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研究沉积岩中分散元素在地史上的演化,对于认识沉积岩的形成条件、恢复岩相古地理以及指导寻找沉积矿产具有重要的理论和实际意义。目前,该项研究课题已引起沉积岩地球化学工作者的重视,并成为主要的研究内容之一。作者基于上述目的,研究了中生代各时期沉积岩中钒、钴、镍、铜、铅、锶、钡、铬等微量元素的分布。文中所用岩样,全系选自钻井中的岩心。微量元素系光谱定量分析。
Studying the evolution of disperse elements in sedimentary rocks in the history of the earth has important theoretical and practical significance for understanding the formation conditions of sedimentary rocks, restoring the lithofacies paleogeography and guiding the search for sedimentary minerals. At present, the research topic has caused the attention of sedimentary rock geochemists and has become one of the main research contents. Based on the above purpose, the authors studied the distribution of trace elements such as vanadium, cobalt, nickel, copper, lead, strontium, barium and chromium in sedimentary rocks of Mesozoic Era. The rock samples used in this paper are all selected from the cores in drilling wells. Trace Elements Quantitative Quantitative Analysis.