magma chamber

There were a partial melting layer of the upper crust or magma chamber for circulation and deposition of copper-bearing hydrothermal fluids;

要有上地壳的部分熔融层或岩浆房，以提供含铜热液的循环沉淀条件；

互联网摘选

When the enormous magma chamber at Santorini finally collapsed to form the existing caldera, enormous tsunamis ( tidal waves) spread outward in all directions.

圣多里尼火山的巨大岩浆房最后倒塌，形成了现有的喷火山口，巨大的海啸（潮汐波）向各个方面向外伸展。

互联网摘选

These factors include magma composition, convection, diffusion, thermal gradient, oxygen fugacity, temperature, pressure, the shape of magma chamber etc.

影响韵律形成的因素很多，通常包括岩浆成分、对流作用、扩散作用、热梯度、氧逸度、温度和压力等。

互联网摘选

Layered gabbro ( layered cumulate gabbro) was derived from magma chamber under ridge, thus its formation age records the generation of oceanic crust.

层状辉长岩（或堆晶层状辉长岩）通常起源于洋脊下的岩浆房，因而它的形成年龄代表洋壳形成的时代。

互联网摘选

The tomographic result shows that there is a P wave low velocity zone ( LVZ) in the upper crust beneath the Tengchong volcanic area. The LVZ is in the depth of 7~ 8 km and may be a small magma chamber or a partial melting body.

层析成像结果显示出，在腾冲火山区下方的上地壳内存在明显的P波低速区，该低速区在地下7～8km深度，可能与上地壳内的岩浆囊或部分熔融体有关。

互联网摘选