on April 2, 2022
How did the Ozark Plateau form?
GeologyThe region is characterized by wooded, rolling hills formed by the erosion of an uplift called the Ozark Dome. Soils in the region, formed mostly from the weathering of carbonate rocks, support forests of oak, pine, and hickory. How did the Ozark Mountains form? The Ozarks were formed in a different way. They are the
on April 2, 2022
Is Fernando Vargas still alive?
GeologyWhat happen to Fernando Vargas? Vargas, now 40, lives in Las Vegas and is married with four children. He is still involved in boxing, training two of his sons – both of whom are promising amateurs (“The legacy lives on,” said Vargas) as well as several pros. He has established the Fernando Vargas Fighting Foundation
on April 2, 2022
What are the two mechanical layers of the earth?
GeologyMechanical Layers Layer Depth Lithosphere 0-100 km Asthenosphere 100-350 km Soft plastic *note: The mantle is not liquid! Mesosphere 350-2900km stiff plastic Outer Core 5100-6370 km solid What are earth’s 2 main layers? The Earth’s Structure The crust. This is the outside layer of the earth and is made of solid rock, mostly basalt and
on April 2, 2022
What causes poorly sorted sediment?
GeologyStream deposits are usually poorly sorted because the energy (velocity) in a stream varies with position in the stream and time. Where is poorly sorted sediment found? At the end of a glacier, where ice is melting as fast as it is being supplied from upstream, the sediments are deposited in a terminal moraine, a
on April 2, 2022
What has the biggest effect on the viscosity of lava?
GeologyTemperature: The hotter the lava, the lower the viscosity (the thinner it is). The cooler the lava, the higher the viscosity (the thicker it is). Composition: he more felsic the lava (the more silica in the lava), the higher the viscosity because silica forms chains in the cooling lava even before it crystallizes. What increases
on April 2, 2022
Which mineral is found in rhyolite and andesite?
GeologyThe mineral assemblage is predominantly quartz, sanidine, and plagioclase. It is the extrusive equivalent to granite. Magma with the composition of rhyolite is extremely viscous, due to its high silica content.…Rhyolite. Composition Secondary Biotite and hornblende Which mineral can be found in all sample of rhyolite and andesite? Andesite is always rich in plagioclase, and
on April 2, 2022
Where is tufa rock found?
GeologyTufa, the unusual rock formations that jut out of Mono Lake in California’s Eastern Sierra, are famous for their otherworldly beauty. The greatest concentration of these unique “towers” is located at the south end of the lake. In the photo above, the moon rises over one of the dark ivory towers. How does a tufa
on April 2, 2022
How are the agents of weathering similar and different?
GeologyHow are the agents of weathering the different? Agents responsible for weathering include ice, salts, water, wind and plants and animals. Road salt and acids represent a form of chemical weathering, as these substances contribute to the wearing away of rocks and minerals as well. What are the similarities of weathering? Both weathering and erosion
on April 2, 2022
What produces a reverse fault?
GeologyA tilted block that lies between two normal faults dipping in the same direction is a tilted fault block. Reverse dip-slip faults result from horizontal compressional forces caused by a shortening, or contraction, of Earth’s crust. The hanging wall moves up and over the footwall. What produces a reverse fault explain how? In a reverse
on April 2, 2022
What is the color of onyx?
GeologyOnyx is a variety of chalcedony that exhibits parallel bands of color, primarily black or white. Natural black onyx does exist, although it is rare. What is the natural color of onyx? Onyx Information Data Value Refractive Index 1.544-1.553 Colors Black, white (banded). Varieties may show red, brown, yellow, and blue layers. Solid black onyx