论文部分内容阅读
1963年,美国学者开始对大洋底打深钻。根据玛哈尔(Mohole)计划在瓜德罗普岛附近打的深钻纯系研究试验性的。钻孔打了180米,打到中新世沉积物下伏的玄武岩结束。1965年在墨西哥湾的大陆坡开始打石油普查钻,孔深180—550米,穿过了更新世-上新世沉积。1968年开始对整个大洋底系统打构造钻,以便研究大洋的地质构造和地质历史。从格洛曼-赛林格号船上打了几十个孔,只是部分的采取了从洋底面到100—300米深处的岩心。经古生物学鉴定,沉积物的时代为从现在到上侏罗统的齐顿阶。同时研究了大洋深部沉积物中的孔隙水,这是很有意义的。
In 1963, American scholars started to drill deep in the ocean. Deep-drilling purebred studies based on the Mohole plan near Guadeloupe. Borehole hit 180 meters, hit the end of basalts under the Miocene sediments. In 1965, an oil census drill was started on the continental slope of the Gulf of Mexico, 180-550 meters deep through the Pleistocene-Pliocene sediments. The entire ocean floor system was drilled in 1968 to study the geological structure and geological history of the ocean. Dozens of holes were made from the Glouman-Sailinger vessel, but only partially taken from the ocean floor to the depths of 100-300 meters. After paleontological identification, the sediment age is from now to the upper Jurassic order of Chaiton. It is also significant to study the pore water in deep ocean sediments.