different between isopach vs isochore

English

iso- + Ancient Greek ????? (pakhús, “thick”) (see pachy-).

isopach (plural isopachs)

(geology) A line on a chart joining parts of a stratigraphic unit that have the same thickness; an isopachous line.

From iso- +? Ancient Greek ???? (kh?ra, “place”).

isochore (plural isochores)

(physics) A line drawn on a pressure / volume / temperature graph through all points having the same value of the volume.
(geology) A contour showing points of equal vertical thickness of strata; equal to an isopach if strata are horizontal.
(genetics) A sequence of DNA that has a reasonably constant proportion of pairs of guanine and cytosine bases, and is rich in genes.

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