鲁西地区下古生界竹叶石灰岩的沉积特征

DEPOPOSITIONAL CHARACTERISTIC OF FLAT-PEBBLE LIMESTONES ON THE LOWER PALEOZOIC OF WEST SHANDONG PROVINCE

摘要:

鲁西地区下古生界中的竹叶石灰岩发育，且主要分布在上寒武统中。据竹叶的排列方式，可将其分为三类，即菊花状、迭瓦状和平行状竹叶石灰岩。它们分别由风暴流以悬浮、跳跃和滚动的方式搬运沉积而形成，并在纵向和横向上构成不同的沉积序列。

Abstract:

lat pebble limestones are well developed in the Lower Paleozoic of West Shandong Province,and are most abundant in the Upper Cambrian。 According to the arrangement of flat-pebbles,the flat-pebble limestones can be divided into three types clustered flat-pebble limestones,imbricated flat-pebble limestones,and parallel flat-pebble limestones。 They were deposited by storm curtents:the clustered , imbricated,and parallel flat-pebble limestones were formed by deposition of flat-pebbles transported through suspe...