Nonmarine Triassic Sedimentation, Central High Atlas Mountains, Morocco
Nonmarine Triassic Sedimentation, Central High Atlas Mountains, Morocco
复制标题
非海相三叠纪沉积，高阿特拉斯山脉中部，摩洛哥
DOI：
10.1306/212f7108-2b24-11d7-8648000102c1865d
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
A. Mattis
中科院分区：
文献类型：
--
作者：
A. Mattis
ABSTRACT A maximum of 1,000 m of Triassic rock exposed in the Central High Atlas Mountains of Morocco consists of mudstone, siltstone, sandstone, and conglomerate red beds containing intercalated basalt flows in the upper part of the stratigraphic section. The thickest accumulation of sediment was in northeasterly trending elongate basins, in which the principal direction of sediment transport was northeastward along the axes. Compositional data indicate that the Triassic red beds are mostly multi-cycle sediments, derived from local sources, and composed largely of detritus reworked from lower Paleozoic strata exposed in the nearby uplands. The sediment was deposited in a nonmarine environment by alluvial processes. Lacustrine and playa conditions were locally present. This nonmarine depositio ended when marine waters transgressed into the basins during Liassic time.
