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(ˈaɪsəʊˌpæk) or


(Geological Science) geology a line on a map connecting points below which a particular rock stratum has the same thickness
[C20: from iso- + Greek pakhus thick, pakhutēs thickness]


(ˈaɪ səˌpæk)

a line drawn on a map connecting all points of equal thickness of a particular geologic formation.
[1915–20; iso- + -pach < Greek páchos thickness]
i`so•pach′ous, adj.
References in periodicals archive ?
However, this model would not account for the Eastwards, gradual, heterochronous sinking of the area, the radial flow pattern (imbrications) of the Genna Selole Fm from well-defined areas, or the paleomorphology of the highs and lows evidenced by the Genna Selole Fm isopachs (Figs.
Map also shows Ignimbrite distribution and tephra isopachs for a M = 8.
Do plan maps show the limits of mineralization and alteration and/or isopachs of mineralization?
Model output can include geological cross sections and isopach maps, as well as grade and tonnage estimates.
The quantity of the oil shale seam could be calculated by extracting seam thickness and corresponding areas from the created isopachs using SQL query.
Species transitions, defined here as the serial replacement of one seagrass species by another over time, were evaluated on both a seasonal and annual basis by calculating isopachs (i.
Our oversized map shows geology, infrastructure and drilling activity details, such as isopachs, gas pipelines, public lands, county and play-area boundaries.
From the compiled data, they constructed variograms taking into account grades and thicknesses, 1:2500 isopachs for wacke thicknesses and top of wacke to basement distances, a 1:10,000 structural map of the basement unconformity, cross sections for the projects division group, and statistical analyses.
The area of the different isopachs was estimated using a planimeter and the average thickness was measured from the pits included in the isopach.