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Geology MCQs (Multiple Choice Questions) online are a great resource for students and professionals to test their knowledge and understanding of various geological concepts. These MCQs cover a wide range of topics in geology such as plate tectonics, rock formation, ...
What is VMS? Assemblages of mostly sulfide minerals that develop on the seafloor at locations of concentrated hydrothermal discharge, relates to a kind of ore deposit that’s mined from existing oceanic crust formed underwater are Volcanogenic Massive Sulfides (VMS) Deposit. ...
Explore a comprehensive collection of Mining Geology Multiple Choice Questions (MCQs) for a thorough understanding of geological concepts in the mining industry. Test your knowledge and enhance your expertise with this curated set of questions, designed to cover key topics ...
Looking for an engaging and educational geology quizzes? Test your knowledge and expand your understanding of the Earth’s composition, rocks, minerals, and geological processes with our interactive geology quiz. Challenge yourself and see how much you know about geology. Start ...
Geology is the study of the composition of the Earth’s surface and under it and the events that have shaped it. It also includes methods for determining the absolute and relative ages of rocks discovered in a certain place and ...
Geology is the scientific study of the Earth, including its composition, structure, processes, and history. This fascinating field encompasses a wide range of disciplines, including mineralogy, paleontology, seismology, and more. Geology trivia questions are a great way to test your ...
Geology online Quizzes questions and answers. Free online quiz with multiple-choice questions (MCQ) without registration. Geology Multiple Choice Questions geology questions and answers | geology questions for competitive exams | geology exam questions. Geology quiz questions and answers.geology quizes. Geology ...
Geology 101 is the study of the Earth and its materials, structures, processes, and history. It is a broad field that encompasses many different disciplines, including mineralogy, petrology, paleontology, and geophysics. Geologists study the Earth’s physical features, including its rocks, ...
Marine and petroleum geology is a field of study that focuses on the exploration and understanding of Earth’s subsurface, particularly in relation to the formation, accumulation, and extraction of petroleum resources in marine environments. This interdisciplinary field combines aspects of ...
In engineering and geology, a fault is a fracture or discontinuity in the Earth’s crust where movement or displacement has occurred. Types of faults Causes of Fault The causes of faults are diverse and depend on the type of fault. ...
Mohs hardness scale The Mohs hardness scale is a qualitative scale used to measure the scratch resistance of various minerals or materials. It was developed by Friedrich Mohs, a German mineralogist, in 1812. The scale ranges from 1 to 10, ...
🔷Kimberlites, named after the town of Kimberly, South Africa, where they were first described, are volcanic rocks that originate in Earth’s mantle.🔷They are mined exclusively for diamonds. The photo shows the “Big Hole” at Kimberly.🔷The Hole was mined from 1871 ...
Carbonate Replacement Deposits (CRDs): Unraveling Earth’s Subterranean Wealth Carbonate Replacement Deposits (CRDs) represent a fascinating chapter in the geological story, revealing the hidden treasures of valuable metals beneath the Earth’s surface. These deposits, shaped by complex geological processes, are crucial ...
A Comparison of Two Related Fields Geology and geography are two interconnected fields of study that focus on the Earth and its various features. While geology is concerned with the composition, structure, and processes of the Earth, geography is more ...
Geology is the scientific study of the all constituents of planets, their internal and external forms and processes. More precisely, it is the study of nature, structure and history of the planet. Earth is the home to all life, well ...
Vein deposits are geological formations characterized by the concentration of minerals within distinct fractures or cracks, creating vein-like structures. These deposits play a significant role in the global mining industry, contributing to the extraction of various valuable metals. Understanding the ...
Bowen’s series reaction is a model that describes the crystallization of minerals from a magma. It was developed by the American petrologist Norman L. Bowen in the early 1900s. According to the Bowen’s series reaction, minerals crystallize from a cooling ...
How are basalt and granite formed?
Basalt forms when magma cools and solidifies on the surface of the earth. It mainly occurs on the floor of the ocean as magma solidifies quickly coming in contact with cool ocean water. On the other hand, granite occurs above the ocean and makes up much of continental crust. most of the ocean floorRead more
Basalt forms when magma cools and solidifies on the surface of the earth. It mainly occurs on the floor of the ocean as magma solidifies quickly coming in contact with cool ocean water. On the other hand, granite occurs above the ocean and makes up much of continental crust.
most of the ocean floor is basalt, and most of the continents are granite. Basaltic crust is dark and thin and heavy, while granite is light and accumulates into continent-sized rafts which bob about like corks in this “sea of basalt.” When a continent runs into a piece of seafloor, it’s much like a Mac truck running into a Volkswagon. Not very pretty, but at least there’s a clear winner. And the seafloor basalt ends up in pretty much the same position as does the VW – under the truck (or continent, as the case may be). This may seem like a drag for the basalt, but remember that it isn’t all that happy on the surface anyway, and this gives it the heat it needs to re-melt and try to complete the differentiation process which was so rudely interrupted at the spreading ridge. If successful and allowed to continue, what’s left behind is a “purified” magma with most of the iron, magnesium, and other heavy elements removed. When it cools, guess what forms? And the continental land mass just got a wee bit larger.
See lessWhat is difference between granite and basalt
Differences between basalt and granite Although there are some similarities between basalt and granite, there are also significant differences between these two rock types. Basalt is volcanic, or extrusive, forming at the surface, while granite is plutonic, or intrusive, forming beneath the sRead more
Differences between basalt and granite
Although there are some similarities between basalt and granite, there are also significant differences between these two rock types.
Basalt is volcanic, or extrusive, forming at the surface, while granite is plutonic, or intrusive, forming beneath the surface.
Basalt is mafic while granite is felsic
Basalt is common on both Earth and other Solar System bodies such as the Moon and Mars while granite is only common on Earth and rare elsewhere in the Solar System
Basalt can form in a few days to months, whereas granite plutons can take millions of years to cool and harden.
Basalt is more common in oceanic crust while granite is more common in continental crust.
See lessWhat type of volcano makes granite?
Rhyolite. Rhyolite magma cooling underground forms granite. Granite has large interlocking crystals that can be easily seen if you hold the rock at arm's length. Rhyolite is associated supervolcanoes and explosive volcanic eruptions that create calderas.
Rhyolite. Rhyolite magma cooling underground forms granite. Granite has large interlocking crystals that can be easily seen if you hold the rock at arm’s length. Rhyolite is associated supervolcanoes and explosive volcanic eruptions that create calderas.
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