Metamorphic Rocks notes
13 notes by 4 users
This Metamorphic Rocks notes page gathers community-made notes on cleavage, textures, identification and contact and regional metamorphism. It supports university students and school students studying these topics, and teachers looking for material to use in lessons. There are over 10 notes across university and school levels. Pick a note to begin.
Notes
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Slaty Cleavage The origin of cleavageIncompetent sedimentary rocks such as mudstone contain clay minerals. When these rocks are heated and compressed, the minerals begin to recrystallise. They usually recrystallise as micas or mica ...
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Regional Metamorphic Zones Mapping the Dalradian Supergroup In 1893, George Barrow mapped a sequence of highly deformed regionally metamorphosed rocks in the south eastern part of the Scottish Highlands. The metamorphism and deformation occurre...
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Extras for quiz 5 Extras for quiz 5: Metamorphic rocks (meta = change; morph = form) are those in which the constituent minerals have changed from a previous state while they are still in a coherent solid state. Igneous ...
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Contact Metamorphism Contact metamorphism occurs when the country rock is affected by heat from a large igneous intrusion. Because temperature differences between the surrounding rock and the intruded magma are greater at shallow levels i...
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Temperature, Pressure and Metamorphism Metamorphism is the isochemical process by which rocks are changed by heat or pressure or both. Chemical composition of the parent rock will be the same as the metamorphic rock produced. Rock undergoes slow process of...
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Metamorphic Textures Slaty CleavageRocks with slaty cleavage will split into thin sheets along the cleavage planes. It occurs in fine grained rocks formed by low grade regional metamorphism. it can only form in rocks consisting of platy m...
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Contact Metamorphism 2 The thermal gradient and index minerals in a metamorphic aureoleWhen a batholith is intruded into beds of shale, increases in metamorphic grades are marked by the appearance of an index mineral: index minerals are met...
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Module 6 Metamorphism: A Process of Change Metamorphism: Solid-state transformation of existing rocks (protoliths) High heat, pressure, & chemically active fluids Occurs deep in Earth's crust Changes rocks minerolo...
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Regional Metamorphism Most regional metamorphism is accompanied by deformation, so these metamorphic rocks will have foliated textures.Regional metamorphism and plate tectonicsRegional metamorphism results from both heat and pressure gener...
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Identifying Metamorphic Rocks Unfoliated rocks produced by contact or regional metamorphismQuartziteParent rock of quartzite is orthoquartzite, sandstone composed of quartz grains held together by quartz cement. Quartz grains in the sandstone recr...
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Identifying Regional Metamorphic Rocks Foliated rocks produced by regional metamorphismThese rocks have all been affected by pressure to some degree during regional metamorphism. Any platy minerals will have taken on a preferred alignment known as foliatio...
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10/19/17 - Metamorphic Rocks Metamorphic Rocks Metamorphism - Change in a solid state Processes - pressure and minerals tells you about the history of that environment Protolith - Original form of rock Metamorphism - rearranging what is already t...
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ESN 303 Metamorphism is the process leading to changes in the mineralogy and/or structure and/or chemical composition in a rock. These changes are due to physical and/or chemical conditions that differ from those normally occ...
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About metamorphic rocks notes
GoConqr OriginalUsing Metamorphic Rocks notes
These notes let you focus on a particular feature or process. Start with Metamorphic Textures if you want to review how rocks can split along cleavage planes. Then read Slaty Cleavage for more on how cleavage develops.
For identification, compare Identifying Regional Metamorphic Rocks, which discusses foliated rocks, with Identifying Metamorphic Rocks, which includes unfoliated rocks such as quartzite. The notes also cover contact metamorphism, regional metamorphic zones, and the roles of temperature and pressure.
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Frequently asked questions
Which note could I start with?
Metamorphic Textures is a useful starting point if you want to focus on features you can recognise. It describes slaty cleavage and how rocks can split along cleavage planes. You can then read Slaty Cleavage for more detail on how that feature develops.
What topics do these notes cover?
The notes cover textures, cleavage and identifying metamorphic rocks, as well as contact and regional metamorphism. There are also notes on regional metamorphic zones and on temperature and pressure. You can choose a specific topic or compare related notes as you revise.
Are the notes free to use?
Yes. Every resource listed here is free to open and study without an account. The notes were made by GoConqr users. A free account also lets you save quiz scores and make your own quizzes, mind maps, flashcards and notes.