As it trundles around an ancient lakebed on Mars, NASA's Perseverance rover is assembling a one-of-a-kind rock collection. The car-sized explorer is methodically drilling into the Red Planet's surface and pulling out cores ...
Planetary Sciences
Mar 4, 2024
0
17
A new research study describes a previously unknown chemical process for removal of uranium from groundwater. Deep down in the bedrock, in an oxygen-free environment, microbes assist in the process of turning uranium "into ...
Earth Sciences
Apr 21, 2023
0
47
NASA's Perseverance Mars rover has begun exploring an area the science team calls "Yori Pass" near the base of Jezero Crater's ancient river delta. They've been eager to explore the region for several months after spotting ...
Planetary Sciences
Nov 17, 2022
0
354
The trouble with big earthquakes is that their subterranean root systems can lurk for centuries or millennia before building enough energy to explode. Among many places, this is true of the New York City area, where scientists ...
Earth Sciences
Jul 22, 2022
2
8
You can't squeeze water from a rock. But tree roots can—and they're doing it more frequently than scientists previously thought, with a new study finding that bedrock is a regular source of water for trees across the United ...
Earth Sciences
Sep 8, 2021
2
992
Wells located near ancient folds and fractures in the bedrock beneath southeastern Wisconsin are more likely to contain arsenic, a dangerous contaminant in drinking water, according to research just published by the Wisconsin ...
Earth Sciences
Apr 26, 2021
0
63
Researchers who investigated water-filled cracks in the bedrock at a depth of 448 meters outside Oskarshamn in Sweden have found completely new viruses and vibrant bacterial and viral communities. The findings show that viruses ...
Cell & Microbiology
Mar 9, 2021
0
34
Alpine summits at 3,000 to 4,000 m may have been ice free until about 5,900 years ago, just before the lifetime of the Tyrolean Iceman (Oetzi), when new glaciers started to form, according to a study published in Scientific ...
Earth Sciences
Dec 17, 2020
0
9
The bedrock beneath our feet has a reputation as an inhospitable place. In contrast, soil is known to be teeming with life—from microbes to plant roots to bugs.
Earth Sciences
Dec 15, 2020
6
32
A forest's ability to store carbon depends significantly on the bedrock beneath, according to Penn State researchers who studied forest productivity, composition and associated physical characteristics of rocks in the Appalachian ...
Earth Sciences
Jun 10, 2020
0
469
In stratigraphy, bedrock is the native consolidated rock underlying the surface of a terrestrial planet, usually the Earth. Above the bedrock is usually an area of broken and weathered unconsolidated rock in the basal subsoil. The top of the bedrock is known as rockhead and identifying this, via excavations, drilling or geophysical methods, is an important task in most civil engineering projects. Superficial deposits (also known as drift) can be extremely thick, such that the bedrock lies hundreds of metres below the surface.
Bedrock may also experience subsurface weathering at its upper boundary, forming saprolite.
A solid geologic map of an area will usually show the distribution of differing rock types; i.e., rock that would be exposed at the surface if all soil or other superficial deposits were removed.
This text uses material from Wikipedia, licensed under CC BY-SA
