island arc
[地理] 弧形列岛
2025-10-31 22:19 浏览次数 8
[地理] 弧形列岛
1. an arcuate chain of islands
island-arc type岛弧型
island-arc granite岛弧花岗巖
island-arc granitoid岛弧花岗巖
island-arc trench岛弧海沟
island-arc belt岛弧带
Haerlike island-arc火山巖地球化学
island-arc background岛弧背景
the philippine sea surrounded by island arc and deep trench is located at the continental margin of the west pacific, in which some tectonic ridges in the s n direction are developed.
菲律宾海位于西太平洋大陆边缘,它的周边被岛弧和深海沟所环绕,海域内有数条近南北向的构造脊。
both island arc and mid-ocean ridge magmas apparently come from the mantle yet they have different compositions.
岛弧和洋中脊火山巖都明显来自地幔然而他们有不懂的组成。
the alaska-aleutian island arc sys- tem has entered into a stage of overall seismic activity.
阿拉斯加-阿留申岛弧系已经进入全面活动的阶段。
according to all of the results, we can concluded that, 1) the seismic sequences developed in the west shelf, trough basin and ryukyu island arc are different.
通过分析可以得出如下初步结论:1)海槽南部西侧陆架、盆地内部以及琉球岛弧岛坡地震层序是不同的。
the results of the study indicate that the said mass is a syntectic granodiorite-adamellite mass formed in late indo-chinese epoch, being an island arc type plutonite.
研究结果表明,该巖体为印支晚期形成的同熔型花岗闪长巖-二长花岗巖,属于岛弧深成侵入的巖浆巖。
a new point of view was proposed, i. e. the complex under study is one of the members in island arc ophiolite suite, wh…
提出了该杂巖体是一个层序不全多次侵入的岛弧蛇绿巖套中一员的新观点。
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。
xiongcun porphyry deposits are formed in an environment of island arc or similar island arc.
雄村斑巖型铜(金)矿床的形成环境为岛弧或似岛弧环境。
they mainly formed at tectonic environment of the middle ridge of the oceanic plate, partial are the products of island arc and oceanic islands.
主要形成于大洋板块洋中脊构造环境,部分为岛弧一洋岛环境下的产物。
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,沙尔布尔提山安山巖线是中奥陶世至中、晚志留世发育起来的火山岛弧。
the kalaxianger porphyry copper deposit(belt)is located in a late paleozoic island arc on the southern margin of the altay mountains.
卡拉先格尔斑巖铜矿(带)位于阿尔泰东南缘晚古生代岛弧区,含矿斑巖主要为一套中-晚海西期的中酸性斑巖,围巖为中泥盆统北塔山组。
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。
the kanggultage gold ore belt is located in the northern late paleozoic aqishan yamansu island arc belt in the northeast of tarim plate.
东天山康古尔塔格金矿带位于塔里木地块东北部晚古生代阿齐山-雅满苏岛孤带的北缘。
the kanggultage gold—copper ore belt is located in the northern late paleozoic aqishan — yamansu island arc belt in the northeast of tarim plate.
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 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巖系。
pb-isotope is crust-mantle mixed pb of the young pacific island arc normal pb type.
矿石硫显深源硫特点,铅为壳幔混合铅,属较年轻太平洋岛弧型正常铅;
it was generally an active epicontinental environment on the side of the continent, and somewhat had characteristics of the transition from the island arc to the continent.
总体上为大陆一侧的活动陆缘(或大陆弧)环境,具有由岛弧向大陆过渡的迹象。
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巖有关的块状硫化物中的金含量较高。
sediments washed into the basin from both the fore-arc ridge and island arc weigh down the crust in this area, creating the depression.
沉积物被从两侧的弧前脊和岛弧沖到盆地,使该处地壳承重增加,形成洼地。