Intergrowth Texture and Its Common Types

Intergrowth Texture and Its Common Types

by | Feb 12, 2025 | Petrology

Intergrowth texture forms when two minerals crystallize together or through exsolution in igneous rocks. Common types include graphic, myrmekite, exsolution, cavity, radiate, reaction, and pegmatite textures, each revealing mineral interactions and cooling history....
Types of Metamorphic Texture

Types of Metamorphic Texture

by | Feb 10, 2025 | Petrology

Types of Metamorphic Texture form due to varying pressure and temperature conditions. They are classified into foliated (slaty, schistose, phyllitic, gneissic) and non-foliated (granulose, mylonitic, hornfelsic) textures. Other textures like augen, porphyroblastic,...
Types of Protoliths

Types of Protoliths

by | Feb 1, 2025 | Petrology

Types of Protoliths: The following rock properties allow the recognition of protoliths: Relict fabrics: In low-grade metamorphic rocks where recrystallization has not created large new grains or substantial deformation has not taken place, boundaries of original...
Types of Deviatoric Stress

Types of Deviatoric Stress

by | Jan 26, 2025 | Petrology

Deviatoric Stress or Directed Pressure: Deviatoric stress is produced by tectonic forces in the Earth, such as plate motions; this pressure brings about change to produce foliations and lineation’s. This is commonly represented in terms of three stress values in the...
Application of Sedimentology

Application of Sedimentology

by | Jan 24, 2025 | Petrology

Sedimentology, the study of sedimentary rocks and their formation, is essential in geology. Its applications span engineering, petroleum, hydrogeology, economic geology, environmental science, and paleontology. What is Sedimentology? There is a term called...