by Gelogia Team | Jul 27, 2025 | Petrology, Physical Geology, Structural Geology
Joints are natural cracks or fractures in rocks that form when stress exceeds the rock’s strength. Unlike faults, they show little or no movement along the fracture. Joints typically appear in sets with regular patterns and result from factors like rock type, stress...
by Gelogia Team | Jul 21, 2025 | Geology, Petrology
Soil structure refers to how soil particles arrange themselves within the matrix, which includes voids, fissures, and cracks. Several factors influence soil structure, such as the shape and size of particles, mineral composition, grain orientation, interactions...
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,...
by Gelogia Team | Mar 21, 2025 | Petrology
Petroleum evolves from organic matter through heat, pressure, and time. Initially, buried material transforms into kerogen (diagenesis). With deeper burial, kerogen breaks down into oil and gas (catagenesis). In the final stage, extreme heat converts hydrocarbons into...
by Gelogia Team | Mar 8, 2025 | Geology, Petrology
Natural Gas: Natural gas is a mixture of hydrocarbon (lower) that occurs in nature and exits in a gaseous state at ordinary pressure and temperature. It mainly contains methane (CH4 ), a small amount of ethane (C2H6), Propane (C3H8), and higher hydrocarbons like...
by Gelogia Team | Mar 7, 2025 | Geology, Petrology
Petroleum is an essential fossil fuel composed of a natural mixture of hydrocarbons, including crude oil, natural gas, and asphalt. Its form can range from gas to solid, influenced by the complexity of its carbon structure. This resource is crucial for energy...
