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- This deposit is hosted within the metamorphosed submarine bimodal volcanic rocks of the Kawabulake Grou p (Pt2). 已发现 的2个矿体呈层状、透镜状产出,产状与围岩地层一致。
- In each bimodal volcanic succession, there exists a differentiation crystallization relationship between basic and silicic lavas. 各个双峰式火山岩系中,基性和酸性熔岩间为分异结晶关系。
- The metamorphic rocks consist of three basic-acid volcanic-sedimentary cycles and show the features of bimodal volcanic rocks. 东岩组地层由3个基性、酸性火山喷发(溢)沉积旋回组成,具有双峰式火山岩特征。
- One is a bimodal volcanic assemblage, which formed during the rifting stage of the continental breakup theother is represented by flysch rocks, formed when the passive margin becomes stable. 被动陆缘的沉积建造由两套沉积物组成,一套是大陆解体的裂谷阶段所形成的陆相沉积物和双模式火山岩组合,另一套是稳定陆缘的复理石组合;
- Petrochemical, microelement, rare-earth element data and the character of bimodal volcanic rocks show that the Bikou Group strata were formed in an island arc-rift valley geote ctonic environment. 岩石化学、微量元素和稀土元素等一系列图解,都一致判别为碧口群火山岩主要是钙碱系列,也有少量的拉斑系列,并具双峰式火山岩特征。因此,认为碧口群可能形成于岛弧裂谷环境。
- The Xiaoban Gold Deposit,located in the concentration area of gold mineralization in central Fujian,is controlled by the Proterozoic basicacid bimodal volcanic rock and the ductile shear zone. 矿床受元古界基性、酸性双峰式火山岩层位及韧性剪切带双重控制,属绿岩带中的韧性剪切带型金矿床。
- During the late Archaeozoic, there was bimodal volcanism,alkalic magma eruption and intrusion, showing the tension-riftedcharacteristics of the valleys. 在晚太古代有“双峰态”火山活动、碱性岩浆喷发和侵入,反映了裂谷拉张特征。
- Studies show that bimodal volcanics constitute the most favorable host rock association for volcanogenic massive sulfide deposits. 整理结果表明,双峰式火山岩是火山成因块状硫化物矿床的最佳含矿岩石组合;
- Bimodal Volcanic Association and Massive Sulfide Deposits 双峰式火山岩与块状硫化物矿床
- Definition of Neoproterozoic bimodal volcanic rocks in the south of Hangzhou and its tectonic significance 杭州南部新元古代双峰式火山岩的厘定及其构造意义
- Immiscibility of basalt magma at high pressure and its significance to the bimodal volcanic rock 高压下玄武岩浆的不混溶及其对双峰式火山岩的成因意义
- Keywords volcanogenic massive sulfide deposits;magmatic differentiation;bimodal volcanic rocks;Altay;Xinjiang; 火山岩型块状硫化物矿床;岩浆分异;双峰式火山岩;新疆阿尔泰;
- Keywords central Fujian;Dongyan Formation;bimodal volcanic rocks;greenschist;lead-zinc deposit; 闽中;东岩组;双峰式火山岩;绿片岩;铅锌矿床;
- Keywords Devonian rift basin bimodal volcanic rocks delta deposition submarine fan deposition Northern Guangdong; 泥盆纪;裂陷盆地;三角洲相“双峰式”火山岩套;海底扇相;粤北;
- The temperature of volcanic gases is very high. 火山气体的温度很高。
- [Qiu Jiansheng, Wang Dezi and Zhou Jincheng. 1999.Geochemistry and petrogenesis of the late Mesozoic bimodal volcanic rocks at Yunshan caldera, Yongtai county, Fujian province. 邱检生;王德滋;周金城.;1999
- An agglomerate is a volcanic breccia. 集块岩是一种火山性角砾石。
- The place was recently visited by a serious volcanic eruption. 这地方最近发生了一次严重的火山爆发。
- The phenomena associated with volcanic activity. 火山现象与火山活动有关的现象
- bimodal volcanic complex 双模式火山杂岩