Metamorphic Rocks Flashcards
A Non-foliated metamorphic rock derived from fine-grained protoliths through metamorphic aureoles.
Hornfels
Distinguishing feature of Hornfels
Signs of Baking and Chiliing
A non-foliated metamorphic rock that contains >90% quartz
Metaquartzite or Quartzite
Protoliths of Metaquartzite
Sandstone or Chert (Quart-rich Protoliths)
A non-foliated metamorphic rock derived from limestone or dolostone protoliths through dynamothermal, burial, or contact metamorphism.
Marble
Distinguishing feature of Marble
Effervescent and Absence of Fossils
A non-foliated calc-silicate metamorphic rock formed through metasomatism of carbonate metamorphic rocks.
Skarn
Other name of Skarn
Tactite
Distinguishing feature of Skarn
Presence of Calc-silicate minerals (such as Garnets)
A non-foliated rock derived from metamorphism of sedimentary or igneous breccias through dynamic/dynamothermal metamorphism.
Metabreccia
Distinguishing feature of Metabreccia
Mineral and Glass Matrix
A non-foliated cohesive metamorphic rock produced by brittle deformation in low-temperature zones through dynamic metamorphism.
Cataclasite
A non-foliated glassy metamorphic rocks that commonly occur as vein material in cataclastic rocks
Pseudotachylite
Distinguishing feature of Pseudotachylite
Presence of Grains
A non-foliated cataclastic rock formed through tremendous short-term stresses (typically through meteorite impacts)
Impactites
