Unveiling the Enigmas of the Earth’s Crust: Composition, Structure, Evolution, Significance, and Impact on Geology, Natural Hazards, Resources, and Climate Change. Introduction: The Earth’s crust is the outermost layer of the Earth and is the thinnest of the Earth’s three main layers, which include the mantle and the core. The ...
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What is Sulfur, its Properties, Occurrence, and Uses
Sulfur is a chemical element with the symbol S and atomic number 16. It is a non-metal and belongs to the group of chalcogens. Sulfur is an essential element for life and is commonly found in proteins and other biomolecules. Here is some information about sulfur’s chemical properties, physical properties, ...
What is Ophiolite?
An ophiolite is a section of oceanic crust and upper mantle that has been uplifted and exposed above sea level due to tectonic processes. Ophiolites are important geological features because they provide a window into the Earth’s interior and allow scientists to study the composition and structure of the oceanic ...
Sampling Technique for Mineral Deposit
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 the exploration or mining project, as well as the characteristics ...
What is Earth Science or Geoscience?
Earth science or geoscience 地球科学 is a broad field of study that encompasses various scientific disciplines related to the Earth and its processes. It includes the study of the Earth’s composition, structure, processes, and interactions with its atmosphere, hydrosphere, and biosphere. Earth science can be divided into several major branches, ...
Geology MCQs Online
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, mineralogy, geologic time scale, earth’s structure and composition, and many ...
What is a Fault, its types, and causes of the fault?
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. Tectonic plate movements are the primary cause of faults. Other ...
What is Landslide, what types, and what Causes of Landslides?
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 can also result in loss of life. What are the ...
How to calculate Rock Quality Designation
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 cm. RQD stands for “Rock Quality Designation,” and it is ...
Igneous Rock: A Comprehensive Overview
Igneous rock is a category of rock formed through the cooling and solidification of magma, which is molten rock that originates from the Earth’s mantle. This process, known as igneous differentiation, results in the formation of a wide range of rock types, including igneous intrusives and igneous extrusives. Igneous rocks ...
Latest Geology Articles
GEOLOGY HUB Latest Articles
What is Cinnabar
✳️Cinnabar is a toxic mercury sulfide mineral with a chemical composition of HgS. 🔷It is the only important ore of mercury. It has a bright red color that has caused people to use it as a pigment, and carve it into jewelry and ornaments for thousands of years in many ...
Kimberlite
🔷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 to 1914 and reached a depth of 240 m below ...
Geological Time Scale
Geological Time Scale The geological time scale is a system of chronological measurement that relates geological events and geological time to a numerical scale. It is used to describe the timing and relationships between events that have occurred throughout Earth’s history. The time scale is divided into four main parts: ...
What are Rare Earth Elements and why are they important?
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 green energy and medical technologies, to supporting a myriad of ...
Geology 101
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, minerals, soils, and water. They also study the Earth’s internal ...
Volcano
What is Volcano I heard about the volcano before 🤔??….We all see volcanoes in movies and news, but did you ask yourself why or how do they happen? On our trip today, we will explore the volcano and see its formation, why it happens, and how.. Are you ready, hero ...
What is an Unconformity in Geology
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 sediment is deposited on top of them. There are three ...
Mineral
Minerals are homogeneous, naturally occurring, inorganic solids that have a definite crystalline structure and chemical composition. In 1995, the World Minerals Organization put another definition saying that “a mineral is an element or a chemical compound that is naturally crystalline and formed as a result of geological processes.”Minerals have their ...
Geology Online Quizzes Questions and Answers
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 online quiz.
Metamorphism
The mineralogical, chemical, and structural adjustment of solid rocks to physical and chemical conditions which have generally been imposed at depth below the surface zones of weathering and cementation, and which differ from the conditions under which the rocks in question originated. Metamorphism means to “change form,”. In other words, ...