在海沟后侧的弧后盆地的火山中,此处是一个板块俯冲到另一板块的地方,也发现了该类通道,。
They are also found in volcanic “back-arc” basins behind ocean trenches, where one tectonic plate is sliding beneath another.
这张仿自然色彩图像显示的是2006年8月一次火山喷发之后,在汤加Tofua火山弧附近重新出现的HomeReef。
Thissimulated natural color image shows Home Reef, located near the Tofuavolcanic arc in Tonga, reemerging after a volcanic eruption in August2006.
存在比桑日群弧火山岩更早的新特提斯洋俯冲记录么?。
Subduction Record Earlier than arc volcanic rocks in the Sangri Group?
堆晶体发生部分熔融,拆沉物熔融岩浆与地壳熔融岩浆于地壳岩浆房产生完全混合作用,形成古近纪具同碰撞及弧火山属性的岩浆。
The magma of melted detaching and sinking crystal completely mixes with that of the melted crust in the magmatic chamber of crust, which forms the Palaeogene syncollision and volcanic arc magma.
岩相学特征表明,该火山群为典型的钙碱性系列玄武岩安山岩英安岩弧火山岩组合。
The (examination) of the petrography shows that the volcanic terrains in Tengchong are typical of the basalt - (andesite) - (dacite) arc volcanic rock associations of the calc-alkaline series.
从滑坡体与周围地层的叠置关系及火山弧喷发的历史来看,初步认为该海底滑坡是地震造成的。
From the relationship between the landslide area and the surrounding stratum and the history of the volcano eruption, it is suggested that the submarine landslide is triggered by the earthquake.
上述特征充分说明岔河、茂密河的火山岩属大陆弧构造环境。
Therefore the volcanic rocks in Chahe and Maomihe belong to the continental arc environment.
火山岩形成于具有中等成熟度的岛弧环境,其中发育于东水峡的火山岩可能形成于弧内裂谷环境。
They were formed in an island-arc environment of moderate maturity, and the volcanic rocks present in Dongshuixia area might have been formed in an intra-arc rift.
其构造环境主要为火山弧地区。
东天山康古尔·塔格金铜矿带位于塔里木板块东北部晚古生代阿齐山—雅满苏火山弧岛带的北缘。
The Kanggultage gold-copper ore belt is located in the northern late Paleozoic Aqishan - Yamansu island arc belt in the northeast of Tarim plate.
松辽盆地中生代火山岩特征反映了该盆地为弧后裂谷盆地的性质。
The characteristics of the Mesozoic volcanic rock in the Songliao Basin reflect that this basin is a backarc rift basin.
中国东北火山形成很可能属于这种后撤俯冲、远离海沟陆内弧后引张、地幔热物质上涌、减压熔融的情况。
Volcanism in northeastern China is likely a product of such retreat of subduction, far field back-arc extension, and melting due to reduce of pressure while mantle upwelling.
在晚古生代岛弧带、弧前海沟带、弧后盆地或陆缘活动带等构造环境下发育有不同的火山岩组合。
Under the tectonic backgrounds of island arc belt, fore - arc trench belt, back - arc basin, and epicontinental active belt of late Paleozoic, it has different volcanic rock characteristics.
大坂山矿带在早古生代由一个火山弧和陆缘海槽演化而来。
The ore zone of Daiban mountain has evolved from an epicontinentaloceanic trough and a volcanic island-arc during early paleozoic time.
据火山岩的地质、岩石学和地球化学特征,将其确定为陆内弧火山岩。
According to their geological, Petrologicaland geochemical characteristics, they are believed to be intracontinental arc-volcanic rocks.
锥形海山是马里亚纳弧前区非火山成因的海山。
The Conical Seamount is a non-volcanic one in the Mariana Fore Arc.
晚白垩世晚期—始新世,火山岛弧向东移动,东海陆架盆地变为弧后盆地。
During late late Cretaceous-Eocene, volcanic island arc moved eastward and the east China Sea shelf basin was turned into a back-arc basin.
通常形成于弧后或岛弧环境下的同长英质火山岩有关的块状硫化物中的金含量较高。
The massive sulfides related to felsic volcanic rocks in the back-arc and island arc environments have higher content of gold. According to a vast amount of geo chemical research...
通常形成于弧后或岛弧环境下的同长英质火山岩有关的块状硫化物中的金含量较高。
The massive sulfides related to felsic volcanic rocks in the back-arc and island arc environments have higher content of gold. According to a vast amount of geo chemical research...
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