Their structural environment is mainly volcanic arc.
其构造环境主要为火山弧地区。
Thissimulated natural color image shows Home Reef, located near the Tofuavolcanic arc in Tonga, reemerging after a volcanic eruption in August2006.
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。
At least 60 large eruptions of Shiveluch have occurred during the past 10,000 years, making it the most vigorous volcano of the Kuril-Kamchatka volcanic arc.
在过去的10000年里，大规模的火山喷发不少于60次，使其成为环千岛——堪察加半岛弧上最具活力的火山。
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.
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。
They are also found in volcanic “back-arc” basins behind ocean trenches, where one tectonic plate is sliding beneath another.
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，。
Subduction Record Earlier than arc volcanic rocks in the Sangri Group?
存在比桑日群弧火山岩更早的新特提斯洋俯冲记录么?。
From the suture line towards the north, an andesite line along Sharburti Mountain was the volcanic island arc developed from middle Ordovician to middle-late Silurian.
由缝合线向北，沙尔布尔提山安山岩线是中奥陶世至中、晚志留世发育起来的火山岛弧。
Therefore the volcanic rocks in Chahe and Maomihe belong to the continental arc environment.
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。
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.
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。
Their original rocks are volcanic rocks, epicontinental clastic sedimentary rocks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkali series.
其原岩岩石类型有火山岩，陆缘碎屑沉积岩，火山、岛弧拉斑系列或钙堿系列火山岩、蛇绿岩等。
Papua New Guinea lies on the "Ring of Fire" - an arc of earthquake and volcanic zones that stretches around the Pacific Rim and where about 90 percent of the world's quakes occur.
巴布亚新几内亚位于“太平洋火圈”—一个弧形的地震和火山的地带，延伸围绕泛太平洋并且这里发生世界地震的大约百分之90。
A basin situated within an island arc and typically containing sediments rich in volcanic debris.
一种位于岛弧内的盆地，经含富火山碎屑的沉积物为典型。
During late late Cretaceous-Eocene, volcanic island arc moved eastward and the east China Sea shelf basin was turned into a back-arc basin.
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。
The ore zone of Daiban mountain has evolved from an epicontinentaloceanic trough and a volcanic island-arc during early paleozoic time.
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。
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.
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。
Its provenance is the Dawazi volcanic island-arc on the west side.
其物源主要来自其西侧的大凹子火山岛弧。
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.
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。
The Conical Seamount is a non-volcanic one in the Mariana Fore Arc.
锥形海山是马里亚纳弧前区非火山成因的海山。
According to their geological, Petrologicaland geochemical characteristics, they are believed to be intracontinental arc-volcanic rocks.
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。
The Middle Ordovician submarine spilite-alkaline volcanic rock association in the Shihuigou area in the Northern Qilian mountains was the product of island arc volcanism.
北祁连山石灰沟地区发育一套完整的奥陶纪岛弧火山岩系。
The geochemistry of the cherts reflects that the cherts coexisting with island-arc volcanic rocks all formed the background of continental margin basin.
硅质岩的沉积地球化学研究表明，与岛弧火山岩共生的硅质岩为生物成因，形成于大陆边缘盆地的构造背景。
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...
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。
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