山东国土资源
山東國土資源
산동국토자원
LAND AND RESOURCES IN SHANGDONG PROVINCE
2014年
10期
8-14,20
,共8页
金伯利岩%华北板块%区域地质背景%成矿预测%古地磁
金伯利巖%華北闆塊%區域地質揹景%成礦預測%古地磁
금백리암%화북판괴%구역지질배경%성광예측%고지자
Kimberlite%North China plate%regional geological background%metallogenic prediction%paleo-magnetic
对分布于华北板块东缘的辽宁铁岭、瓦房店及山东蒙阴等3个金伯利岩区的地质构造特征进行了研究,利用地层时代、构造行迹、古地磁以及同位素资料,对该区域金伯利岩的侵位时间进行了综合约束,认为该区域金伯利岩的侵位时间应该在250~300 Ma 之间。在此基础上,结合华北板块与扬子板块在古生代时的相互运移特征,对华北板块东缘金刚石的成矿区域地质背景进行了分析,并结合构造形迹的研究,对该区域金刚石原生矿进行了成矿预测。
對分佈于華北闆塊東緣的遼寧鐵嶺、瓦房店及山東矇陰等3箇金伯利巖區的地質構造特徵進行瞭研究,利用地層時代、構造行跡、古地磁以及同位素資料,對該區域金伯利巖的侵位時間進行瞭綜閤約束,認為該區域金伯利巖的侵位時間應該在250~300 Ma 之間。在此基礎上,結閤華北闆塊與颺子闆塊在古生代時的相互運移特徵,對華北闆塊東緣金剛石的成礦區域地質揹景進行瞭分析,併結閤構造形跡的研究,對該區域金剛石原生礦進行瞭成礦預測。
대분포우화북판괴동연적료녕철령、와방점급산동몽음등3개금백리암구적지질구조특정진행료연구,이용지층시대、구조행적、고지자이급동위소자료,대해구역금백리암적침위시간진행료종합약속,인위해구역금백리암적침위시간응해재250~300 Ma 지간。재차기출상,결합화북판괴여양자판괴재고생대시적상호운이특정,대화북판괴동연금강석적성광구역지질배경진행료분석,병결합구조형적적연구,대해구역금강석원생광진행료성광예측。
Geological structural characteristics of Tieling and Wafangdian kimberlite in Liaoning province and Mengyin in Shandong province in eastern margin of North China plate have been studied.By using stratigraphic age,tectonic deeds,paleomagnetic and isotopic data,emplacement time of kimberlites in the region has been constrainted comprehensively.It is regarded that emplacement time of kimberlite in this region should be between 250~300 Ma.On this basis,combining with migration characteristics of North China plate and Yangtze plate during Paleozoic period,regional geological background of diamond minerali-zation regions in eastern margin of the North China Plate has been analyzed.Combining with the study on the structural trace,metallogenic prediction of diamond primary ore has been carried out as well.