stratum

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Related to Rock layer: Geological strata, stratigraphically
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References in periodicals archive ?
Burger collected and analysed samples from the rock layer, and documented the whole process in a fascinating video: Earth turned into a toxic hellscape.
Measurements of displacements of the roof rock layers revealed them to be horizontal, relative displacements continuing at large distances from the longwall face (Drzewiecki, 2000).
Shale oil is extracted from hard rock layers deep underground by heating and distilling.
There is no fixed range of atmospheric pressure applied in fracking; it all depends on the depth and the exact contents of the rock layer being fractured.
The proposal points out that the ban includes the use any technology involving the propagation of fractures in a rock layer caused by the presence of pressurized water or other fluid.
In cases where other liquids don't move in, such as in the North Sea off The Netherlands, the porous rock layer that harbored the oil originally can collapse after extraction, causing slight amounts of land settling (known as "land subsidence") in the rock layer surfaces above, but typically no more than a few tenths of an inch per year.
The bone belonged to a child, possibly aged around six, and came from a rock layer dated to between 30,000 and 48,000 years ago.
As you move up, every higher rock layer is younger than the one below it.
2] would leak into the rock layer immediately above the storage reservoir--not the atmosphere--over 1000 years.
The twisted juniper tree trunks should be set off-center for a windswept effect I cover the soil surface with a fine gravel or crushed pink granite rock layer to reduce water evaporation and give a more natural appearance to the plant environment.
The process is carried out vertically or, more commonly, horizontally to the rock layer, creating new pathways to release gas or it can be used to extend existing channels.
What will be the significance of the Anthropocene rock layer and the ultimate legacy of the human race when, in 230 million years, our star, having completed another galactic year, returns to this quadrant?