Molasses

Japanese: モラッセ

Originally, it was the name of a stratum consisting mainly of Tertiary conglomerate and sandstone found on the northern side of the European Alps and in the intermountain areas, but it later became the general name for strata of various eras in various places with the same characteristics. The lithology changes drastically from shallow marine to terrestrial. With the development of geosyncline-orogeny theory, these strata were formed when the fore-edge depressions and intermontane basins of mountain ranges were filled with clastic material caused by the denudation of mountains during the period when geosynclines became mountains (post-orogeny period). They came to be distinguished from the sedimentary layer flysch of the orogenic period, and came to be used as a term to indicate a period of geosyncline-orogeny.
→ Related article Old Red Sandstone | Himalayas [Mountain Range]

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

もとはヨーロッパアルプスの北側および山間にみられる主として第三紀の礫(れき)岩，砂岩からなる地層の名称であったが，その後それらと同じ特徴をもつ各地のさまざまな時代の地層に対する一般名となった。浅海成から陸成で岩相変化が激しい。地向斜―造山論の発展とともに，これらは地向斜が山地と化した時期（後造山期）に山脈の前縁凹地および山間盆地を山の削剥(さくはく)による砕屑(さいせつ)物が埋めてできた地層で，造山期の堆積層フリッシュと区別されるようになり，地向斜―造山運動の一時期をしめす言葉としても使われるようになった。
→関連項目旧赤色砂岩｜ヒマラヤ［山脈］

出典　株式会社平凡社百科事典マイペディアについて　情報

<<: Moratin

>>: Morādābād (English spelling)