Translations:Dictionary:Tripartite array/1/en

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{{#category_index:T|tripartite array}} (trī par’ tīt) A method of determining the apparent surface velocity and direction of propagation of microseisms or earthquake waves by determining the times at which a wave passes three separated, noncolinear points. The recording stations are arranged in a triangle; the spacing should be large enough to measure time differences but small enough that dip changes are small.