on April 16, 2022
What is the difference between a shake hole and a swallow hole?
GeologyThey form where drift material falls into joints which have been enlarged and widened by chemical solution. The hollows are called dolines or shake holes. The shake hole is then eroded by streams and a vertical hole known as a pothole or swallow hole is formed. What is the difference between sink hole and swallow
on April 16, 2022
How is an active continental margin formed?
GeologyActive continental margins are typically narrow from coast to shelf break, with steep descents into trenches. Convergent active margins occur where oceanic plates meet continental plates. The denser oceanic crust of one plate subducts below the less dense continental crust of another plate. How are active and passive margins formed? A passive margin is the
on April 16, 2022
What is rhyolite used for today?
GeologyRhyolite is suitable as aggregate, fill-in construction, building material and road industries, decorative rock in landscaping, cutting tool, abrasive and jewelry. Where is rhyolite found in the United States? Rhyolite, Nevada Rhyolite Etymology: rhyolite, a type of volcanic rock Rhyolite Location within the state of Nevada Show map of Nevada Show map of the United
on April 16, 2022
In which setting would regional metamorphism be most likely and prevalent?
GeologyIn which setting would regional metamorphism be most likely? At great depths in the crust where two continents are colliding. In what setting would regional metamorphism be most likely? Most regional metamorphism takes place within continental crust. While rocks can be metamorphosed at depth in most areas, the potential for metamorphism is greatest in the
on April 16, 2022
How do air domes work?
GeologyAir pressure is strong, and so are domes. Just like a tire, the air pressure in a dome keeps the walls up. Instead of a car, though, a dome holds up against air pushing back down on it and the force of gravity. How long do air domes last? 15 to 20 years When properly
on April 16, 2022
What is clastic reservoir?
Geology1 Clastic Reservoirs. Clastic rocks are defined as being composed of consolidated sediments formed by the accumulation of fragments derived from preexisting rocks and transported as separate particles to their places of deposition by purely mechanical agents. What are clastic reservoir rocks? [′klas·tik ′rez·əv‚wär] (geology) An underground oil or gas trap formed in clastic limestone.
on April 16, 2022
How are stalactites formed in caves?
GeologyStalactites and stalagmites form when rainwater drips through limestone rock. Along the way, it picks up carbon dioxide, from the air and from any organic matter it passes as it dribbles down, according to the National Park Service. The carbon dioxide reacts with the water to make a weak acid called carbonic acid. How are
on April 16, 2022
Do geysers cause earthquakes?
GeologyThe operators of the geothermal field are withdrawing mass (steam boiled from water) and heat, both of which cause the surrounding rock to contract, which in turn can induce earthquakes as a result of the contractional stresses. What causes earthquakes? Earthquakes are the result of sudden movement along faults within the Earth. The movement releases
on April 16, 2022
How do you shear a wall?
GeologyWhat are shear walls and how do they work? A shear wall is a general term for a wall that is designed and constructed to resist racking from forces such as wind using masonry, concrete, cold-formed steel, or wood framing. Shear walls significantly reduce the sway of a structure to reduce damage to the structure
on April 16, 2022
What are the types of sediments?
GeologyThere are three types of sediment, and therefore, sedimentary rocks: clastic, biogenic, and chemical, and we differentiate the three based on the fragments that come together to form them. Let’s take a look at the first type mentioned, which was clastic. Clastic sediments are composed of fragments of rock. What are the 4 types of