underlain

"We see no correlation between natural gas production wells and earthquakes, but we haven't ruled out injection wells," he said, adding that if production wells were the cause, the earthquakes would be scattered all over the region underlain by the Fayetteville Shale formation and not in just one area.

30 Mysterious Earthquakes Shake Arkansas Towns AP 2011

"We see no correlation between natural gas production wells and earthquakes, but we haven't ruled out injection wells," he said, adding that if production wells were the cause, the earthquakes would be scattered all over the region underlain by the Fayetteville Shale formation and not in just one area.

30 Mysterious Earthquakes Shake Arkansas Towns AP 2011

The topsoil is underlain by glacially deposited gravelly rocks and stones.

TasteCamp 2009: An Interview with Nick Gorevic 2009

It is fed by methane-rich lakes underlain by yedoma (wind blown matter making organic-rich permafrost), with its quickly warming waters largely driving a 500% increase in flaw polynyas (ice-free sea areas in winter) over the ESAS, around the river's mouth, during the last two decades alone.

Nathan Currier: Methane in the Twilight Zone (Third Episode) Nathan Currier 2012

It is partly underlain by a belt of infertile deeply weathered Pleistocene quartz sandy gravels.

Río Plátano Biosphere Reserve, Honduras 2008

Many regions of the world are underlain at depth by highly saline groundwater that has only very limited uses.

Groundwater 2010

With Slovenia efficient (or at least so they seemed until that second half against the USA), Bosnia erratic, Macedonia and Montenegro minnows and Croatia comparatively breezy, it has been left to Serbia to carry forward the legacy of Yugo-neurosis and football culture in which, at moments of crisis, self-doubt tends to suppress the imagination and bring to the surface the cynicism that has always underlain the technical excellence.

World Cup 2010: Serbia battle their own demons 2010

If liberals are to affirm the inclusive principles that have underlain the ethos of so many of Britain's mainstream churches, we have to fight back against fundamentalism, perhaps risking our purity just as have our political cousins.

Liberals must stand together Ian Bradley 2010

The very hard and relatively impermeable sandstones which are highly resistant to erosion are in many areas underlain by much softer shales which erode more easily.

Greater Blue Mountains Area, Australia 2009

The Coast Ranges are gently to steeply sloping low mountains underlain by shale, sandstone, and igneous and volcanic rocks.

California Coastal Range Open Woodland-Shrub-Coniferous Forest - Meadow Province (Bailey) 2009