一、引言我们曾经指出,在太平洋表层沉积物中,除一般大洋自然带中的钡以外,还可见到与大洋东南部喷气沉积的金属物质同时形成的非带状含钡量较高的区域。因而发表了许多文章,讨论钡在含金属沉积物中的地球化学特性时,说明钡含量的增加,是由于与主要的金属组分(铁、锰)一起由内生带入的。此外,有些研究者则认为,富钡的含金属沉积物可能是由于金属组分从海水中吸附钡元素而形成。也有人认为是由于生物沉积作用 I. INTRODUCTION We have pointed out that in the surface sediments of the Pacific Ocean, in addition to the barium in the natural oceanic belt of the general ocean, the non-banded barium-containing areas formed simultaneously with the jet-deposited metal substances in the southeastern ocean can be seen. Thus many articles have been published discussing the geochemical characteristics of barium in metal-bearing sediments, indicating that the increase in barium content is due to the endogenous incorporation with the major metal components (iron, manganese). In addition, some researchers believe that the barium-rich metal-rich sediments may be formed by the metal components adsorbing barium from seawater. Some people think that is due to biological deposition