It was a thick layer of sand on a subsurface of clay.
But to me the possibility of finding life in the subsurface of Mars is very high".
Similar reefs are found in northern England, Germany, and the subsurface of the North Sea.
There is little scientific doubt that the quakes in Oklahoma are being triggered by the injection, miles into the subsurface, of wastewater from oil and gas development.
Although eroded between northwestern South Dakota and southern Illinois, marine outcrops continue southward to the present coastline and continue in the subsurface of the Gulf of Mexico.
In western Canada, flat-lying Devonian rocks are well known in the subsurface of Saskatchewan, and in Alberta they include oil-bearing Devonian reefs.
Because all lunar features are covered by impact debris and no mission has yet visited the interior subsurface of a rille, the true origin of Hadley Rille and other sinuous rilles remains to be elucidated.
Finally, there exist a few defect structures in the subsurface of the workpiece.
Figure 2 represents the cross section of the subsurface of Habiganj gas field, Bangladesh.
Machining operations generate residual stresses in both the surface and subsurface of the workpieces.
Open image in new window Fig. 2 Cross-sectional view of the subsurface of Habiganj gas field, Bangladesh (Imam 2013).
