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blueschist

American  
[bloo-shist] / ˈbluˌʃɪst /

noun

  1. blue schist.


blueschist Scientific  
/ blo̅o̅shĭst′ /
  1. A bluish schist that gets its color from the presence of a sodic amphibolite, glaucophane, or a variety of glaucophane called crossite. Blueschist forms under conditions of high pressure but low temperature, as at the boundaries of converging tectonic plates.


Example Sentences

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See Examples For:

As evidence of the youthfulness of the plate regimen, Dr. Stern points to two classes of rocks: ophiolites and blueschist.

From New York Times Dec. 18, 2018

If you’ve never seen or even heard of blueschist, it’s not surprising.

From Textbooks Jan. 1, 2015

Most blueschist forms in subduction zones, continues to be subducted, turns into eclogite at about 35 km depth, and then eventually sinks deep into the mantle — never to be seen again.

From Textbooks Jan. 1, 2015

Figure 7.18 Franciscan Complex blueschist rock exposed north of San Francisco.

From Textbooks Jan. 1, 2015

“Revised ages of blueschist metamorphism and the youngest pre-thrusting rocks in the San Juan Islands, Washington.”

From Scientific American Mar. 7, 2012

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