What type of volcano is Montserrat?
GeologyStratovolcanocomplex stratovolcano with many lava domes forming its summit on the Caribbean island of Montserrat.… Soufrière Hills Country Montserrat Geology Mountain type Stratovolcano Volcanic arc/belt Lesser Antilles Volcanic Arc Is Montserrat a shield volcano? Soufriere Hills volcano Stratovolcano, lava dome 915 m / 3002 ft (changing!) Soufrière Hills volcano is a complex stratovolcano that forms
How are Stratovolcanoes made?
GeologyAn eruption of highly viscous (very sticky) magma tends to produce steep-sided volcanoes with slopes that are about 30–35°. That’s because the viscous volcanic material doesn’t flow that far from where it is erupted, so it builds up in layers forming a cone-shaped volcano known as a stratovolcano. How are most stratovolcanoes formed? A stratovolcano
What are the Sierra Nevada mountains made of?
Geologygranitic rocksMesozoic granitic rocks and Paleozoic and Mesozoic metamor phosed sedimentary and volcanic roclra. How were the Sierra mountains formed? Sierra Nevada Molten rock erupted at the surface as lava, but most solidified deep within the earth, forming the gray granitic rocks familiar to any Sierra traveler. Less than five million years ago, the range
Where can spodumene be found?
GeologySpodumene deposits are found in locations all around the world. The most notable deposits are found in Afghanistan, Brazil, Madagascar, Pakistan and the United States (California, North Carolina and South Dakota). Where is spodumene mined in the world? Australia Spodumene is a lithium aluminosilicate mineral, LiAl(SiO3)2, that occurs in granitic pegmatites. Large quantities of spodumene
What are the different types of serpentine?
GeologySerpentine generally occurs in three polymorphs: chrysotile, a fibrous variety used as asbestos; antigorite, a variety occurring in either corrugated plates or fibres; and lizardite, a very fine-grained, platy variety. How do you identify serpentinite? Serpentine rock is apple-green to black and is often mottled with light and dark colored areas. Its surfaces often have
What is the point of a geodesic dome?
GeologyGeodesic domes help saving energy The high volume-to-surface ratio allows domes to occupy 30% less surface area than traditional buildings. If you do the maths, you’ll realize it takes at least 30% less energy to heat or cool them. What is the purpose of a geodesic dome? The geodesic design is a perfect marriage of
What is the Mohorovicic discontinuity made of?
Geology and GeographyAs you probably know, the Mohorovicic Discontinuity is the boundary of the earth’s crust and the mantle. It would be made of elements such as oxygen, iron, sodium, silicon, and aluminum, among others. These elements would be present in rocks that make up both the Earth’s crust and mantle. What is the composition of Mohorovicic
What is divergent in geography?
GeologyA divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface, solidifying to create new oceanic crust. The Mid-Atlantic Ridge is an example of divergent plate boundaries. What is divergent in tectonic plate? Divergent (Spreading):This
What is the most dangerous plate boundary?
Geologyconvergent plate boundariesconvergent plate boundaries, where two continental plates collide earthquakes are deep and also very powerful. In general, the deepest and the most powerful earthquakes occur at plate collision (or subduction) zones at convergent plate boundaries. Which type of plate boundary is most dangerous to live on? If we choose to live near convergent
What was the observation that interested Sir Francis Bacon regarding continental drift?
GeologyWhat was the observation that interested Sir Francis Bacon regarding the continental drift? In 1620, Sir Francis Bacon observed similarities of coasts of Africa and South America. In 1799, Alexander Von Humbolt, German explorer and naturalist, observed the similarities in the geology and features of the west coast of Africa and east coast of South