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记述了新生代深海冷水碳酸盐泥丘近期的9个重要研究事件;总结了冷水泥丘具有全球海洋(大陆斜坡为主)分布、形态各异、冷水枝状珊瑚构筑泥丘的特点;介绍了冷水泥丘形成的(地质流体渗流和微生物作用)内因及(海底牵引底流作用)外因两种主要观点。对2005年IODP 307航次实施的北大西洋Porcupine Seabight冷水泥丘大洋钻探工作初步成果进行了编译,公布了中国科学家在碳氧同位素方面的初步实验结果。实验结果显示上新世中期以来的2 Ma里冷水碳酸盐泥丘启动和发育过程中存在2次碳氧同位素偏移事件(I和II),碳氧同位素偏移事件I与泥丘的启动相呼应,暗示北大西洋古海洋气候发生巨大变化,可能与北极冰盖极盛有关。
The recent 9 important research events of the Cenozoic deep-sea carbonate fossil mud mound are described. The characteristics of the cold-water mud mound with the distribution of the global ocean (mainly continental slope) The two main viewpoints are the internal cause of formation of cold cement mound (geological fluid seepage and microbial action) and the external cause of (sea bottom traction underflow). A preliminary compilation of preliminary drilling results of the Porcupine Seabight cold-paddy oceanic ocean drilling carried out on the IODP 307 voyage was published in 2005, and the preliminary experimental results of Chinese scientists on carbon and oxygen isotopes were published. The experimental results show that there are two carbon and oxygen isotope deviations (I and II) during the start-up and development of cold-water carbonate mound in 2 Ma since the mid-Pliocene, and the events of carbon and oxygen isotope deviations I and the start of mound Echoes, suggesting a tremendous change in the ancient North Atlantic ocean climate may be related to the Arctic ice sheet is extremely prosperous.