“格洛马挑战者”号钻探调查船上的科学家们已完成了一项自在海上打钻以来技术上最难、要求最高的钻井计划之一。他们已获得了自海上采样以来最老的基底和沉积岩。为了完成这项工作,1980年10月20日至12月16日在佛罗里达州以东约300英里海面上的一个重要科研点进行打钻作业,作为国际大洋钻探阶段中深海钻探第76航次的一部分。这次航行在美国德瓦拉大学R.E.Sheridan和加拿大地质调查所F.M.Gradstein的领导 Scientists on the GmoM Challenger survey rig have completed one of the most technically demanding and demanding drilling programs since drilling off the sea. They have the oldest basement and sedimentary rock since the sea was sampled. To accomplish this, a drilling operation was carried out at an important scientific research site on the sea about 300 miles east of Florida from October 20 to December 16, 1980 as part of the 76th Deep Sea Drilling Program at the International Ocean Drilling Phase . The voyage was led by R.E.Sheridan of the University of Davala in the United States and F.M. Gradstein of the Canadian Geological Survey