岩浆

It's difficult to decide the position of the unit in evolutional seriary of magma.

该单元在演化序列中所处的位1难以确定。

The volcano disgorges lava.

火喷出。

The deposit was produced by superimposition of the hot-water sedimentary mineralization and magmatic hydatogenesis.

该矿床是水沉积矿作用与矿作用叠加矿的产物。

Basic, acidic extrusive and volcanoclastic rocks are known as the main rock types.

石炭纪末期本区的活动开始,早二叠世晚期和晚二叠世早期是个主活动期。

Bajiazi polymetallic ore deposit is an old mine,which occured in southeastern part of Bajiazi-Yangjiazhangzi magmatic hydrotherm metallogenic belt.

八家子多金属矿是一个老矿,它产于八家子—杨家杖子矿带南西部。

A tectno-magmatic province in relationship with the Dalimu and Sino-Korean paraplatforms defines two giant hyperalkaline to alkaline to carbonate mineralization belts.

塔里木一中朝个准地台相关构造-带中,有个巨大的超基性-碱性-碳酸杂型磷矿矿带。

The types of deposits basically are differential metasomatism in the later magma, pneumatolytic hydrothermal process, pegmatite process, residual deposits and placer deposits.

矿床类型以晚期分异交代型、气型、伟晶型、风化壳型和砂矿型为主。

The metallogenic material was from deep alkalic basaltic magma, and the pulsatory invasion was the necessary metallogenic condition of the ore deposit.

矿物质源于碱性玄武，基性次火多次脉动式入侵是矿床形的必要条件。

The orebody is controlled by SN, NW faults and fissures, the ore deposit belongs to magmatic hydrothermalism-stratabound and compound magmatic hydrothermalism type one.

矿体受南北向、北西向断裂及裂隙构造控制,矿床因为—层控与复合型。

Research for geofluids is a hot-point and frontier in the geoscience field, especially, in igeous petrology, metamorphic petrology, geotectology and study of mineral deposits.

流体研究是近年来地学界研究的点和前沿,它不仅在、构造、变质等方面的研究中受到重视,而且在矿床研究领域得到了发展。

B its of strombolian-type scoria and Hawaii-type effusive lava may accompany lately after Phreatomagmaticerup tion, they constitute a erup tive activity cycle in its entirely.

射汽喷发晚期往往伴随斯通博利式喷发和夏威夷式熔流,三者构一个完整火活动旋回。

The volcanogenic deposits hosted in differential yolcanic rock series and cogenetic deposits hosted in undifferential baste volcanic rock series have been divided and studied in this paper.

笔者通过研究，分出了分异火系中的火因矿床和未分异基性火系中的共生矿床，认为前者的金属聚集与分异有密切关系。

Being the residual island are of the convergent plate subducted to the south, the central Baiyin Minerogenetic Belt is located at the southeast edge of the north Qilian Caledonian eugeosyncline.

摘要内蒙油房一二把伙地区位于华北地台北缘南兴安晚华力西期地槽褶皱带，中生代火系发育，燕期中酸性活动强烈，形了一系列火、潜火型银多金属矿床。

Hence, for the minerals to be analyzed in some rocks, when there are all sorts of genesis with xenolith, magma, mantle and so on in them,the age of a certain single event can be respectively got.

因此，当某些体的被测矿物有捕虏体因、因、地幔因等各种来源时，可分别求出某单一事件的年龄。