火山弧

稀土分配平坦型的拉斑玄武岩（TH1）类似于洋壳，但与MORB显著不同，更象不成熟的大陆性火山弧。

The flat REE pattern of tholeite ( TH 1 ) suggests that it is similar to the nature of ocean crust , but obviously different from MORB , and much alike to immature continental volcanic arc .

在Rb-Hf-Ta和Rb-Y+Nb构造判别图解上，桃红岩体和西裘岩体都属于火山弧花岗岩（VAG），形成于活动大陆边缘。

On the Rb-Hf-Ta and Rb-Y + Nb discrimination diagrams , they plot exclusively into the volcanic arc granitoid ( VAG ) field , suggesting that they were formed in an active continental margin .

如早期（J2）新特提斯主洋壳俯冲阶段所形成的普通火山弧，产有火山熔（流）型夕卡岩铜多金属矿床；

For example , there is the volcanic magmatic-hydrothermal transitional type of skarn Cu polymetallic deposit , located in common volcanic-arc which New-Tethys main ocean crust had subducted ;

台湾-吕宋岛双火山弧的构造意义

Tectonic implications of the double island arc between Taiwan and Luzon

具有壳幔混合产物的特征。构造背景为火山弧花岗岩。

The tectonic setting is granite in volcanic arc .

其构造环境主要为火山弧地区。

Their structural environment is mainly volcanic arc .

痕量元素特征与典型的火山弧花岗岩相似。

The characteristics of trace elements are similar to that of island-arc granites ( IAG ) .

它经历了板内大陆裂谷→陆间裂谷→火山弧→造山带的开合过程。

It underwent a series of tectonic opening-closing including intraplate continental rift → intercontinental rift → volcanic arc → orogenic belt .

北祁连中段俯冲-增生杂岩/火山弧的时代探讨

A Tentative Discussion on the Ages of the Subduction-Accretionary Complex / Volcanic Arcs in the Middle Sector of North Qilian Mountain

北祁连中段加里东俯冲－增生杂岩／火山弧带及其变形特征

Caledonian Subduction - Accretionary Conplec / Volcanic Arc Zone and Its Deformation Features in the Middle Sector of North Qilian Mountains

砾石主要不是直接来源于现在遭受剥露的古岛弧根带，而可能是来自上部的火山弧。

The conglomerates may come from the upper of the volcanic arc , not paleo-island arc root belt being suffered denudation now .

扎合岩体形成的构造背景为后碰撞阶段的挤压环境，即大陆火山弧地区。

The pluton formed in a extrusion setting , the post-collision tectonic stage , in other words , that is volcanic arc areas of the mainland .

因此，我们提出火山弧环境下的矿床中的金属含量是在伴随着的原始岩浆喷射的出溶作用中形成的，原始岩浆喷射之后立刻爆炸性的喷发。

We propose that the metal content of ores forming in volcanic arc environments is established by exsolution accompanying injections of primitive magma immediately before explosive eruptions .

花岗斑岩与成矿作用关系密切，从岩石学、岩石化学、年龄学等方面对花岗斑岩进行了研究，认为花岗斑岩属于志留世早期形成于火山弧环境的埃达克岩。

Study on petrology , geochemistry and isotope chronology shows that the metallogenesis is closely related to granite-porphyry , which belongs to the Early Ordovician adakite formed in volcanic arc .

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 .

文中强调以自然的、显著的、易于识别的标志&火山弧的出现代表东亚构造域动力学体系的转变；

This paper emphasizes the natural , notable and recognizable marker that is the emergence of a continental volcanic arc on the East Asia margin , which represents the conversion of the geodynamic systems .

西昆仑造山带花岗岩存在6个大的侵入旋回和9个侵入期，分别形成于洋脊环境、火山弧环境、碰撞后隆起环境和造山晚期相对拉张环境。

There are six intrusive cycles and nine intrusive periods of granitoids in west Kunlun orogenic belt . The granitoids were formed in ocean ridge , volcanic arc , syn_collision , post_collision uplift and late orogenic environments respectively .

经过了长期而复杂的微大陆和火山弧的裂解、弧后盆地的消减衰亡及弧－陆和弧－弧碰拉等构造演化，才最终形成今天所见到的这种构造样式。论岛弧的拱结构

At last they have being formed the tectonic framework , after breakup of the volcanic island arcs , subduction , decline and fall of the back-arc basins and arc-microcontinent and arc-arc collision had finished . THE ARCH STRUCTURE OF ISLAND ARCS

北祁连下志留统碎屑岩的主要物源区为北祁连早古生代火山弧、中祁连地块的元古代基底和华北克拉通太古代基底及其再旋回沉积物。

The Lower Silurian sediments in North Qilian were mainly sourced from the North Qilian early Paleozoic volcanic arc , the Proterozoic basement of the Central Qilian Block and the Archean basement and its recycled materials of the North China Craton .

扼要评介了国内外关于台湾-吕宋岛双火山弧在南海沿马尼拉海沟俯冲的动力学过程和俯冲板块深部形态等方面研究的成果；

In this paper some brief comments were made on the research achievements of geodynamic process of the South China Sea subducted through the Manila Trench and the geometry of the subducted slab based on research results on the double island arc between Taiwan and Luzon .

早三叠世晚期物源发生重大变化，岩石地球化学组成明显不同于晚二叠世-早三叠世早期沉积岩，且砂屑灰岩中首次出现来自火山弧的二叠纪年龄的碎屑锆石。

The provenance of the late Early Triassic sediments , however , are changed totally , as suggested by that the sediments have distinctly different geochemistry from the Late Permian-early Early Triassic clastic rocks and volcanic-arc sourced detrital zircons with Permian ages are present in the calcarenites .

作者主张这些盆地可以与黑海和里海盆地相比较，并提出准噶尔盆地形成在石碳纪，塔里木和柴达木盆地形成在二叠纪，它们是古生代亚洲南部活动边缘火山弧后面的残留盆地。

I propose that those basins be compared to the Black Sea and Caspian Basins , and suggest that Junggar was formed during the Carboniferous Period , and Tarim and Qaidam during the Permian Period , as back-arc basins behind volcanic arcs on the southern active margin of Paleozoic Asia .

据此，再造了造山带的形成过程与演化历史：印支期的大规模俯冲造山作用（238～210Ma），形成义敦火山岩浆弧；

The formation and evolution were reconstructed . A large-scale Indosinian subduction-orogenesis led to the formation of the Yidun magmatic arc ( 238-210 Ma ) .

青臧高原冈底斯南缘火山-岩浆弧带曾经历了非常复杂的演化过程，特别是洋&陆转换历史。

The volcanic-magma arc belts on southern margin of Gangdisi had ever gone through greatly complicated course of evolvement , especially history of ocean-continent conversion .

班公湖-怒江结合带北侧陆缘火山-岩浆弧带的厘定及其意义

The delineation and significance of the continental - margin volcanic - magmatic arc zone in the northern part of the Bangong - Nujiang suture zone

第三组火山岩形成于弧间盆地，由亏损的地幔楔高度部分熔融形成比N-MORB亏损的的火山岩（异常MORB）。

The third group of volcanic rocks ( VTG-III ) consists of highly depleted MORB-type lavas , and is believed to have been generated by partial melting of the depleted mantle wedge in an inter-arc basin .

冲绳海槽火山岩&揭示弧后盆地早期扩张动力学过程的钥匙

Volcanic rocks from Okinawa TROUGH-A key to the dynamic process during the initial spreading stage of the back arc basin

在微量元素构造判别图上，火山岩样品集中在火山岛弧和弧后盆地的范围内。

On tectonic discrimination plots of trace elements , all samples of volcanic rocks fall into the field of volcanic island arc and back arc basin .