by Gelogia | 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...
by Gelogia | Jan 29, 2025 | Geology, Petrology
Non-foliated rocks are metamorphic rocks without a layered structure, forming under uniform pressure or due to mineral composition. Common types include marble, quartzite, hornfels, granofels, and amphibolite, each with unique textures and properties. What are...
by Gelogia | 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...
by Gelogia | 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...
by Gelogia | Jan 8, 2025 | Petrology
Regional metamorphism actively transforms rocks over substantial regions under the influence of excessive temperature and pressure. Unlike contact metamorphism, which occurs in localized zones, It accompanies large-scale tectonic activities, such as mountain-building...
by Gelogia | Jan 2, 2025 | Geology, Petrology, Structural Geology
Mudrocks are unusual sedimentary rocks that dominate Earth’s geological record. These fine-grained formations often hold valuable insights into our planet’s history and diverse ecosystems, though people often overlook them. In this article, we delve into...
