地质找矿论丛2024,Vol.39Issue(1) :65-72.DOI:10.6053/j.issn.1001-1412.2024.01.008

辽宁长山子赤铁矿地质特征及找矿标志

Geological characteristics and prospecting marks of Changshanzi hematite deposit in Liaoning province

刘礼广 曹元 朱婉婷 吕彧 王丽萱
地质找矿论丛2024,Vol.39Issue(1) :65-72.DOI:10.6053/j.issn.1001-1412.2024.01.008

辽宁长山子赤铁矿地质特征及找矿标志

Geological characteristics and prospecting marks of Changshanzi hematite deposit in Liaoning province

刘礼广 1曹元 1朱婉婷 1吕彧 1王丽萱1
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作者信息

  • 1. 辽宁省第六地质大队有限责任公司,辽宁 大连 116200;辽宁地质海上工程勘察院有限责任公司,辽宁 大连 116200
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摘要

本文基于野外地质调查,结合室内样品测试工作,从长山子赤铁矿矿区地质构造、矿床相关的岩石学、矿物学等手段入手,深入研究该矿的矿床地质特征、成因和找矿标志.研究结果表明,长山子赤铁矿赋存于中元古界榆树砬子岩组一段岩层中,由下→上,可分为2个矿带、5层矿体;矿石自然类型为变质赤铁石英砾岩、变质赤铁石英砂砾岩、变质赤铁石英砂岩;矿石组构为变余砾状、砂砾状、砂状变晶结构,块状构造;该矿床属于近岸三角洲浊积变质粗碎屑岩型贫赤铁矿床;榆树砬子组一段为赤铁矿找矿的重要标志.

Abstract

This paper is based on field geological survey,Lab tests,geological structure,petrology and mineralogy to deepen study on geological characteristics,genesis and prospecting marks of Changshanzi hematite deposit.The deposit occurs in the first member of Middle Proterozoic Yushulazi formation.From bottom to top there are two mineralization zones and ore bodies occur in five levels.The metamor-phosed hematite conglomerite ore,metamorphosed hematite-quartz sandy conglomerite and metamor-phosed hematite-quartz sandstone are the three natural iron ore types.The iron ore is of blastopsephitic,sandy psephitic,sandy blast texture and massive structure.The deposit is a metamorphosed near shore Delta turbid sedimentary coarse classic rock type poor hematite deposit.The First member of Yushulazi formation is key prospecting mark.

关键词

长山子铁矿/地质特征/找矿标志/矿床成因/成因类型/辽宁省

Key words

Changshanzi Fe deposit/geological characteristics/prospecting mark/deposit genesis/ge-netic type/Liaoning province

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基金项目

中国地调局项目(DD20221806)

出版年

2024
地质找矿论丛
中钢集团天津地质研究院有限公司

地质找矿论丛

CSTPCD
影响因子:0.546
ISSN:1001-1412
参考文献量18
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