A sort of iron-manganese nodule developing in drowned platform margin
A sort of iron-manganese nodule developing in drowned platform margin作者机构：Nanjing Institute of Geology and Mineral Resources Chinese Academy of Geological Sciences Nanjing 210016 China
出 版 物：《Chinese Science Bulletin》 (科学通报(英文版))
年 卷 期：1999年第44卷第S2期
页 面：34-35页
学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程]
主 题：iron-manganese nodule drowned platform platform margin.
摘 要：A sort of purplish red iron-manganese nodules was found in the Middle Ordovician Guniutan-Miaopu period limestone, Anhui Province. About their formational environment, there are two different viewpoints:Yue thought they were deep-water pelagic deposit and Huang et al. believed they were formed inshallow water tide. We think that these nodules were formed in drowned platform margin belonging to atransitional type between shallow-water and deep-water iron-manganese nodules, and different from shoalwater iron-manganese oolites and pelagic iron-manganese nodules in feature and origin. 1 Palaeogeographic setting of iron-manganese nodules
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