红海深海沉积物与礁前碳酸盐的地层对比——盆地分析的一种重要线索

• 作 者: Thomas C.Brachert 李浩
• 出 处: 海洋地质译丛
• 发表日期: 1991年03期
• 关键词: 地层对比 盆地分析 泥晶灰岩 深海沉积物 碳酸盐含量 古海洋学 堡礁 海槛 翼足目 浮游有孔虫

引言红海气候与现代海洋环境是由这个温带海洋被一个沙漠所环抱的事实所限定。水体交换只能通过南部的狭窄的曼德海进行。这个浅海海槛的实际水深约为-140m(Morcos,1970)。更新世期间的海平面被动造成了表层水和底层水条件的明显变化。前人对红海古海洋学的研究已经证实了这一事实。Herman(1968)等描述了浮游有孔虫对这些变化的响应。此后Chen(1969)等利用翼足目动物再度证实了气候的变化。研究稳定同位素的变化

Introduction The Red Sea climate and the modern marine environment are defined by the fact that this temperate ocean is surrounded by a desert. Water exchange can only be carried out through the narrow Mandh Sea in the south. The actual depth of the shallow sea sill is about -140 m (Morcos, 1970). Passive sea level during the Pleistocene resulted in significant changes in surface and bottom water conditions. Previous studies of ancient Paleochology in the Red Sea have confirmed this fact. Herman (1968) et al. Described the response of planktonic foraminifera to these changes. Since then, Chen et al. (1969) used wing-footed animals to confirm climate change again. Study of stable isotope changes