Sentence examples for beds of limestone from inspiring English sources

Consider a normal stream valley that gradually deepens its channel until it cuts into underlying beds of limestone (or dolomite).

Termed evaporite deposits because they formed by the evaporation of saline water in partially enclosed basins, they characteristically are associated with beds of limestone, dolomite, and shale.

Ideal cyclothem successions are rare, and reconstructions of generalized sequences result from the study of examples in which typical beds of limestone, clastic sediments, or coal seams may be missing.

tani Poorly Fossiliferous Variegated siltstone, micritic sandstone and beds of limestone   Unconformity    Maniyara Fort M. (M).

Underlying the Kimmeridge Clay, are similarly dipping older Jurassic clays, which also contain thin beds of limestone and sandstone.

The shale has eroded away faster than the limestone beds, and as such, has caused thinner beds of limestone between to collapse.

Alternating beds of limestones, sands, and clays dip toward the central Paris Basin, their outcrops forming concentric patterns.

They comprise a series of tunnels and caverns formed by two converging streams in a thick bed of limestone at an elevation of 2,600 ft (800 m) on the western margin of the Blue Mountains.

The overlying thin bed of limestone breccia comprises volcaniclastic and detrital debris and authigenic barite crystals, cemented and commonly replaced by marine calcite.

They pumped nearly 4000 liters of gelled gasoline and sand some 700 meters down a borehole into a thick bed of limestone, in hopes that the pressurized gunk would fracture the rock and release more natural gas.

In addition, thin beds of freshwater limestone and coal seams (called coal measures) are present.