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The early magmatic rocks include quartz syenite porphyries , syenite porphyries , striking in near SN direction; the latter ones include biotite syenite porphyries , lamprophyres, striking in near EW direction.

详细讨论了北衙矿区的地质特征,通过对勘探资料的深入研究和野外观察,初步确定,北衙矿区存在两期岩浆活动,早期的石英正长斑岩、正长斑岩等近南北向分布,晚期的黑云正长斑岩、煌斑岩脉等呈近东西向展布。

The study of volcanic rocks in orogenic belts aims mainly at retracing the tectono-magmatic evolutionary history of orogenic belts.

造山带火山岩石学研究的主要目的在于重溯造山带的构造-岩浆演化历史。

The plate previously subduced had started to break off, which resulted in its crust materials and mantle materials being mixed up, and formed the source region of richening molten materials. The large-scale magma activity appeared in the two blocks of Himalayan and Lhas-Gangdese.

先行俯冲板片发生断离,其地壳物质与地幔物质混合,从而形成板内富集熔体的源区,并在喜马拉雅—拉萨块体内形成了大规模的岩浆活动。

Most of the Mesozoic and Cenozoic rifted basins in East China experienced magmation to some extent during or after the basin formation.

中国东部中、新生代裂陷盆地在成盆期或成盆期后大多都发生过不同程度的岩浆活动。

It finally concludes that magmation is one of the major factors influencing the enrichment and pooling of coalbed gas in the Mesozoic and Cenozoic rifted coal basins in the eastern part of China.

最后得出岩浆活动是中国东部中、新生代裂陷含煤盆地煤层气富集乃至成藏的重要因素之一的结论。

Two explorers are silhouetted by the glow of lava in a volcanic crater.

火山口喷起的熔岩浆映出了两个探险者的身影。

When the magma cools and solidifies,volcanic rock. Reversals of the field give rise to a series of magnetic

岩浆冷却并凝固下来后,地磁场的方向和磁极被保留在磁化了的火山岩中。

During this period, the partial melting of young and hot subducted oceanic crust at 75-85km produced he adaktitic magma.

在这期间,年轻的热的洋壳俯冲至75-85km深度左右时发生部分熔融并形成埃达克岩浆

Places like the Himalayas are subducting, so that rock layers are being laid under one another, and protection from the lava occurs.

像喜马拉雅山脉之类的地方会缩减,其岩石层会层层堆积,就防止了岩浆的出现。

The carbon, hydrogen and helium isotopic compositions of volatile components displayed the characteristics of the fluid dehydrated from subducting slab.

岩浆中富气富水,气相组分的碳、氢、氦同位素组成具有俯冲板块脱失流体的特征。

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你知道吗,我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。