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- Both intrusive and extrusive igneous rocks can be further classified according to the differences of chemical and mineral compositions. 根据岩石中的化学成分和矿物成分差异，侵入岩和喷出岩可以作进一步的详细划分。
- Because they have been extruded or pored out on the earth's surface, igneous rocks from volcanoes are called extrusive igneous rocks. 因为这种火山岩是熔岩喷出地球表面而形成的，所以称之为喷出岩。
- * Contrast the formation of intrusive and extrusive igneous rocks. *对比形成的侵扰和挤压火成岩。
- 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。
- extrusive igneous rock 喷出火成岩
- Igneous rocks do not contain fossils. 火成岩不含化石。
- Containing little silica, as igneous rocks. 基性的基性的，含有比较少量的二氧化硅的作为火成岩的
- Containing little silica,as igneous rocks. 基性的基性的，含有比较少量的二氧化硅的作为火成岩的
- The most common intrusive in the order of igneous rocks is granite. 在火成岩系列中最常见的侵入体是花岗岩。
- An igneous rock consisting chiefly of pyroxenes. 辉岩主要由辉石组成的一种火成岩
- A dark, fine - grained igneous rock;diabase. 粗玄岩，辉绿岩一种暗色微粒火成岩；辉绿岩
- A dark,fine - grained igneous rock;diabase. 粗玄岩，辉绿岩一种暗色微粒火成岩;辉绿岩
- A dark,fine.- grained igneous rock;diabase. 粗玄岩，辉绿岩一种暗色微粒火成岩;辉绿岩
- So eruption of volcanoes is one way of producing igneous rocks. 那么火山喷发是形成火山岩的一种方式罗。
- A dark, fine-grained igneous rock; diabase. 粗玄岩，辉绿岩一种暗色微粒火成岩；辉绿岩
- Trap rock is a form of plutonic igneous rock. 暗色岩是一种火成岩。
- I wonder if there are further classifications of igneous rocks. 我想知道火成岩还有进一步的类型划分吗?
- Key points: texture, structure and classification of igneous rocks. 重点：岩浆岩的分类、结构和构造.
- The two most common types of igneous rocks are granite and basalt. 两种最普遍的火成岩是花岗岩和玄武岩。
- The mineral composition of a sample of igneous rock. 火成岩样品的矿物构成
