Sentences with phrase «rocks excavated»

The study, published today in Scientific Reports, suggests that rocks excavated through meteorite impacts may incorrectly suggest a lifeless early Mars, even if indicators of life were originally present.

Scientists suggest signs of life from under Mars» surface may not survive in rocks excavated by some meteorite impacts.

For example, it may be that meteorite impacts of a certain size may not destroy organic compounds or scientists may need to concentrate on rocks excavated from a certain depth.

The study, published in Scientific Reports, suggests that rocks excavated through meteorite impacts may incorrectly suggest a lifeless early Mars, even if indicators of life were originally present.

In a paper published Thursday in Science, researchers report that a 3 - meter - square chunk of rock they excavated contains 16 eggs with the fossilized bones of developing embryos.

Not exact matches

Developing the mine would have required building roads, buildings, and other infrastructure and excavating about 5 million tons of ore - bearing rock.

Material for the Boring Bricks will be taken from the rocks and dirt excavated by the company's tunnel boring machine.

They form when impacts plunge deep below a world's surface, excavating rock that bounces back up in the center before collapsing.

Gale crater, excavated about 3.6 billion years ago into rocks of greater age, provided a window into the Red Planet's primitive crust.

Using several methods, the team dated newly excavated rock and dirt that had accumulated in the same sediment layer as the hominin remains, and discovered that they are between 100,000 and 60,000 years old.

Rocks used as anvils in the experiments incurred damage similar to that observed on the other two excavated stones.

«Excavating plant fossils preserved in rocks deposited during the last days of the dinosaurs, we found some preserved with abundant fossilized charcoal and others without it.

In June a team of paleontologists identified the oldest example of such symmetry in a group of fossils excavated from a 600 - million - year - old rock quarry in southern China.

They landed on nice, hard rock like on Mars or Mercury, exploding on the surface and excavating deep craters.

They knew that humans had been in the area at least 35,000 years ago, the age given to ocher crayons and ocher - smeared stone tools they had excavated from the Leang Burung 2 rock shelter nearby.

Now that the first shovelful of earth has been moved, crews will begin excavating more than 870,000 tons of rock to create the huge underground caverns for the DUNE detector.

Rocks placed over the man's burial were cleared away before excavating the skeleton.

That's one possible conclusion from 50 well - preserved fossils excavated from 520 - million - year - old rocks in southwestern China.

In 2004, a team led by Elizabeth Nicholls of the Royal Tyrrell Museum in Drumheller, Canada, excavated a monstrous ichthyosaur from 210 - million - year - old rocks in British Columbia.

It took more than 15 years to excavate the fragile fossils from the rock.

As archaeologist Chris Clarkson was excavating a rock shelter in northern Australia one day in 2015, May Nango of the aboriginal Mirarr group brought her grandchildren to look at the pit.

«We were not surprised that they excavate rock,» says Russell.

To make a case for the channels, Osborne's team excavated snail fossils buried by half a metre of sand from a channel in Libya and compared their chemical makeup to rocks from volcanoes hundreds of kilometres away.

The dinosaur's remains were excavated from the uppermost level of the Hell Creek rock formation in North and South Dakota.

He and his sons, for example, are excavating the rock and his wife is down in the campsite, splitting the rock, and I think, more than 65,000 specimens made its way back to the Smithsonian — this massive collection.

Bright features such as these are caused by the presence of freshly crushed rock material that was excavated and deposited during the highly energetic collision of a meteoroid with Mercury to form an impact crater.

Both basins are unexpectedly young, roughly 1 to 2 billion years, and their formation substantially reset Vestan geology and excavated enough diverse crust rocks to have created the Vestoids (asteroids with similar spectral characteristics that could be collisional fragments of Vesta) and the Howardite - Eucrite - Diogenite (HED) meteorites.

By a year later, the bones of an almost complete arm and hand had been exposed, though not yet excavated from the rock.

Over a million cubic yards of earth and rock were excavated to make way for the World Trade Center.

The Setup Fossil excavation was a 6 - week class - more of a club, really — in which students excavated a real fossil fish from a soft rock matrix.

Not only does the typical snail have an impressive 12,000 - tooth smile, but those tiny teeth are chewing powerhouses, with enough strength to excavate rock while they snack.

They will excavate, move substrate and rocks, and reinforce it all with web until it is just right.

The first «playground» for your children is the Greek Theater, a masterpiece of acoustics, completely excavated in the rock and one of the largest theatres in the Greek world.

Only a small portion of Coba has been excavated and many of the structures remain hidden in the jungle, overgrown with jungle vegetation, while the ruins that have been partially excavated continue to have trees and plants growing through cracks in the rocks.

Excavate «n» Search the Cheese Rocks 44.

Inside this tomb, he finds a strange small pyramidal rock on a excavated lectern in the rock with a lot of puzzling hieroglyphs.

Causing heartburn for project applicants developing on tribal land, the Tenth Circuit reversed the District Court for the Northern District of Oklahoma's grant of summary judgment and determined that the defendants» large - scale excavation project, involving site modification and the use of excavated rock and soil in the installation of wind turbines, constituted «mining» under federal regulations addressing mineral development on Native... Complete story»

Knowledgeable in the operation of Heavy Equipment, to excavate and move dirt, rock, sand and other materials.