Sentence examples for older layers from inspiring English sources

There are corners of the mine, meanwhile, where you can see even older layers of history.

And the excavators can only guess at what may lie in older layers.

A composite sill is composed of more than one rock type positioned between older layers of rock during more than one intrusive episode.

"We have to do much more work and we need more information about the older layers in Africa, which we are trying to find in Libya now," he said.

The most recent layers are thick and airy, while the older layers are thin and dense, which means that to drill down through the ice is to descend backward in time, at first gradually and then much more rapidly.

"The layers are tilted in the Grand Canyon due to plate tectonics, so it's typical to see older layers be more deformed and more rotated than the ones above them," Grotzinger said.

On this particular day, conditions were close to ideal — four inches or so of fresh snow atop a firm, older layer.

The older layer is that of Logudorese in the central mountains, which reflects an isolation (probably from the 1st century bce) produced by the repeated upheavals of the tribes living there.

Where geological sediments are bent into an arch, the boundary at the top between an older layer (the "ancient mountain") and a newer one can trap oil the "precious fruits".

The lower and older layer is the Catskill Formation, which is composed of red shale and siltstone up to 370 million years old.

Because the Trinil thighbone looks very much like that of a modern human, it might have been a "reworked fossil", that is, a relatively young fossil that was deposited into an older layer after its own layer had been eroded.