查询词典 porphyritic

In addition, the porphyritic allanite- formed by magmatic crystallization was found in the granitic gneisses, it not only shows that the granitic gneisses were metamorphized from magmatic rocks, but also shows that the degree of the metamorphism undergoen was not very intense.

另外在花岗片麻岩中发现有岩浆结晶成因型褐帘石斑晶的残留，这一方面说明这套花岗片麻岩的原岩是种岩浆岩，同时说明它们所经历过的变质作用程度不可能很强。

The authors dated the zircons from the mineralized porphyritic granite and quartz_monzonite porphyry in this deposit by using the LA-ICP-MS U-Pb dating method. The results show that the two ore_bearing intrusions were emplaced in Middle Devonian and Early Permian, respectively.

文章以近年发现的玉勒肯哈腊苏铜矿床为主要研究对象，对矿区内铜矿化的斑状花岗岩和石英二长斑岩进行了锆石U_Pb法精确定年。

The scene of the geo-park is rich in volcanic rocks, which predominately consists of pyroclast-bearing and volcanoclastic rocks with porphyritic texture and can be classed into plutonic, epizonal, intrusive, extrusive and eruptive environments.

通过对大别山金刚台国家地质公园火山岩的岩性特征、火山岩相、相模式和火山机构的研究，认为火成岩斑状结构的含碎屑碎屑状岩石可以有深成、浅成、侵出、喷溢或爆发等不同产状。

Source material of the gold deposit has close connections with the ultrabasic rocks, albite porphyritic dikes, thick|layered dolomite and clastic sedimentary rocks.

金矿的物质来源与矿区的超基性岩体、钠长斑岩脉、厚层状白云岩及各类碎屑沉积岩有密切的关系。

The Chengzihe Formation in Zhangxin area of Jixi basin,Heilongjiang Province is intruded by the algorite sill. The mafic rocks are pure, porphyritic and contain no xenolith.

黑龙江省鸡西盆地张新地区辉绿玢岩呈岩床状侵入晚中生代城子河组地层中；辉绿玢岩较纯净，无捕虏体，呈斑状结构，斑晶由普通辉石、斜长石组成，斑晶体积分数为35%～40%；基质由微晶斜长石、辉石、磁铁矿及玻璃质组成。

The main rock types include porphyritic granodiorite, porphyritic granite, biotite adamellite and garnet-granitite.

岩石类型主要有斑状花岗闪长岩、巨斑黑云母花岗岩、黑云二长花岗岩、含石榴石花岗岩等。

The Chahayan pluton is located in the Eerguna block in the eastern Daxing'anling Mountains, and mainly consists of porphyritic biotitic syenogranite.

察哈彦岩体位于大兴安岭东北部额尔古纳地块之上，主要岩性为斑状黑云母正长花岗岩。

Xitian granitic multiple intrusion dominately consist of medium-fine porphyritic biotite granite, with complementary fine biotite granite with much lesser phenocrysts and deuteric injections.

该复式花岗岩可划分为主体（中细粒斑状黑云母花岗岩）、补体和晚期侵入体。

SHRIMP and LA-ICP-MS zircon U-Pb dating yielded some age data: the Longchahe porphyritic granite is (81.2±1.4)~(83.2±1.4) Ma, the porphyritic granite in Malage-Songshujia area is (82.8±1.7) Ma, the porphyritic granite in Laochang area is (83.3±1.6) Ma and the Baishachong equigranular granite is (77.4±2.5) Ma.

文章首次采用LA-ICP-MS和SHRIMP U-Pb方法对研究区内的花岗岩进行了精确定年，数据表明，不同类型的花岗岩同时或近于同时形成。龙岔河似斑状花岗岩主要形成于(82.0±0.3)~(83.2±1.4)Ma，马拉格－松树脚似斑状花岗岩形成于(82.8±1.7)Ma，老厂似斑状花岗岩形成于(83.3±1.6)Ma，白沙冲等粒花岗岩形成于(77.4±2.5)Ma，均集中形成于晚白垩世。

On the basis of the rock type, texture and structure and formations age of the Kuiqi miarolitic granite batholith it is devided into 4 units:1 Miarolitic biotite-feldspar granite; 2 Medium-coase-grained miorolitic alkali-granite ; 3 Porphyritic miarolitic alkali-granite ; 4 Fine-grainedmiarolitic alkali-granite .

根据魁岐杂岩体的岩石类型、结构构造、形成的时间先后等，将其划分为4个单元：(1)晶洞黑云母钾长花岗岩；(2)晶洞中粗粒碱性花岗岩；(3)晶洞斑状碱性花岗岩；(4)晶洞细粒碱性花岗岩。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷