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邯郸永年县洪山碱性岩体剥蚀程度分析
投稿时间:2019-10-14  修订日期:2020-06-14  点此下载全文
引用本文:
DOI:10.19762/j.cnki.dizhixuebao.2020238
摘要点击次数: 20
全文下载次数: 26
作者单位E-mail
李随民 河北地质大学 smli71@163.com 
周正柱 河北省地矿局地质四队  
李樋 河北地质大学  
李玉成 河北省地矿局第一地质大队  
赵书梅 河北省地矿局第一地质大队  
韩腾飞 河北省地质调查院  
孙志伟 河北省地质调查院  
方勇勇 河北地质大学  
基金项目:河北省国土资源厅(2013045650)和河北省地矿局(454-0601-YBN-QEXZ)
中文摘要:邯郸永年洪山碱性岩体及其周边成矿条件优越,已发现金、铜矿化点多处。研究显示金、铜矿床(点)在形成及分布上与洪山岩体有着密切的成因联系。金矿化主要分布在岩体北侧的火山凝灰岩中;铜矿化分布较广,但矿化以岩体中心区域为主。由于岩体剥蚀深度研究程度较低,位于岩体顶部或上方的铜金矿化主体部分是否已遭受风化剥蚀,区内铜金矿化深部找矿潜力如何等问题均亟需分析确定。据此,本文依据岩体“盖层”厚度恢复法、相对隆升剥蚀程度识别法、夷平面法和磷灰石裂变径迹法等综合判别洪山岩体剥蚀深度。不同剥蚀程度判别方法所得结论基本吻合,得出洪山岩体中心区域隆升剥蚀程度最大,在2km左右;岩体南北两侧剥蚀程度逐渐减小。在岩体剥蚀深度分析基础上,给出了区内铜金矿床找矿方向,认为金矿化有利找矿区域在岩体南侧火山凝灰岩分布区,岩体中心部位铜矿化找矿前景不容乐观。
中文关键词:剥蚀程度  铜金矿化  找矿方向  洪山岩体  邯郸
 
Analysis of denudation degree in the Hongshan alkaline rock mass, Yongnian County, Hebei Province
Author NameAffiliationE-mail
lisuimin Hebei Geo university smli71@163.com 
Zhouzhengzhu The Fouth Geological Team of Hebei provincial bureau of geology and mineral resources  
Litong Hebei Geo university  
liyuchen The First Geological Team of Hebei provincial bureau of geology and mineral resource  
zhaoshumei The First Geological Team of Hebei provincial bureau of geology and mineral resource  
hantengfei Hebei geological survey institute  
sunweizhi Hebei geological survey institute  
Fangyongyong Hebei Geo university  
Abstract:Many mineralized spots of gold and copper have been found in alkaline rock mass and its surrounding, which shows that ore-forming geological condition is superior. The research shows that the formation and distribution of gold and copper deposits are closely related to the Hongshan rock mass. The gold mineralization is mainly distributed in the volcanic tuff on the north side of the rock mass, while copper mineralization is widely distributed, but mainly distributed in the central area of the rock mass. Due to the degree of erosion of rock mass is less studied, The weather denudation degree of main part of copper-gold mineralization which located at the top or above of the rock mass is not clear. Deep prospecting potential of copper-gold mineralization also not clear and needs to analyze. According to the ‘cover layer’ thickness restoration method of the rock mass, relative uplift denudation degree identification method, planation surface method and apatite fission track method, the conclusions of different discrimination methods is basically consistent. the study results showed that the denudation degree of central region of Hongshan rock mass is the largest, about 2km. The degree of denudation decreases gradually along both sides of the rock mass. Based on the above analysis, the prospecting direction of the copper and gold deposits is given. The favorable prospecting area of gold mineralization distribute in the volcanic tufu which lie in the south side of the rock mass, and the copper mineralization in the central part of the rock mass is not optimistic.
keywords:denudation  degree,copper-gold  mineralization, prospecting  direction, hongshan  rock mass,Handan
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