Many have seen the Manhattan skyline as a geological formation of cliffs, peaks and canyons.
"That's from the Arbuckle," he said, a geological formation under Oklahoma.
The path wound its way through hillsides dotted with clumps of purple and yellow flowers, juniper bushes and a geological formation that looked like melted ice cream.
It sits in the natural gas deposits of northern Mexico that are part of the same geological formation as the natural gas reserves in southern Texas.
It was at the edge of the Great Dyke, a mineral-rich geological formation that extends for some three hundred miles across Zimbabwe.
Gillespie admits it could also be part of a reef, a geological formation or any number of things once lodged into the seabed and now drifted away.
Since 1950, a diorama at the American Museum of Natural History in Manhattan has featured it as a unique geological formation.
Even the bowl-like geological formation known as the Seattle Basin, which underlies the city, appears to have had little impact.
Over the years, the process has taken a heavy toll on the unique geological formation of the salt flats.
Several years ago, the gas companies arrived, part of a sort of rush in Arkansas to drill for gas in a geological formation called the Fayetteville shale.
Then below the surface, we have layer upon layer of geological formation, shifts, fault lines, water sources, connections and cracks throughout.
