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洪積層 (kousekisou) Japanese meaning: diluvium | Kotomora
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の
化か
石せき
が
発はっ
見けん
さ
れ
て
いる
。
Many fossils have been discovered in the diluvial deposits of this region.
Kanji 積 volume, product (x*y), acreage 層 stratum, social class, layer Related words 更こう 新しん 統とう 更新統 is the modern geological term for Pleistocene strata, while 洪積層 is an older synonym still used in some contexts.
沖ちゅう 積せき 層そう 沖積層 refers to alluvial deposits (Holocene), contrasting with the older Pleistocene 洪積層.
Etymology From 洪 (flood, vast) + 積 (accumulate) + 層 (stratum), reflecting the early geological concept of a great flood depositing these layers. The term is now largely historical in geology.
