basement rock

basement rock

[′bās·mənt ‚räk]
(building construction)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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COVINGTON Because of recent earthquake activity in the Covington and Douglas area of Garfield County, the Oklahoma Corporation Commission's Oil and Gas Conservation Division has issued a directive for further reductions in oil and gas wastewater disposal well volumes.<br />Under the directive, all average daily volumes of Arbuckle disposal wells within 10 miles of the earthquake activity will be reduced another 20 percent.<br />Further, operators of those wells that have reduced their depth to avoid injecting too close to the basement rock will be required to verify the well's bottom hole plug integrity.<br />The directive applies to 23 active disposal wells.
Within these areas, the isolines with a value of -100 nT indicate the areas of the basin with the greatest thickness of sedimentary rock, thus indicating that the basement rock is deeper.
For basement rock with lower porosity [phi] 0.01, [alpha] ~ 300 [16].
The deep borehole project was proposed to learn how to drill basement rock for nuclear waste storage.
Now, a year after the principals joined together, the indie rock (or "basement rock," as members categorize it) quartet is releasing its debut album, "Basement Life." The recording features gritty guitars, rhythmic percussion and female lead vocals.
In all cases, the exposed basement rock is metasedimentary rock of the McMillan Flowage Formation, occurring as phyllite in Christopher MacLeod Brook, chlorite schist in Baddeck River, and chlorite-muscovite schist in Big Glen Brook and at least two unnamed tributary brooks draining into it.
(863 - 1597 Ohm-m) due to presence of fresh basement rock. While the top layer has resistivity values which varies from 88 to 93 Ohm.m representing the dry clayey sand of superficial deposits
We interpret this response patterns as representing the partly weathered basement rock at the site.
This is followed by a layer of resistivity values of between 299 and 728 ohm-meter which has the composition similar to lateritic clay and lastly the basement rock.
During the early Cambrian, shallow seas repeatedly advanced and retreated across the North American continent, gradually eroding away surface rock to uncover fresh basement rock from within the crust.
The equivalent lithologic units are: the top sandy soil; silty/sandy clay (regolith), weathered transition zone (saprock), partially weathered basement rock with possible fractures and fresh basement rock.