帮忙 翻译一篇英文文章Igneous rocks are generally very hard. because they are form a molten mass of rock mater called magma. The magma, which can be seen on the surface of the Earth as lava, consists of complex mixtures of chemicals. As the magma moves through cracks in the Earth' s surf...
Rocks (form) within Earth are called intrusive or plutonic rocks (because the) magma (from which) they form often intrudes into (neighboring) rock. A. form B. because the C. from which D. neighboring 相关知识点: 试题来源: 解析 A ...
What type of rock is oolitic limestone? What is plagioclase feldspar? Where does marble form? What are the most common igneous rocks found in ophiolites? Is marble caused by contact metamorphism? What type of rock is limestone? What type of rock is geode? How hard is quartzite? Is gneiss ...
Metamorphic rocks areformed from other rocks that are changed because of heat or pressure. They are not made from molten rock – rocks that do melt form igneous rocks instead. Earth movements can cause rocks to be deeply buried or squeezed. As a result, the rocks are heated and put under ...
Plates Collide When two plates carrying continents collide,the continental crust buckles and rocks pile up, creating towering mountain ranges. ... The Himalayas are still rising today as the two plates continue to collide. The Appalachian Mountains and Alps also formed in this way. ...
Of the two, quartz is more environmentally friendly than granite. Because it’s made from crushed rock, you can use smaller chunks. Additionally, manufacturing quartz uses waste products from other industries, reducing waste and the need to mine more rocks. ...
At an ocean-ocean convergent boundary, one of the plates (oceanic crust and lithospheric mantle) is pushed, or subducted, under the other (Figure 4.6. 1).