海底热液和海水混合时磷与氢氧化铁的共同沉积按现代的概念，海底热液是很多化学元素（其中包括铁）以溶解形态进入海洋的主要源泉之一。不考虑在河—海边界上的损失，河流每年输入海洋１９０万ｔ溶解铁，而与海底热液一起进入海洋的铁，每年有５７万ｔ，为河流输入量的３... Co-deposition of Phosphorus and Iron Hydroxide When Seabed Hydrothermal and Seawater Mixes By the modern concept, seabed hydrothermal fluids are one of the major sources of chemical elements (including iron) entering the ocean in dissolved form. Regardless of the loss on the river-sea border, the river annually imports 1.9 million tonnes of dissolved iron from the oceans, while the iron entering the oceans together with the seabed hydrothermal fluids produces 570,000 tonnes of river input each year.