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leaverite

leaverite  n.— «“It’s ’leaverite,'” says Smith of one specimen: “Leave ‘er right there.” But after a few more pans of sand the kids hit paydirt.» —“A Madness for Moonstones” by Anne H...

whoop-de-do

whoop-de-do  n.— «They will race about 100 yards before funneling into a tight turn, followed by five jumps, a water hazard, mud pit, several sand traps and dozens of “whoop-de-do” cross-grain ruts.» —“45,000 To Watch...

whoop de doo

whoop de doo  n.— «On the second day, we encountered 29 km of whoop-de-doos. For those unfamiliar with dirt bike vernacular, picture the harshest mogul run you’ve ever seen, lay it out horizontally, throw in some sand and you have whoops...

stringer sand

stringer sand  n.— «After drilling to 14,280 feet, we reached what is known as a stringer sand as well as a drilling break. A stringer sand is one that has evidence of oil in the sand. A “drilling break” is defined as...

schmutzdecke

schmutzdecke  n.— «This type of filter works because of a biological microbe named schmutzdecke. It grows on top of the sand and its job is to eat organisms in the water. It can take up to two weeks to form so any water before that is not...

schmutzdecke

schmutzdecke  n.— «This system, introduced into the U.S. in 1872, uses low water flow rates (0.05 gpm/sq ft) and relies on the formation of a “schmutzdecke” (a fine, mud-like layer) in the top surface of the fine sand (specific...

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