斑流岩
- 与 斑流岩 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The research results indicate that the volcanic rocks in the studied abea are composed of two different kinds of association: Tholeiitic series and calc-alkaline series (basalt, andenite, dacite and rhyolite ).
结果表明,研究区火山岩由拉斑系列大洋玄武岩和钙碱性系列岛弧玄武岩、玄武安山岩、安山岩、英安岩和流纹岩组成。
-
Early Cretaceous granitic volcanic-intrusive complex in Xiushanlinchang of northeastern Da Hinggan Mt. consists mainly of rhyolite, rhyolite ignimbrite-trachytic dacite, trachyandesite formed in eruptive cycle stage and adamellite porphyry-geode syenogranite-graphic alkali feldspar syenogranite formed in hypabyssal invasion stage.
大兴安岭东北部秀山林场一带的早白垩世花岗质火山-侵入杂岩体由喷发旋回期的流纹岩、流纹质熔结凝灰岩-粗面英安岩、粗安岩和浅成侵入期的二长花岗斑岩-晶洞正长花岗岩-文象碱长正长花岗岩构成。
-
It pointed out that meanwhile,the borders between Ehuling group and Daguding group and underlay-layer,which were invaded by granite porphyry and rhyodacite porphyry,respectively,were two shiole faces of the volcano subside and they comp...
同时,指出了两旋回间及早旋回与基底之间的界面是相山火山塌陷中的两个滑脱面,它们分别被花岗斑岩和流纹英安斑岩所侵位,构成了相山火山塌陷盆地东北部及西北部的半环状构造
-
Volcanic rocks, characterized by huge phenocryst, multi-phenocryst, clastic phenocryst and corrosive phenocryst, developed with surging rhyolitic, plastic agglomerate and pseudo accumulation structure, showing intrusive contact with big phenocryst granite batholith and granite porphyry vein, demonstrates its plutonic attribution.
以大斑、多斑、富碎斑和熔蚀斑为特征,发育涌动流纹、塑性集块和假堆积等构造,并与时差很小的大斑花岗岩基、大斑花岗斑岩脉呈侵入接触关系的非层状火山岩,预示其成因为深成端元属性。
-
Gold ore deposits mainly occur in carbonaceou s phyllite, clastic rock and sericite-quartz schist and are controlled by ducti le shearing zone and tectonic alteration zone.
铜矿化与华力西期花岗岩类关系较紧密,金铜找矿以海相喷流沉积型铜矿、斑岩及夕卡岩型铜金矿、构造蚀变岩型金矿及韧性剪切带型金矿为主。
-
Sub-volcanic rocks include andesitic porphyrite, rhylitic porphyry, cryptoexplosive breccia as well as autobreccia etc.(2) Volcanic lithofacies——through the observation of cores, identification of thin sections and interpretation of well logs and seismic data, there are 8 kinds of lithofacies for the volcanic rocks of Yingcheng Formation are identified: fallout facies, effusion facies, pyroclastic flow facies, base surges facies, lahar facies, eruption-sedimentary facies, subvolcanic facies and extrusion facies.(3) Three types of eruption——i. e. explosion, effusion and surge.(4) Two kinds of eruptive environments——Subaerial (e. g. volcano in Well Shangshen 3) and subaqueous .(5) Three remarkable volcanic apparatus in Shengping-Wangjiatun area——layered, micro-shield and cone volcanoes according to volcanic processes and lithofacies distribution.
次火山岩有安山玢岩、流纹斑岩、隐爆角砾岩及自碎角砾岩等;(2)火山岩相——通过岩芯观察、镜下鉴定、测井与地震资料解释,营城组火山岩中发育8种岩相类型,即爆发空落相、溢流相、火山碎屑流、基底涌流相、喷发沉积相、火山泥石流相、侵出相和次火山相等;(3)火山喷发的形式——有爆发、溢流和涌流三种;(4)火山喷发环境——有陆上(如尚深3井火山)和水下两种;(5)火山机构类型——根据火山作用特点和岩相分布特征,在升平—汪家屯地区识别出三类截然不同的火山机构,即层火山、微型盾火山和渣锥火山。
-
The granitic enclaves in the central-facies porphyroblastic lava are subvolcanic rocks with forming age of 134.2±1.9Ma. There is another intrusion of subvolcanic rhyodacitic porphyry with age of 136.0±2.6Ma, in the contact zone of the two volcanic cycles in the western part of the Xiangshan complex. The U-Pb ages of the sub-quartz-monzonite porphyry and lamprophyre are 129.5±2.0Ma and 125.1±3.1Ma, respectively. This suggests that the extension in the Xiangshan region, began in K〓, was week, and earlier than that in the coastal region of Zhejiang and Fujian provinces. Extension in K〓 in Xiangshan and neighboring regions was much stronger, forming NE striking large red-downfaulted-basins.
相山中心相碎斑熔岩中的花岗质包体属次火山岩,其成岩年龄为134.2±1.9Ma,在相山西部两火山旋回的界面之间,存在另一类次火山岩的侵位,其成岩年龄为136.0±2.6Ma,岩性为次流纹英安斑岩;次石英二长斑岩及煌斑岩的成岩年龄分别为129.5±2.0Ma及125.1±3.1Ma,说明相山地区的伸展、裂解作用明显早于浙、闽沿海,在K〓就开始了,但规模并不是很大;而K〓时期的拉张作用在相山及其邻区表现的更为强烈,形成了大面积的呈北东向展布的红色断陷盆地。
-
Petrological and petrochemical characteristics show that there exist such volcanic and subvolcanic rock types as basalt, iddingsite olivine basalt, olivine basaltic trachyandesite, trachybasalt, latite, trachydacite, trachyte, rhyolite, tuff and granite-porphyry in northeast Jiangxi Province. The volcanic rocks can be subdivided into high K calc-alkaline series, shoshonite series and alkaline basalt series.
岩石学及岩石化学特征表明,赣东北地区早白垩世火山岩及次火山岩主要有:玄武岩、伊丁石化橄榄玄武岩、橄榄玄武粗安岩、粗面玄武岩、安粗岩、粗面英安岩、粗面岩、流纹岩、凝灰岩及花岗斑岩等,可划分为高钾钙碱性、橄榄安粗岩和碱性玄武岩3个系列。
-
There are three genetic types of mineral deposits in the Beiya ore district:① Cu-Au polymetallic deposits related to alkaline porphyries, comprising porphyritic Cu-Au deposits and polymetallic skarn deposits related to quartz-albite porphyry and quartz-K-feldspar porphyry;② Fe-Au deposits related to gabbro or basalt magma, consisting of magmatic Fe-Au deposits and sedimentary polymetallic deposits formed in caves and lakes; and ③ palaeo-placers formed at the weathering surface, in lakes and in karsts.
北衙金矿有3种成因不同的矿床:①与碱性斑岩有关的铜金多金属矿,包括与石英钠长斑岩和石英正长斑岩有关的斑岩型铜金矿床和矽卡岩型多金属矿床;②与辉长-玄武岩浆有关的铁金矿床,包括熔浆型铁金矿床和喷流沉积型多金属矿床,后者又有洞穴和湖相沉积环境之分;及③古砂矿,有古风化壳型砂矿、河湖相古砂矿和洞穴沉积古砂矿。
-
Xiangshan volcano-intrusive complexes is the wall rock of the biggest volcanic-rock uranium ore deposit in China, and the main body is rhyolitic porphyroclastic lava, accompanied by hypahyssal or ultra-hypabyssal intrusive rocks such as dacite-porphyry and granite-porphyry Jiulongzhang volcano-intrusive complexes are dominantly rhyolitic welded tuff, accompanied by dacite-porphyry and quartz monzonite-porphyry, and so on, and the uranium resources are being assessed.
相山火山-侵入杂岩是华南地区最大的火山岩型铀矿赋矿围岩,其主体岩石为流纹质碎斑熔岩,浅成-超浅成侵入岩有英安斑岩、花岗斑岩等;九龙嶂火山-侵入杂岩的铀资源潜力尚待评价,主体岩石为流纹质熔结凝灰岩,浅成-超浅成侵入岩有英安斑岩、石英二长斑岩等。
- 推荐网络例句
-
However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
-
Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
-
A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。