The polycyclic development of geosynclinal belts is controlled by the cyclicity of subduction during e geological time. 地质时期地槽的多旋回发展受到俯冲作用旋回的控制。
According to diwa theory, three tectonic stages, geosynclinal,platform and diwa, have been recognized in the Alato Mountain. 本文应用地洼学说的观点,明确提出本区经历过地槽、地台、地洼三个大地构造发展阶段;
In recent years,there more different types Mo deposits(spots) have been discovered in Jilin geosynclinal area,mainly porphyry,quartz vein,skarn and fracture altered rock deposits. 近几年吉林槽区陆续发现多处不同类型的钼矿床(点),其主要类型有斑岩型、石英脉型、矽卡岩型、破碎蚀变岩型。
The eastern part of Jilin Province lies across geosynclinal area and platform, f orming appropriate structural pattern, sedimentary formation and magmatic activi ties. 吉林省东部跨槽、台两大构造单元,形成了与这相应的构造样式、沉积建造和岩浆活动。
Marine progression and regression activities in platform areas are frequently triggered by the adjacent geosynclinal areas where basin and range movements take place. 地台区的海进、海退,分别与相邻地槽区的造盆和造山运动伴生这一普遍现象,主要是在重力均衡作用下,上地幔流变层(软流层,异常地幔)物质侧向迁移所致。
Youfangxi-Erbahuo area is situated in Late Hercynian Nanxingan geosynclinal fold belt and developed with Mesozoic volcanics, strong Yanshanian intermediate-acid magrnatism and a series of volcanic-subvocanic hydrothermal Ag polymetal ore deposits. 摘要内蒙油房一二把伙地区位于华北地台北缘南兴安晚华力西期地槽褶皱带,中生代火山岩系发育,燕山期中酸性岩浆活动强烈,形成了一系列火山、潜火山热液型银多金属矿床。