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One major difference between basaltic and granitic magma is their specific mineral contents. Basaltic magma contains between 45 and 55 percent silicon dioxide and is high in magnesium, iron and calcium, while granitic magma contains between 65 and 75 percent ...
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 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, ...
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, ...
Introduction Engineering geology is a crucial field that plays a pivotal role in various construction and infrastructure projects. It’s the science that bridges the gap between geology and engineering, providing essential insights to ensure the safety and sustainability of construction ...
What are Rare Earths? The Japanese call them “the seeds of technology.” The US Department of Energy calls them “technology metals.” They make possible the high tech world we live in today – everything from the miniaturization of electronics, to the enabling of ...
The law of superposition is a fundamental principle in geology and archaeology that states that in a sequence of undisturbed sedimentary rocks or archaeological layers, the oldest layers are at the bottom, and the youngest layers are at the top. ...
Metamorphic rocks are classified based on their texture, mineralogy, and composition. The facies classification of metamorphic rocks is based on the conditions of temperature and pressure under which the rock formed. The following are the facies classification of metamorphic rocks: ...
Rock Quality Designation (RQD) is a measure used in geotechnical engineering to assess the quality of rock core samples. It is calculated by measuring the length of intact pieces of rock in a core sample that are longer than 10 ...
In geology and mineralogy, crystal systems are a classification system used to categorize and describe the geometric shapes, or crystal forms, that minerals can take based on the internal arrangement of their atoms or ions. These crystal systems help scientists ...
An unconformity is a surface of erosion or non-deposition that separates two rock units that have different ages. It represents a time gap in the geologic record, and it occurs when sedimentary rocks are tilted, uplifted, and eroded before new ...
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 ...
Coal, a fossil fuel formed over millions of years, holds a pivotal role in powering civilizations and shaping energy landscapes. This article explores the intricate details of coal, from its formation to the various types that fuel industries worldwide. Formation ...
Sand dunes are dynamic landforms created by the wind-driven accumulation of sand. They are typically found in deserts, coastal areas, and even some inland regions. Sand dunes can take on various shapes and sizes, influenced by factors such as wind ...
Granitic magma has high levels of potassium and sodium, while basaltic magma has very low levels of these minerals. When magmas are judged by mineral composition like this, they are technically referred to as felsic, which is granitic, and mafic, which is basaltic. Another major difference between tRead more
Granitic magma has high levels of potassium and sodium, while basaltic magma has very low levels of these minerals. When magmas are judged by mineral composition like this, they are technically referred to as felsic, which is granitic, and mafic, which is basaltic.
Another major difference between these two types of magmas is the temperature that each needs in order to stay liquid. Felsic magmas are normally between 650 and 800 degrees Celsius, whereas mafic magmas are between 1,000 and 1,200 degrees. This is because the mafic minerals melt at much higher temperatures than potassium and sodium, the felsic minerals. Due in part to the lower temperature, felsic magma is much more viscous than mafic magma, meaning it is much thicker and more resistant to flowing.
Although basaltic magma can result in basaltic rocks and granitic magma can result in granitic rocks, they can also form other rocks depending on how quickly the magma cools. Granite is formed by the slow cooling of magma within the surface of the earth, while basalt is formed when magma quickly cools after breaching the earth’s surface through volcanic activity.
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