on April 16, 2022
How are rocks classified?
GeologyRocks are classified according to characteristics such as mineral and chemical composition, permeability, texture of the constituent particles, and particle size. These physical properties are the result of the processes that formed the rocks. How do you classify rocks? CLASSIFICATION The classification of rocks is based on two criteria, TEXTURE and COMPOSITION. The texture has
on April 16, 2022
What are the 3 plate boundaries?
GeologyMovement in narrow zones along plate boundaries causes most earthquakes. Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform. What are the 3 types of plate boundaries and how do they move? The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent,
on April 16, 2022
How is rhyolitic magma formed?
GeologyRhyolitic magma forms as a result of wet melting of continental crust. Rhyolites are rocks that contain water and minerals that contain water, such as biotite. The continental crust must be heated above the normal geothermal gradient in order to melt. What is rhyolitic magma made of? Rhyolite is extrusive equivalent of granite magma. It
on April 16, 2022
What is the oceanic floor made of?
GeologyThe ocean floor itself is made of mafic rocks, the crystallized matter from silicate magma. … Minerals found under the seabed include gabbro, basalt, serpentine, peridotite, olivine and ore minerals from VMS. What type of rock is the ocean floor made of? basalt Ocean rocks and sediments The basement of the ocean basins is mostly
on April 16, 2022
Is Crater Lake a volcano?
GeologyCrater Lake was formed by the fall of a volcano. Mount Mazama, a 12,000-foot-tall volcano, erupted and collapsed approximately 7,700 years ago, forming Crater Lake. Mount Mazama was an important symbol to the native Makalak people who lived in the surrounding areas. Is Crater Lake an active volcano? Although considered a dormant volcano, Crater Lake
on April 16, 2022
How big of an earthquake can the San Andreas Fault produce?
Geologyabout magnitude 8.3Earthquake Science Computer models show that the San Andreas fault is capable of producing earthquakes up to about magnitude 8.3. The fictional magnitude 9.6 that devastates San Francisco would be 90 times more intense overall than the largest earthquake possible (“only” a magnitude 8.3) on the San Andreas fault! How big is the
on April 16, 2022
Is Hawaii prone to natural disasters?
GeologyHawaii is truly a paradise. However, the islands are vulnerable to certain kinds of natural disasters, such as flooding, hurricanes, tsunamis, lava flows and earthquakes. In March 2006, more than 30 days of torrential rain resulted in major damage from flooding, as well as serious public health issues. Which Hawaiian island is the safest from
on April 16, 2022
Is the Colorado Plateau still rising?
GeologyKnown as the Laramide orogeny, this event caused widespread uplift, faulting, and folding throughout what is now the interior west of North America, and formed the modern Rocky Mountains. Though the Colorado Plateau is contained within the region deformed by the Laramide, it remained largely intact. When did the Colorado Plateau uplift? Uplift of the
on April 16, 2022
What is the outer core pressure?
Geology1.3 to 3.3 million atmospheres135–330 GPa (from 1.3 to 3.3 million atmospheres). While the field resembles that of a bar magnet, the core is too hot to be magnetized in this way. What is the pressure of the outer core in psi? As we delve into Earth’s depths, temperatures and pressures rise quickly. At a
on April 16, 2022
How is chrysanthemum stone formed?
GeologyChrysanthemum Stone was formed from geological changes in the Permian age of the Paleozoic era, 248 to 290 million years ago, from high temperatures and the compression of thick layers of organic-rich mud at the bottom of the sea. Is chrysanthemum stone a fossil? Chrysanthemum stones might look painted or like fossils but they are