is buried in it.
“It’s the oldest lake on Earth,” Miller explained.
“When we’re looking at sedimentary formations, we find a lot of these older sedimentary rocks, and we think, well, they were there thousands of years ago.”
The scientists also found organic material in the sediment.
The scientists believe that this organic material is organic material from a lake that was there before the lake formed.
“This is the first lake that we’ve found that has been buried in sedimentary rock,” Miller added.
“This is really amazing.”
The lake also has a lot in common with another lake that sits about a mile to the south, called Lake Huron.
“The lake has the same kind of sedimentary layer, but it’s buried,” Miller noted.
“We think that there was a lake there before it formed.”
Miller also said that Lake Hurons organic matter has a very similar chemical makeup to the sediment of Lake Michigan.
“They’re both older lakes,” Miller concluded.
“These are very similar lakes, both of which have been around since about 2.5 million years ago, and they both have very similar organic matter and the same organic sediment,” he said.