1 / 9

Metamorphic Rocks

Metamorphic Rocks. C. Metamorphic Rocks. change. Metamorphism means to ______. c hanges to …. shale. gneiss. heat. pressure. Form when a rock of any type (igneous, sedimentary, or metamorphic) is put under ____ and _______ to become a new metamorphic rock.

minh
Télécharger la présentation

Metamorphic Rocks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Metamorphic Rocks

  2. C. Metamorphic Rocks change • Metamorphism means to ______. changes to … shale gneiss

  3. heat pressure • Form when a rock of any type (igneous, sedimentary, or metamorphic) is put under ____ and _______ to become a new metamorphic rock. • The new metamorphic rock will be similar to its parent rock, but will be more _____ and less porous. dense

  4. Foliation 90 • Identification of Metamorphic rocks: • ________: is when minerals begin to line up at a ___degree angle to the direction of the pressure. Some minerals will have moved and changed into new types.

  5. Banding lined up bands • ________: is a type of foliation where enough minerals have ________ to make clearly visible ______. • These bands are not to be confused with the Layers of sedimentary rocks. If the rock has visible grains and particles, it is NOT metamorphic. • Metamorphic Banding will usually be curved, while Sedimentary Layers will usually be ____. flat

  6. Banding, Foliation, or Sedimentary Layers? Banding Sedimentary Layers Foliation

  7. Regional Metamorphism • Metamorphic rocks are formed in two ways: • _____________________: This happens under______ ________ as the rock is forced upward from the _______ of two crustal plates. This adds a great amount of ____ and _______ to the rock layers. The result is a high degree of _____________ (change). intense pressure collision heat pressure metamorphism

  8. Quartzite Sandstone changes into _________. Limestone changes into ______. Siltstone changes into _______. Shale changes into ____, then ______, then _______, then finally ______. Marble Hornfels Slate Phyllite Schist Gneiss

  9. Contact Metamorphism magma • ____________________: This is where an igneous intrusion (such as a ‘sill’) forces and melts its way through the layers of old rock. Where the ______ touches the other layers of rock, they become hot, changed and then _____________ by the intense _____. There is not much ________ applied here, which results in a lower metamorphic change. metamorphisize HEAT pressure

More Related