by Gelogia Team | Jun 13, 2025 | Geology
What Are Terranes? Terranes are fault-bounded crustal blocks that have distinct lithologic and stratigraphic successions and geologic histories different from those of neighboring terranes (Schermer et al., 1984). Most terranes have collided with continental...
by Gelogia Team | Jun 12, 2025 | Physical Geology
Ophiolites: Ophiolites are tectonically emplaced successions of mafic and ultramafic rocks that are considered to represent fragments of oceanic or back-arc basin crust (Coleman, 1977; Moores, 1982). Units of Ophiolites: An ideal ophiolite includes from bottom to top...
by Gelogia Team | Jun 11, 2025 | Physical Geology
Convergent margins are among the most powerful and dynamic geological features on Earth. They are the places where two tectonic plates move toward each other, creating immense forces that shape the planet’s surface over millions of years. These plate...
by Gelogia Team | Jun 1, 2025 | Hydrology
Classification of Aquifers: Geologically, they can be classified based on the age and composition of the sediments or rocks that host them. The four main types are: Holocene Aquifers Late Pleistocene-Holocene Aquifers (Unconsolidated to semi-consolidated):...
by Gelogia Team | May 31, 2025 | Petrology
Radiometric Dating: Introduction and Principles In the early part of the 20th century, scientists discovered radioactivity and the radiogenic decay of isotopes, which opened the way for dating rocks by an absolute rather than a relative method. Up to that time,...
