Metamorphic rock - Wikipedia
网页Metamorphic rocks are formed when existing rock is transformed physically or chemically at elevated temperature, without actually melting to any great degree. The importance of heating in the formation of metamorphic rock was first noted by the pioneering Scottish naturalist, James Hutton, who is often described as the father of modern geology.
What are metamorphic rocks? | U.S. Geological Survey - USGS.gov
网页Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
Metamorphic rock | Definition, Formation, & Facts | Britannica
网页2024年8月29日 · Metamorphic rock, any rock that results from the alteration of preexisting rocks in response to changing conditions, such as variations in temperature, pressure, and mechanical stress, and the addition or subtraction of chemical components. The preexisting rocks may be igneous, sedimentary, or other metamorphic rocks.
Metamorphic Rocks - National Geographic Society
网页2023年10月19日 · Any rock type can become any other. rock formed from fragments of other rocks or the remains of plants or animals. elevation of the Earth's surface due to tectonic or other natural activity. Metamorphic rocks start as one type of rock and—with pressure, heat, and time—gradually change into a new type of rock.
Metamorphic Rocks – Formation, Types, Examples - Science Notes …
网页2024年2月24日 · Metamorphic rocks start out as other rocks that undergo physical and chemical changes due to extreme conditions deep in the Earth’s crust. Metamorphic rocks represent one of the three major classes of rocks, the others being igneous and sedimentary. Each class has its unique formation processes, characteristics, and significance in Earth’s geology.
Metamorphism | Types, Processes & Effects | Britannica
网页metamorphism, mineralogical and structural adjustments of solid rocks to physical and chemical conditions differing from those under which the rocks originally formed. Changes produced by surface conditions such as compaction are usually excluded. The most important agents of metamorphism include temperature, pressure, and fluids.
变质岩 - 维基百科，自由的百科全书
网页变质相（metamorphic facies）是在一定的温度和压力范围内，不同成分的 原岩 经变质作用后形成的一套矿物共生组合引。 变质相首先由 芬兰 的P.埃斯克拉于1920年提出。 他指出，在恒定的 温度 、 压力 条件下，通过变质而达到 化学平衡 的任一 岩石 的矿物组成受原岩总化学成分的控制，而与原岩的形成方式无关。 榴輝岩. 蓝片岩. 绿片岩. 葡萄石 - 绿纤石. 浊沸石. 麻粒岩. 角閃岩. 角岩. 透長岩. 壓力. (千帕) 温度 (摄氏度) 自然界. 不存在. 0. 100.
METAMORPHIC中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页metamorphic. adjective. geology specialized uk / ˌmet.əˈmɔː.fɪk / us / ˌmet̬.əˈmɔːr.fɪk /. Add to word list. (of rock) changed into a new form and structure by very great heat and …
Metamorphic Rock Types: Pictures and Descriptions - ThoughtCo
网页2019年5月10日 · Metamorphic rocks are an important topic in geology. These are the rocks that form by the effects of heat, pressure, and shear upon igneous and sedimentary rocks. Some form during mountain-building by forces of others from the heat of igneous intrusions in regional metamorphism others from the heat …
What are metamorphic rocks? | American Geosciences Institute
网页Metamorphic rocks are rocks that have become changed by intense heat or pressure while forming. In the very hot and pressured conditions deep inside the Earth’s crust, both sedimentary and igneous rocks can be changed into metamorphic rock. In certain conditions these rocks cool and crystallize usually into bands of crystals.