by Gelogia | Jan 19, 2025 | Physical Geology & Geomorphology
Contact Metamorphism is a type of metamorphism of a local extent that affects the country rocks around the magma bodies injected along fractures or natural zones of weakness between rock layers. The magmas are the sources of heat, mass, and mechanical energy necessary...
by Gelogia | Nov 15, 2022 | Petrology, Uncategorized
Metamorphic Textures Small-scale features that occur in virtually all of the rock body at the microscopic scale The term ‘Fabric’ is also used synonymously. As the rock-forming processes differ among types of metamorphism, the resulting texture is also different....
by Gelogia | Nov 5, 2022 | Petrology
Classification Contact Metamorphism Pyrometamorphism Regional Metamorphism Orogenic Metamorphism Burial Metamorphism Ocean Floor Metamorphism Hydrothermal Metamorphism Fault-Zone Metamorphism Impact or Shock Metamorphism 1. Contact Metamorphism Temperature is the...
by Gelogia | Nov 4, 2022 | Petrology
Four types of Metamorphic agents Temperature Pressure Directive stress Chemically active fluid/metamorphic fluids Temperature In regular continental crust, a typical geothermal gradient within the first 3 to 5 kilometers (2 or 3 miles) of Earth’s surface is...
by Gelogia | Nov 1, 2022 | Petrology
What is Metamorphism? The term metamorphism comes from the Greek (meta morph), meaning “change of form. The International Union of Geological Sciences (IUGS) defined Metamorphism as – “a process involving changes in the mineral content/composition and/or...
