What type of rock forms due to heating and cooling? Which kind of magma produces a quiet volcanic eruption? What process forms igneous rocks? What happens when magma meets water? How do landforms from magma form and become exposed? What does it mean when magma freezes?
百度试题 结果1 题目What is volcanic rock formed from? A. Water B. Air C. Magma D. Soil 相关知识点: 试题来源: 解析 C。解析:文章开头提到“Volcanic rocks are formed when magma from deep inside the earth comes out.”。 反馈 收藏
The appearance of the rock is created by the composition of the magma. It is also determined by the rate that the magma cools. If the magma cools deep underground, it cools slowly.If the magma cools at or very near the surface, it cools quickly. At what temperature does rock melt? The...
What happens to rock around a subducting slab? What type of boundary do the Rocky Mountains form? What force is present at a convergent boundary? How does rill erosion occurs? What type of boundary is caused by subduction? How did the Taconic orogeny occur?
What type of grains is igneous rock made from? What minerals are found in gabbro? What is the mineral composition of igneous rocks? What is magma made of? What are chemical sedimentary rocks? How are glacial striations formed? What is the difference between marble and granite? How does sands...
Why does magma rise from depth to the surface of the earth? What type of boundary creates new oceanic crust? What happens to metamorphic rock when it melts? Which volcanoes are located along diverging plate boundaries? What volcanoes are located along spreading plate boundaries? What are the thr...
Alkali magmatites from the 94 Ma old Magnet Cove Igneous Complex (MCIC) include aphanites and phanerites of insufficient mineralogical and chemical characterization. Main reasons are the small grain size of the minerals and the presence of a hydrothermal alteration mineralogy. Both make the ...
Nij: So, magma is all just melted rocks under the ground? Heather: Yeah, we call it molten rock. It's full of different elements like iron and calcium. Nij: Hmm, sounds nutritious. Kids: You can't eat it, Nij Nij: Oh! How does it turn into hard rocks? Heather: When it's too...
Rocks, cliffs and quarries, not much for most of us to look at, but for paleontologist (古生物学者) Andrew Knoll, they are radiant with meaning, telling a story. That tale is Earth’s history — how the planet went from a rock covered in magma (岩浆) oceans to a green and blue or...
equigranular -consisting of minerals or clasts of approximately the same size. extrusive - equivalent of volcanic, i.e. erupted. What type of rock is equigranular? Equigranular Texture Rocks with equigranular ("EC-wi-GRAN-ular") have mineral grains that are generally the same size. This exam...