by Gelogia Team | Feb 16, 2025 | Structural Geology
What is Fabric: Fabric means the orientation of grains. It is a property of grain aggregates. Any non-spherical object has an orientation. Features that are larger than single grains but smaller than sedimental structures. Types of Fabric: Generally, there are two...
by Gelogia Team | Feb 15, 2025 | Physical Geology & Geomorphology
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 & Geomorphology
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 13, 2025 | Economic Geology
Grain size classifies sedimentary particles from coarse gravel to fine clay using scales like Udden’s and Atterberg’s. Analysis methods include direct measurement, sieving, microscopy, and settling tubes, based on particle size. Understanding grain size helps in...
by Gelogia Team | Feb 13, 2025 | Structural Geology
When analyzing sediment, a percentile helps determine the grain size at a specific weight percentage. It’s found by plotting data on a cumulative curve and is essential for understanding sediment distribution. By using histograms, probability curves, and frequency...
