青海省德尔尼铜矿床矿石特征及成因意义
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摘要
德尔尼铜矿床位于青海省玛沁县境内,是一个大型铜多金属矿床。矿体呈透镜状或似层状,且与地层同褶皱;矿石矿物主要成分为黄铁矿、黄铜矿、磁黄铁矿等,化学成分为铜、锌、钴、硫;矿石结构以半自形-自形-它形粒状为主,其次为压碎、斑状变晶等。结合前人研究成果,认为德尔尼矿床与热液活动有密切关系,成矿温度为100℃~400℃之间,成矿时代为晚石炭世,成矿物质来源可能源于地幔,为中低温海底热液喷流沉积矿床。
The Qinghai copper deposit is a large copper polymetallic deposit.The ore bodies are lenslike or like layered and fold with the formation;the ore minerals are mainly pyrite,chalcopyrite and pyrrhotite,and the chemical composition is copper,zinc,cobalt and sulfur,and the ore structure is dominated by semi-self-form-its granular,followed by crushing,porphyritic and crystalline.According to the previous research results,it is believed that the deel deposit is closely related to the hydrothermal activity,the metallogenic temperature is between 100 and 400 C,the metallogenic epoch is late Carboniferous,and the source of the metallogenic material may be derived from the mantle,which is a medium low temperature seabed hydrothermal deposit deposit.
The Qinghai copper deposit is a large copper polymetallic deposit.The ore bodies are lenslike or like layered and fold with the formation;the ore minerals are mainly pyrite,chalcopyrite and pyrrhotite,and the chemical composition is copper,zinc,cobalt and sulfur,and the ore structure is dominated by semi-self-form-its granular,followed by crushing,porphyritic and crystalline.According to the previous research results,it is believed that the deel deposit is closely related to the hydrothermal activity,the metallogenic temperature is between 100 and 400 C,the metallogenic epoch is late Carboniferous,and the source of the metallogenic material may be derived from the mantle,which is a medium low temperature seabed hydrothermal deposit deposit.
引文
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[6]董富权.德尔尼铜矿床成矿期次与矿床成因研究[D].长安大学,2010.
[7]董富权,钱壮志,王建中,仲佳鑫,孙涛,徐刚,段俊.青海德尔尼铜矿床成因最新研究进展.
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[9]苏现辉.青海德尔尼铜矿床地质特征及成因探讨[J].世界有色金属,2017(23):131-132.
[2]吕良冀.德尔尼铜矿床矿石特征及对矿床成因的指示[J].中国矿业,2017,26(S2):218-223+251.
[3]李鹏.青海德尔尼铜矿成矿背景、矿床成因与找矿方向[D].2008.
[4]陈杰.青海德尔尼铜矿床成矿机制浅析[J].青海地质,1992(01):53-61.
[5]章午生.块状硫化物矿床的一个特殊类型──德尔尼铜矿[J].甘肃地质学报,1995(02):22-31.
[6]董富权.德尔尼铜矿床成矿期次与矿床成因研究[D].长安大学,2010.
[7]董富权,钱壮志,王建中,仲佳鑫,孙涛,徐刚,段俊.青海德尔尼铜矿床成因最新研究进展.
[8]焦洪林.青海德尔尼铜多金属矿床成因及找矿方向[D].中国地质大学(北京),2016.
[9]苏现辉.青海德尔尼铜矿床地质特征及成因探讨[J].世界有色金属,2017(23):131-132.