A progressive diminution in the lateral extent of sedimentary deposits in passing upwards from older to younger strata, so that each stratum leaves…
单词 | θ4744 |
释义 | the world > the earth > structure of the earth > structural features > sedimentary formation > [noun] > stratum > position or direction of strata > offlap or onlap (2) offlap1913 A progressive diminution in the lateral extent of sedimentary deposits in passing upwards from older to younger strata, so that each stratum leaves… onlap1947 A progressive increase in the lateral extent of conformable strata in passing upwards from older to younger strata, so that each stratum is hidden… |
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