火成岩

The petrogenesis of intrusive rocks is discussed in this paper according to the equilibrium of minerals. It is suggests that in the Shigujian pluton, the designations of plagioclases are 15 - 25, the plagioclases are all oligoclase; the biotites are Mg-biotites, and most of the amphiboles are edenitic amphiboles or edenite; paragenetic ...

结果表明：（1）石鼓尖侵入岩中，斜长石成分较稳定，共生角门石和黑云母为岩浆平衡结晶的矿物；（2）天堂寨和九资河侵入岩中，部分斜长石和黑云母可能为熔蚀残留矿物，角闪石属于火成岩区的新生矿物，可能为斜长石和黑云母发生熔融反应所形成；（3）三个侵入体的岩石均为岩浆成因。

Extrusive igneous rock solidified near or on the surface of the Earth.

在地球表面或附近凝固的火成岩。

Contrast the formation of intrusive and extrusive igneous rocks.

对比形成的侵扰和挤压火成岩。

Obsidian is an igneous rock that looks like a broken filly of black glass.

黑曜石是火成岩像断母黑色玻璃。

The Panzhihua intrusion, a part of the Emeishan large igneous province, is one of typical V—Ti magnetite ore-bearing layered gabbro intrusions.

攀枝花岩体是攀西地区一个典型含钒钛磁铁矿的层状辉长质岩体，是峨眉山大火成岩省的组成部分。

When silica content reaches 45-53 %, basic rocks become the name of this type of igneous rock in which the gabbro is the typical intrusive rock which are composed of pyroxene and calcium plagioclase, whereas basalt is the equivalent extrusive rock.

当岩石中SiO2含量在45～53%之间时，称这类火成岩为基性岩。辉长岩就是这类岩石侵入岩的典型代表，其中矿物成分为辉石，钙长石，而基性的喷出岩则称之为玄武岩。

Gneiss is a typical metamorphic rock type, in which a sedimentary or igneous rock has been deeply buried and subjected to high temperatures and pressures.

片麻岩是一个典型的变质岩石类型，其中含有的火成岩或沉积岩受到深埋与高温和压力。

The age of igneous rock obtained from the central graben is younger than 1 Ma.

中央张裂地堑内的火成岩年龄不大于1Ma。

Rhyolites are a group of extrusive igneous rocks with phenocrysts (visible crystals that grew out of the molten lava) of quartz and alkali feldspar in a glassy to cryptocrystalline groundmass.

流纹岩是一组受挤压火成岩矿，包含了在玻璃基的隐晶质中的石英与碱性长石的斑晶（生在于熔岩外的可见石英晶体）。

The heavy mudstone layers in Third Member of Shahejie Formation (Es3) provide favorable hydrocarbon source rock and cap formation, diabase and hornfels belts serve as reservoirs, faults and microcracks in the wall rocks as the pathways for oil and gas migration.

沙三段厚层生油岩为火成岩储层提供了良好的烃源岩和封盖层；辉绿岩及角岩带为主要的储层带；断层及围岩中的微裂缝为油气运移提供运移通道。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。