Introduction You may have had to tax the brain hard in classes while understanding the difference between power splitters and power dividers. Divide/split, sounds about the same, right? A three-resistor divider may be a little hard to tell apart from a two-resistor splitter other than this seemingly easy count and their blameworthy, almost similar-looking appearances … Read more
Coquina Definition Coquina is a detrital carbonate sedimentary rock composed wholly or chiefly of mechanically sorted fossil debris that experienced abrasion and transport before reaching the depositional site. Wentworth (1935) recommended a particle size greater than 2 mm. What type of rock is coquina? Coquina is a type of sedimentary rock that is primarily composed … Read more
The cycle of opening and closing ocean basins is known as the Wilson Cycle. The term Wilson Cycle named after J. Tuzo Wilson who first described it in 1966. A Wilson Cycle begins with rifting and seafloor spreading followed by the opening of an ocean basin with passive continental margins on both sides, then closing … Read more
Porosity is the percentage of the bulk volume of a rock or soil that is occupied by interstices, whether isolated or connected. Effective porosity is the percent of the total volume of a given mass of soil or rock that consists of interconnected interstices. Types of Porosity Primary porosity is the porosity that developed during … Read more
What is lake? Any inland body of standing water occupying a depression in the Earth’s surface, generally of appreciable size (larger than a pond) . The water may be fresh or saline. The term includes an expanded part of a river, a reservoir behind a dam, or a lake basin intermittently or formerly covered by … Read more
Weathering is the breakdown and alteration of rocks at Earth’s surface through physical and chemical reactions with the atmosphere and the hydrosphere. Weathered rock or minerals will break down into smaller units and eventually disintegrate into even smaller particles. This takes place in two major ways: physical (or mechanical) and chemical weathering; to a lesser … Read more
Gold is a precious metal. Gold was used by almost all the major civilizations in the world. For most culture, both past and present, it has been of a great economic importance. Gold has historically been the only universally accepted medium of exchange. What makes gold so valuable? The most important is its rarity, although … Read more
Igneous Rocks are formed by cooling or solidification of molten or partly molten material, i.e. from a magma or lava. Igneous rocks are first formed rocks which had made up the primodial earth’s crust. For this reason, they are called primary rocks. Origin of Igneous Rocks The igneous rocks are formed at high temperature directly … Read more
Ore is aggregate of minerals and that can be can be economically extracted from the rock. Examples : Galena (Lead Ore) Ore Deposit An ore deposit is an accumulation of a particular ore or more than one ore. Most ore deposits are named according to their location (for example, Tummalapalle Uranium Deposit, India), or after a … Read more
Aligarh is one of historical city in western Uttar Pradesh, India. It forms a part of the Central Ganga Basin and is underlain by the alluvium comprising clay, silt, sand and gravels of Quaternary age.The Indo-Gangetic Plain is the extensive alluvial plain of the Ganga, Indus and Brahmputra rivers and their tributaries and separates the … Read more