辽西地区西灰同低品位磷矿地质特征及成因分析

doi:10.13686/j.cnki.dzyzy.2023.03.002

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摘要辽西西灰同低品位磷矿床位于中生代阜（新）义（县）盆地北西端，矿体为含磷灰石石英闪长质片麻岩，呈层状、似层状展布，P₂O₅含量较低，但较稳定.矿石中矿物成分主要为斜长石、黑云母、角闪石、磷灰石、石英、磁铁矿和辉石.通过对该磷矿床的成矿地质背景、地质特征和矿体特征研究，从成矿物质来源、成矿构造环境、成矿作用等方面进行探讨，初步认为该矿床受太古宙绿岩建造控制，在时间与空间上与火山岩关系密切，成矿阶段可分为初始成矿期、变质成矿期和热液改造期.

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	陈军典
	杨红恩
	李思晋
	尹亮亮
	罗银花
	白昕冉
	楚颖
	周泳君

关键词 ：磷矿, 矿体特征, 成矿作用, 火山岩, 辽宁省

Abstract：The Xihuitong low-grade phosphate deposit in western Liaoning Province is located in the northwest of Mesozoic Fuxin-Yixian basin, with the orebody of apatite-bearing quartz diorite gneiss occurring in stratified and stratiform-like forms, and stable low P₂O₅ content. The main mineral compositions in the ores are plagioclase, biotite, hornblende, apatite, quartz, magnetite and pyroxene. Through the study of metallogenic geological setting, geological characteristics and orebodies of the phosphate deposit, the paper discusses the ore-forming materials, metallogenic tectonic setting, and mineralization. It is preliminarily considered that the deposit is controlled by the Archean greenstone formation, and is closely related to volcanic rocks in time and space. The ore-forming period can be subdivided into initial mineralization, metamorphic mineralization and hydrothermal transformation stages.

Key words： phosphate deposit orebody characteristics metallogenesis volcanic rock Liaoning Province

收稿日期: 2022-09-27

PACS:

P619.2

基金资助:辽宁省国土资源厅省级地质勘查项目"辽宁省阜新蒙古族自治县马牛草沟铁矿普查"（辽国土资项[2015]148号）.

通讯作者: 杨红恩(1975-),女,硕士,工程师,主要从事地质矿产勘查及经济评价工作,通信地址辽宁省沈阳市沈河区青年北大街7号辽宁有色大厦,E-mail//246114513@qq.com E-mail: 246114513@qq.com

作者简介: 陈军典(1985-),男,硕士,正高级工程师,硕士生导师,主要从事矿产普查与勘探、生态环境地质等领域工作,通信地址辽宁省沈阳市皇姑区宁山中路42号羽丰大厦,E-mail//850449274@qq.com

引用本文:

陈军典, 杨红恩, 李思晋, 尹亮亮, 罗银花, 白昕冉, 楚颖, 周泳君. 辽西地区西灰同低品位磷矿地质特征及成因分析[J]. 地质与资源, 2023, 32(3): 261-267.
CHEN Jun-dian, YANG Hong-en, LI Si-jin, YIN Liang-liang, LUO Yin-hua, BAI Xin-ran, CHU Ying, ZHOU Yong-jun. GEOLOGY AND GENESIS OF XIHUITONG LOW-GRADE PHOSPHATE DEPOSIT IN WESTERN LIAONING PROVINCE. GEOLOGY AND RESOURCES, 2023, 32(3): 261-267.

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http://manu25.magtech.com.cn/Jweb_dzyzy/CN/10.13686/j.cnki.dzyzy.2023.03.002 或 http://manu25.magtech.com.cn/Jweb_dzyzy/CN/Y2023/V32/I3/261

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