详细信息
贵州西部地区“玄武岩-古风化壳沉积(堆积)型”铁矿成矿作用与成矿模式 被引量:12
Ore-Forming Role and Its Model of a Sedimentary(Accumulation)Type of Iron Deposits from Basalt-Paleo-Weathering Crust in Western Guizhou
文献类型:期刊文献
中文题名:贵州西部地区“玄武岩-古风化壳沉积(堆积)型”铁矿成矿作用与成矿模式
英文题名:Ore-Forming Role and Its Model of a Sedimentary(Accumulation)Type of Iron Deposits from Basalt-Paleo-Weathering Crust in Western Guizhou
第一作者:刘幼平
机构:[1]贵州理工学院
第一机构:贵州理工学院
年份:2017
卷号:36
期号:4
起止页码:107-112
中文期刊名:地质科技情报
外文期刊名:Geological Science and Technology Information
收录:北大核心:【北大核心2014】;CSCD:【CSCD2017_2018】;
基金:贵州省国土资源厅公益性基础性地质工作项目"贵州省西部地区铁矿成矿规律;控矿因素与成矿预测研究"(2015-21);贵州理工学院教学团队建设项目(2014JXD01)
语种:中文
中文关键词:玄武岩;古风化壳;铁矿;成矿作用;成矿模式;贵州西部
外文关键词:basalt; paleo-weathering crust; iron deposit; pre-formation role; deposits model; western Guizhou
摘要:在阐述了"玄武岩-古风化壳沉积(堆积)型"铁矿的成矿背景和成矿地质特征的基础上,讨论了铁矿的风化、剥蚀、搬运、沉积(堆积)、成岩后期变化、淋滤富集成矿作用,并将成矿过程划分为3期6个阶段,3期分别为:矿源层形成期、含铁岩系形成期、淋滤富集成矿期;6个阶段分别为:峨眉地幔柱上隆-玄武岩浆喷溢阶段、风化蚀顶-玄武岩古风化壳形成阶段、古风化壳沉积物堆积-迁移-沉积-含矿层形成阶段,地壳振荡性升降-暴露-含矿层风化淋滤阶段、含矿层次生富集成矿阶段、含矿层被覆盖保存阶段,从而建立了"玄武岩-古风化壳沉积(堆积)型"铁矿的成矿模式。
On the basis of the metallogenetic setting and metallogenetic geological characteristics of iron deposits from basalt-paleo-weathering crust,this paper discusses the ore-forming role,including weathering,denudation,transportation,deposition or accumulation,late diagenetic change and leaching.A relative process can be divided into 3periods:resource forming,iron-bearing layer formation and leaching-enrichment and 6stages:Emei plume upwelling-basaltic magma eruption,un-roofing-basalt weathering crust formation,accumulation of weathering crust,migration of sedimentary-ore bearing formation,periodicity crust going up and down-leaching enrichment and ore bearing layer in hidden respectively.According to this division,a description model is established at last.
参考文献:
正在载入数据...