Category: Geology and Geography

Landslide disaster

Terrible devastation was caused by a landslide in the Schwyz district on 2 September. Late in the afternoon, after heavy rainfall, a rocky peak of the Rossberg broke off. The earth masses underneath started to slide and buried the villages of Goldau and Röthen as well as parts of Lauerz and Buosingen within a few

Alarm in the Alps

It is the mightiest of all Alpine glaciers: the Aletsch Glacier in the Bernese Alps is over 23 kilometres long. Its ice cover is up to 900 metres thick. For now! Because the white splendour of the glaciers could soon be history. For decades, researchers have been observing that the ice masses are shrinking. On

What are some of Florida’s geological features?

Asked by: Neil Fleshman Learn more about each site by visiting the state park website or exploring the publications and articles in which each site is referenced. Devil’s Millhopper Geological State Park. Edward Ball Wakulla Springs State Park. Florida Caverns State Park. Windley Key Fossil Reef Geological State Park. Falling Waters State Park. What is

What is a small cave called?

Asked by: Karen Martin grot, grotto. a small cave (usually with attractive features) What is another name for a small cave? A grotto is a small cave, the kind of place where you feel comfortable, cozy, and protected from the harsh realities outside. This word started in Greek (as the word that also gives us

What is earthquake weather mean?

Asked by: Ted Higgins Why are earthquakes considered weather? This theory lead to a belief in earthquake weather, that because a large amount of air was trapped underground, the weather would be hot and calm before an earthquake. A later theory stated that earthquakes occurred in calm, cloudy conditions, and were usually preceded by strong

How do scientists believe the Earth’s four layers were formed?

Asked by: Christina Walker The Earth is composed of four different layers. Many geologists believe that as the Earth cooled the heavier, denser materials sank to the center and the lighter materials rose to the top. How were the four layers of the Earth formed? The major layers of the Earth, starting from its center,

What is assimilation in geology?

Asked by: Beth Gee Assimilation is the process whereby solid or fluid foreign material is incorporated into magma. The term implies no specific mechanism and the process depends on many factors, including temperature, cooling rate of the magma, gas pressure, and the composition of the material being assimilated. What does assimilation in geology mean? Assimilation

How did Lava help form the Columbia Plateau?

Asked by: Brian Hughes As the molten rock came to the surface, the earths crust gradually sank into the space left by the rising lava. The subsidence of the crust produced a large, slightly depressed lava plain now known as the Columbia Basin (Plateau). How was the Columbia Plateau formed? The plateau formed between 6

Why is weathering important to soil?

Asked by: Louis Beans Weathering breaks down and loosens the surface minerals of rock. Hence, the broken rocks are transported to another place where it decomposes and forms soil. Therefore weathering is important for soil formation.Mar 27, 2018 Why is weathering an important process in the formation of soil? Weathering describes the means by which

What are the characteristics of felsic magma?

Felsic magma or lava is higher in viscosity than mafic magma/lava. Felsic rocks are usually light in color and have specific gravities less than 3. The most common felsic rock is granite. Common felsic minerals include quartz, muscovite, orthoclase, and the sodium-rich plagioclase feldspars (albite-rich). What is felsic magma like? Felsic magma is viscous and

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