CAJ | 학술논문

本文简要叙述了关岭县新铺地区晚三叠世瓦窑组下部含锰层位及其铁锰结核产出的地质背景和宏观特征，并较详细地论述它的地球化学特征。认为该铁锰结核有别于现代大洋沉积的铁锰结核或铁锰结壳，是Mn和Fe含量中等、Mn∶Fe＞1、富LREE、贫多金属的复合成因铁锰结核，可能是早期热水成因的铁锰沉积物经后期风化淋滤作用而成的。
본문간요서술료관령현신포지구만삼첩세와요조하부함맹층위급기철맹결핵산출적지질배경화굉관특정，병교상세지논술타적지구화학특정。인위해철맹결핵유별우현대대양침적적철맹결핵혹철맹결각，시Mn화Fe함량중등、Mn∶Fe＞1、부LREE、빈다금속적복합성인철맹결핵，가능시조기열수성인적철맹침적물경후기풍화림려작용이성적。
This paper briefly deals with geological setting and macro－characteristic of Mn－bearing sediments and occurrence of ferromanganese nodule at the lower part in Wayaobao formation of upper Triassic in Xinpu district of Guanlin county of Guizhou, comparatively gives full details of its geochemical characteristic. It is su－gested that this kind of ferromanganese nodule differs from manganese nodule or ferromanganese nodule crust deposited in modern ocean. As ferromanganese nodule of compound origin contains Mn and Fe in medium scale, Mn:Fe>1, rich LREE and poor multi－metals, it would be a Fe－Mn sediments of lower thermal water origin that forms in the late weather eluviation.