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- The data and graphs from petrochemistry and geochemistry approve that the tectonic setting is continental margin arc. 岩石化学及地球化学的各种参数和图解表明,其形成于陆缘岛弧环境。
- Keywords rhyolites;geochemistry;continental margin arc;mafic lower crust;Baiyin Mining Field; 流纹岩;地球化学;陆缘弧;镁铁质下地壳;白银厂矿田;
- continental margin arc 陆缘岛弧
- The eastern China Continent has entered into the stage of rifting continental margin since Oligocene. 自渐新世,中国东部大陆进入了张裂的大陆边缘阶段。
- Lantanbulake Formation of Changcheng System is composed of meta-volcanics and volcaniclastics which belong to island arc or active continental margin deposits. 长城系乱滩布拉克组由一套变火山岩、火山碎屑岩组成,属岛弧或活动陆缘沉积;
- In the light of geodynamics and global tectonics,this paper delves into the generation and evolution of Mesozoic Cenozoic back arc basins along the western Pacific active continental margin. 安第斯型大陆边缘主要发育弧前盆地和弧后前陆盆地,日本海型大陆边缘主要发育弧前盆地、陆架盆地和弧后盆地,转换断层大陆边缘主要发育走滑盆地。
- The eigenvalues of the rare-earth elements in the sandstone are close to the parameters of the rare-earth elements located in the active continental margin and in the continental arc. 砂岩稀土元素的特征值接近于活动大陆边缘和大陆岛弧元素的参数值.
- continental marginal arc 大陆边缘弧
- Keywords Plate Tectonics;Magmatism;Mineralization;Baiyin Continental Marginal Arc;Laohushan Back-arc Basin;Adakite and Adakitic Rocks;Early Paleozoic;Eastern Section of the North Qilian; 板块构造;岩浆作用;成矿作用;白银陆缘弧;老虎山弧后盆地;埃达克(质)岩;早古生代;北祁连东段;
- The Lishui Jiaojiang Sag was a faulted basin developing on the continental margin from the late cretaceous epoch. 丽水、椒江凹陷是晚白垩世以来发展起来的大陆边缘裂陷盆地。
- Tile study shows that the vocaniclastic turbidite deposited in a passive continental margin. 该区的火山碎屑浊积岩形成于被动大陆边缘构造环境。
- The source roc k co uld be formed in the condition of relatively stable continental margin epicontin ental marine in micro-plate. 原岩形成于相对稳定的大陆边缘-微板块内的陆表海环境。
- They were continental rift and passive continental margin basins formed as a result of the break-up of Gondwana and the spreading of Atlantic Ocean. 西非海岸盆地群的形成和发育,与中生代以来大西洋裂开和后期的持续扩张作用有关,是冈瓦纳大陆解体和大西洋扩张形成的大陆裂谷和被动陆缘盆地。
- The Xiaorequanzi copper (zinc) deposit is situated in the south of a paleovolcanic domain in Haerlik-Danahu late Palaeozoic continental margin island. 摘要位于东天山的小热泉子铜(锌)矿床是该地区有较大开发意义的矿床类型。
- The study on gas hydrate enrichment in the passive continental margin showed the importance of thermogenic gas for forming gas hydrate. 对被动大陆边缘水合物的富集规律研究表明:热解成因天然气水合物在被动大陆边缘占有重要地位,被动陆缘的活动断裂、底辟构造、滑塌堆积、断裂坡折带和海底扇砂体对天然气水合物的富集过程具有重要的控制作用。
- General features of ocean. Movement of ocean: wave, tides and ocean current. Eros ional and depositional coast. Continental margin and ocean basin. 海洋的一般特征。海洋的运动:波浪、洋流和潮汐。侵蚀型海岸和沉积型海岸。大陆边缘和洋盆。
- Teng, Louis S.(1992) Geotectonic evolution of Tertiary continental margin basins of Taiwan. Petroleum Geology of Taiwan, 27, 1-19. 邓属予(1992)台湾第三纪陆缘盆地的地体演化。台湾石油地质,第27号,第1-19页。
- Gong Zhasheng and Li Sitian. Basin Analysis and Petroleum Accumulation of the Northern South China Sea Continental Margin Basin. Beijing: Science Press, 1997. 龚再升,李思田。南海北部大陆边缘盆地分析与油气聚集。北京:科学出版社,1997。
- In very wide basins the down-drag of the enormous cooling floor dominates processes at the continental margin and produces the deceptive similarities to half-grabens. 在十分广阔的盆地中,大陆边缘主要过程是受巨大冷却板块的向下拖曳,并产生类似半地堑的假象。
- The coarse sediments have generally accumulated along the continental margins. 粗粒沉积物一般沿大陆边缘堆积。