1. METAMORPHIC ROCKS By: Franco Gaite geotripperimages.com

2. met·a·mor·phic rocks  1 of three rock types  Rock undergone transformation  Densest rock type  Early 19 th century  meta + morphē + ic the-eo-scene.blogspot.com

3. meta·mor·phism Clipartpanda.com  Transformation of rock nature M  Pressure, heat & water IS OR

4. Parent rock  A.K.A. protolith  Any of the three types  Original un-metamorphosed rock  Bulk Chemical Composition a. P and T reached during metamorphosis b. Composition of fluid phase present c. The bulk chemical composition Physicalgeography.net

5. METAMORPHIC GRADE Geosci.ipfw.edu

6. Low grade  Low pressure and temperature  Takes place between 200° C to 320° C  Characterized by abundance of hydrous minerals. Sodahead.com metamorphism

7. High grade  Takes place somewhere higher than 320° C  Grade increases = less hydrous minerals  Mineral recrystallization accidentlydelish.com metamorphism

8. Contact metamorphism  Rocks around magma bodies  May or may not be accompanied by deformation  Caused by heat transfer from intruded magma youtube.com

9. Regional metamorphism  Large area (mountain ranges)  Orogeny  Convergent zones  Intense heat and pressure prezi.com

10. Heat  200° C  Transformed using available elements and compounds  600° C to 1,200° C  Geothermal gradient ( T D )  Rising magma as a source of energy breathcast.com

11. Geothermal gradient  Noun  Increasing T & P with increasing depth

12. Pressure  Weight of overlying objects  Reorientation of mineral crystals  Tectonic processes can affect leblogdumanagementdeprojet..com Confining pressure ( P D )

13. Water  Found in small amounts along with CO 2  Between pores & crystals  ENHANCES metamorphism  Dissolves ions by chemical reactions  Creates new minerals from chemical ions Uncle-grandpa.wikia.com

14. Foliated rocks  Mineral alignment or banding  Regional-Intense Pressure  Increasing metamorphic grade = intensity of foliation increases  At higher grade, the rocks are coarser grained

15. 1) Shale 2) Slate 3) Phyllite 4) Schist 5) Gneiss TEMPERATURE & PRESSURE

16. Slate  Dark gray or red  Breaks into thin flat layers  Roofing and floor tiles Wikipedia.org

17. Phyllite  Layers aren’t flat  Wave-like pattern  Silky appearance virtualmicroscope.org

18. Schist  Distinct sparkle  Mica crystals  Garnet crystals or staurolite crystals = bumpy surface Wikipedia.org

19. Gneiss  Highly metamorphosed  Almost a granite  Lenses of feldspar  Ribon-like pattern squarespace.com

20. Non-foliated  Form through Contact metamorphism  Dependent on the precursor’s composition  Identified on the basis of composition  No mineral alignment  Monomineralic

21. Marble  Metamorphosed limestone  Recrystallized  Color & texture  White to Pink to Brown and Black ebay.com

22. Quartzite  Metamorphosed sandstone  Grains are tightly cemented  If quartzite is broken in half, It also cuts the individual sand grains geology.about.com

23. Serpentine  Olivine  Pyroxene  Light green to dark green  Veins and fractures earthphysicsteaching.homestead.com

24. Hornfel  Dark shale  Siltstone  Basalt  Light gray to dark black wikimedia.com

26. RESEARCH REFERENCES  https://www.bgs.ac.uk/scmr/docs/papers/paper_2.pdf  http://www.tulane.edu/~sanelson/eens212/typesmetamorph.htm  https://www.google.com.ph/search?q=low+grade+metamorphism&oq=Low+ grade+meta&aqs=chrome.2.0j69i57j0l4.6383j0j7&sourceid=chrome&es_sm =93&ie=UTF-8  http://skywalker.cochise.edu/wellerr/GLG101/GLG101-metamorphic- rocks.htm  http://www.geosci.ipfw.edu/PhysSys/Unit_4/metam.html  http://www.ck12.org/user:bWlyYW5kYS5rdXJiaW5Abmtjc2Nob29scy5vcmc./ book/NKCS-6th-Grade-Science-Rocks-Minerals/section/5.0/  http://www.physicalgeography.net/fundamentals/10g.html  http://www.mineralogy4kids.org/rock-cycle/metamorphic-rocks  https://www.youtube.com/watch?v=kRUwchlza88

27. PICTURE REFERENCES  https://prezi.com/n1ucheceduna/plate-tectonics/  http://www.mineralogy4kids.org/rock-cycle/metamorphic-rocks  http://geotripperimages.com/Tectonic_Processes/Unconformities.htm  http://the-eo-scene.blogspot.com/2013/07/sed-head-sedimentary-roxx.html  http://earthphysicsteaching.homestead.com/Shale.html  https://en.wikipedia.org/wiki/Slate  http://www.virtualmicroscope.org/content/phyllite-kilmacrenan  https://en.wikipedia.org/wiki/Schist  https://www.emaze.com/@AOLCZCQZ/Metamorphic-Rocks.pptx  http://tayloralpine.squarespace.com/tayloralpine-blog/tag/ctam  http://geology.about.com/od/rocks/ig/metrockindex/rocpicquartzite.htm

28.  hhttp://www.ebay.com.au/itm/161155121981  https://commons.wikimedia.org/wiki/File:Hornfels_8.JPG  http://earthphysicsteaching.homestead.com/Minerals-of-the-Serpentine- Group.html  http://leblogdumanagementdeprojet.com/category/rendez- vous/webinars/page/2/  http://www.breathecast.com/articles/miami-heat-nba-news-rumors-2014- possible-powerhouse-partners-for-pf-chris-bosh-22868/  http://www.clipartpanda.com/categories/rocks-and-minerals-clipart  http://uncle-grandpa.wikia.com/wiki/File:Water-droplet-icon-black.jpg  http://www.physicalgeography.net/fundamentals/10g.html  https://www.pinterest.com/explore/geology-humor/

29. THANKS FOR LISTENING!!