[HJ*2/5]By the synthesis study for three central Pacific ferromanganese crusts (hereinafter for short as crusts) of their biostratigraphy, structure and element geochemistry on the section along their growth directions, it was found that the formation of the crusts concentrate on two different formation stages which were controlled by the different factors. The first formation stage which corresponds to the new layers of these crusts is the stage whose degree of oxidation of their ore-forming environment af...
大洋铁锰结壳是一种层状、水生沉积成因的铁锰氧化物聚集体,它形成于海山或海台的顶部或斜坡的裸露基岩上(Frank,1976;Aplin et al.,1985;武光海等,2001)。对铁锰结壳的大量调查和研究(Glasby et al.,1977;Friedrich et al.,1980;Hein etal.,1985;De Carlo et al.,1987b;Wen et