Category: Geology

Why do we need deep time?

Appreciation of deep time helps us to define the limits to human consumption of Earth resources, as well as to provide a framework for debates among those who hold different views on the domains of validity for science and religion and on the meaning of scientific inferences. What is deep time theory? After all, evolutionary

What are volcanic landforms?

Volcanic landforms tend to be cinder cones, stratovolcanoes, volcanic domes, and calderas. Repose periods between eruptions tend to be hundreds to thousands of years, thus giving people living near these volcanoes a false sense of security. What are volcano landforms? Key Concept:Volcanic eruptions create landforms made of lava, ash, and other materials. These landforms include

Who invented the Richter scale and for what purpose is it used?

The Richter scale was originally devised to measure the magnitude of earthquakes of moderate size (that is, magnitude 3 to magnitude 7) by assigning a number that would allow the size of one earthquake to be compared with another. For what purpose Richter scale is used? The Richter scale was originally devised to measure the

What elements are in limonite?

Limonite (/ˈlaɪmənaɪt/) is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying composition. The generic formula is frequently written as FeO(OH) nH2O, although this is not entirely accurate as the ratio of oxide to hydroxide can vary quite widely. What minerals are found in limonite? Description: Limonite is a general term

Did Spokane just have an earthquake?

There were no significant confirmed earthquakes in or near Spokane in the past 24 hours. Did earthquake occur just now? “Earthquake of Magnitude:4.3, Occurred on 23-05-2021, 06:56:42 IST, Lat: 24.79 & Long: 94.94, Depth: 109 Km ,Location: 49km ESE of Ukhrul, Manipur, India,” the NCS tweeted. When was the last time Spokane Washington had an

Do all minerals leave a streak?

Almost every mineral has an inherent streak color, no matter what color the actual mineral is. For example, Calcite occurs in many different colors, shapes, and varieties. But every single variety of Calcite has a white streak. A streak is useful in distinguishing two minerals with the same color but different streak. Does all mineral

What is an earthquake article?

Earthquakes are the result of plate tectonics, or shifting plates in the crust of Earth, and quakes occur when the frictional stress of gliding plate boundaries builds and causes failure at a fault line. In an earthquake, elastic strain energy is released and waves radiate, shaking the ground. What is earthquake Short answer? An earthquake

When did Wallace and Darwin go on their research expedition?

Darwin discovered the origin of species 20 years before Wallace (in 1832) during his voyage on the HMS Beagle. When did Wallace and Darwin go on their research expeditions? What was the predominant view about the origin of species in the mid-1800s? When did Wallace go on his first research expedition? 1854 From 1854 to

Where are black smokers found?

mid-ocean ridgesalong the mid-ocean ridges. The two main locations for the mid-ocean ridges are the East Pacific Rise and the Mid-Atlantic Ridge. The reason that black smokers are typically found in these areas is due to the fact that these areas are where the tectonic plates meet. What is a black smoker and where would

What is Appalachian plateau known for?

Mountain ranges existing in the Appalachian Plateaus include the Catskill, Pocono, Allegheny, and Cumberland Mountains. In addition to these sedimentary rocks, beds of coal are locally significant throughout the Appalachian Plateaus, making this area the heart of the American coal industry. What is Appalachia known for? In fact, Appalachian culture is known for its literature

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