山东国土资源
山東國土資源
산동국토자원
LAND AND RESOURCES IN SHANGDONG PROVINCE
2014年
4期
13-20
,共8页
板块回撤%折返%苏鲁造山带%扬子板块%中生代%胶东金矿
闆塊迴撤%摺返%囌魯造山帶%颺子闆塊%中生代%膠東金礦
판괴회철%절반%소로조산대%양자판괴%중생대%효동금광
Plate retracement%exhumation%Sulu tectonic belt%Yangtze plate%Mesozoic period%Jiaodong gold deposit
通过对山东中生代侵入岩体的时空展布、岩石化学及同位素特征的综合分析研究，提出了扬子板块东北缘俯冲与回撤的演化机制，分析了在这种机制下的成岩、成矿演化规律。认为扬子板块东北缘的俯冲与回撤控制了山东中生代的地质演化过程，其回撤在岩石圈深部造成的真空，导致软流圈物质的隆升，是胶东金矿大规模成矿作用的内在控制因素。
通過對山東中生代侵入巖體的時空展佈、巖石化學及同位素特徵的綜閤分析研究，提齣瞭颺子闆塊東北緣俯遲與迴撤的縯化機製，分析瞭在這種機製下的成巖、成礦縯化規律。認為颺子闆塊東北緣的俯遲與迴撤控製瞭山東中生代的地質縯化過程，其迴撤在巖石圈深部造成的真空，導緻軟流圈物質的隆升，是膠東金礦大規模成礦作用的內在控製因素。
통과대산동중생대침입암체적시공전포、암석화학급동위소특정적종합분석연구，제출료양자판괴동북연부충여회철적연화궤제，분석료재저충궤제하적성암、성광연화규률。인위양자판괴동북연적부충여회철공제료산동중생대적지질연화과정，기회철재암석권심부조성적진공，도치연류권물질적륭승，시효동금광대규모성광작용적내재공제인소。
Through comprehensive analysis on time area distribution,chemical and isotopic characteristics of the rock of Mesozoic intrusions in Shandong province,subduction and evolution mechanisms of the north-eastern margin of the Yangtze plate have been put forward,and evolution mechanism of mineralization has been analyzed.It is regarded that subduction and retracement of the northeastern margin of the Yangtze plate controlled Mesozoic geological evolution in Shandong province.Its retracement has caused the vacu-um of the lithosphere,and the uplifting of material is in asthenosphere.It is an internal controlling factor of mass gold mineralization in Jiaodong gold deposit.
