变质等级适用于火成岩、沉积岩吗?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 08 - 11 - t12:23:33z //www.hoelymoley.com/feeds/question/9581 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/9581 1 变质等级适用于火成岩、沉积岩吗? 约翰·罗尔斯 //www.hoelymoley.com/users/7425 2017 - 02年- 02 - t06:33:42z 2017 - 02 - 06 - t16:09:16z < p >变质等级适用于火成岩、沉积岩吗?< / p >

I know that grade of metamorphism applies to the scale in which a rock becomes crystallized. Or is it?

Please also define grade of metamorphism as a clarification.

//www.hoelymoley.com/questions/9581/-/9587 # 9587 1 答案由Gimelist变质等级适用于火成岩、沉积岩吗? Gimelist //www.hoelymoley.com/users/725 2017 - 02 - 03 - t11:06:34z 2017 - 02 - 03 - t11:06:34z < p >我不确定我完全理解你的问题,但是我要走了。< / p >

Does grade of metamorphism apply to igneous and sedimentary rocks?

Yes. Both igneous and sedimentary rocks can be metamorphosed. For example, a high grade metamorphic rock of the amphibolite facies could have been originally either a sedimentary rock or an igneous rock. It's not always straightforward to figure out if it was one or the other. Note that because igneous rocks already consist of "high-grade" minerals such as pyroxenes, amphiboles, feldspars, etc., and their grain size is already occasionally coarse, it may not be obvious than an igneous rock have been metamorphosed. Sometimes it takes a closer look to distinguish a metamorphic igneous rock and just an igneous rock. Sedimentary rocks, on the other hand, are originally composed of clays and other "low-grade" minerals so it's obvious when one is metamorphosed. A metamorphic fabric (foliation and the likes) is also much easier to develop in originally sedimentary rocks than in igneous rocks.

I know that grade of metamorphism applies to the scale in which a rock becomes crystallized. Or is it?

I'm not sure what the question is. Usually higher grade metamorphic rocks have larger grain size. For example, greenschist facies rocks are commonly fine grained (for example phyllites or schists) whereas eclogite facies rocks are usually composed of big beautiful crystals, sometimes in the cm scale.

Please also define grade of metamorphism as a clarification.

Start here:

Metamorphic grades

//www.hoelymoley.com/questions/9581/-/9598 # 9598 1 把手抓扒者回答的变质等级适用于火成岩、沉积岩吗? 旋钮刮子 //www.hoelymoley.com/users/7333 2017 - 02 - 06 - t16:09:16z 2017 - 02 - 06 - t16:09:16z < p >变质“年级”只适用于变质岩;“年级”指的是多大的压力和温度的岩石,沉积岩、火成岩,甚至变质,已经被接受。< / p > < p >这是推导出注意的特定矿物的存在:在沉积岩关键温度和压力会产生特定的矿物质,火成岩,一系列不同的矿物质。比晶体的大小,更重要的是原岩的程度一直在注意的再结晶变质的年级。< / p >
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