by Gelogia Team | Feb 25, 2025 | Physical Geology
Modes of transportation: There are three modes of transportation of sedimentary particles: Traction Siltation Suspension Traction: Commonly, sediment grains larger than sand size are transported as part of the bed load in essentially continuous contact with the bed....
by Gelogia Team | Feb 15, 2025 | Physical Geology
Types of evolution shape how species change over time. Divergent evolution splits one species into two, convergent evolution causes unrelated species to develop similar traits, and parallel evolution leads separate species in the same environment to evolve alike....
by Gelogia Team | Feb 14, 2025 | Physical Geology
Sphericity measures how closely a particle’s shape resembles a sphere. It helps in understanding grain durability, transport history, and geological processes. A perfect sphere has a sphericity of 1.00, while other shapes have lower values. This concept is crucial in...
by Gelogia Team | Feb 11, 2025 | Physical Geology
The textures of igneous rock define their crystallinity, grain size, and crystal relations, reflecting their cooling history and formation conditions. Various types of textures of igneous rock: (A) Crystallinity: Defines the degree of crystallization. Holocrystalline:...
by Gelogia Team | Feb 11, 2025 | Physical Geology
Deposition definition refers to the process where transported sediments settle due to changes in fluid flow. Hjulstorm’s diagram illustrates its control by velocity and turbulence. Coarser particles settle near the source, while finer ones travel farther,...
by Gelogia | Jan 23, 2025 | Physical Geology
The types of oceanic gyres provide important information about ocean movement and its consequences on the planet. Wind patterns and the Earth’s rotation push large, round water structures known as oceanic gyres. We classify them into subtropical gyres, which dominate...
