Chemical composition of concretions and host bottom sediments from the Kara Sea

During study of distribution of 57 chemical elements in flattened, pellet-shaped, and pipe-like iron-manganese concretions of the Kara Sea it has been found that F2O3 and MnO2...本研究针对喀拉海（Kara Sea）扁平状、颗粒状及管状铁锰结核（iron-manganese concretions）中57种化学元素的分布特征开展探究，结果发现F₂O₃与MnO₂……