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
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
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
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
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
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
What is andesitic magma?
GeologyAndesite magma commonly erupts from stratovolcanoes as thick lava flows, some reaching several km in length. Andesite magma can also generate strong explosive eruptions to form pyroclastic flows and surges and enormous eruption columns. Andesites erupt at temperatures between 900 and 1100 ° C. What are the characteristics of andesitic magma? It ranges in temperature
Can you feel earthquake while driving?
GeologyYou can feel an earthquake while driving. According to people who have experienced an earthquake behind the wheel, it feels like a jolt followed by shaking, and it makes driving in a straight line nearly impossible. Can you feel an earthquake when you’re driving? How do you tell if an earthquake is happening while you
What is mountain and its types?
GeologyThere are five main types of mountains: volcanic, fold, plateau, fault-block and dome. A more detailed classification useful on a local scale predates plate tectonics and adds to these categories. What defines a mountain? Most geologists classify a mountain as a landform that rises at least 1,000 feet (300 meters) or more above its surrounding
What type of rock is Granulite?
GeologyTo the German petrologists granulite means a more or less banded fine-grained metamorphic rock, consisting mainly of quartz and feldspar in very small irregular crystals and usually also containing a fair number of minute, rounded, pale-red garnets. Is granulite metamorphic? granulite facies, one of the major divisions of the mineral facies classification of metamorphic rocks,