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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. ...
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, ...
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 ...
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 ...
BSc Geology, a captivating journey into the depths of our planet, opens a realm of exploration for those intrigued by Earth’s mysteries. This comprehensive program delves into diverse aspects of geosciences, offering a profound understanding of geological processes, mineralogy, and ...
What the meaning of Bauxite ? Bauxite is the most important aluminum ore. This type of rock consists mainly of the minerals gypsite Al(OH)3, bohemite γ-AlO(OH), anddiaspore α-AlO(OH) in a mixture that usually includes iron oxide goethite,hematite,the clay mineral kaolin, ...
There are several sampling techniques used in mineral exploration and mining, depending on the nature and characteristics of the deposit. Some of the most common techniques include: Ultimately, the choice of sampling technique will depend on the specific objectives of ...
🔷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 ...
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 ...
Metamorphic rock is a category of rock that undergoes significant changes in its mineral composition and texture during the process of metamorphism. This transformation occurs due to the high pressure and temperature conditions experienced deep within the Earth’s crust. Metamorphic ...
A landslide is a geological phenomenon that occurs when soil, rocks, and debris suddenly move down a slope due to various factors such as gravity, erosion, seismic activity, or human activity. Landslides can cause significant damage to buildings, infrastructure, and ...
Pyrite is a type of iron sulfide mineral that forms in a variety of geometric shapes due to its unique crystal structure and formation process. The formation of pyrite can be attributed to the following factors: 1. Crystal structure: Pyrite has a cubic crystal structure, which is characterized by aRead more
Pyrite is a type of iron sulfide mineral that forms in a variety of geometric shapes due to its unique crystal structure and formation process. The formation of pyrite can be attributed to the following factors:
1. Crystal structure: Pyrite has a cubic crystal structure, which is characterized by a face-centered cubic (FCC) arrangement of atoms. This structure leads to the formation of six-sided, equilateral pyramids, which are the building blocks of the mineral. These pyramids stack together to create the geometric shapes of pyrite, such as cubes, octahedra, and dodecahedra.
2. Formation process: Pyrite forms through a process called replacement reaction, where it replaces other miner
als in the Earth’s crust. This process often occurs in the presence of water and oxygen, which can promote the formation of pyrite’s distinct geometric shapes.
3. Environmental conditions: Pyrite can form in various environments, including sedimentary, hydrothermal, and oxidized settings. These different environments can influence the size, shape, and arrangement of pyrite crystals, leading to the formation of unique geometric structures.
In summary, the formation of pyrite is geometrical due to its unique crystal structure, the replacement reaction process, and the influence of environmental conditions.
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