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GEOLOGY HUB Latest Articles

Geotechnical Engineering

Unlocking the Secrets Beneath the Surface Introduction Geotechnical engineering, a cornerstone of civil engineering, focuses on the properties of earth materials and their interactions with human-made structures. It plays a pivotal role in designing foundations, assessing natural hazards, and ensuring the stability of infrastructure. This article delves into the essence ...

What are the facies classification of metamorphic rocks?

Facies Classification of Metamorphic Rocks Metamorphic facies classification is an essential tool in understanding the pressure-temperature (P-T) conditions under which rocks undergo metamorphism. It helps geologists interpret the geological processes and tectonic settings responsible for metamorphic transformations. In this article, we explore the classification system in detail, focusing on its ...

What is Bowen’s Reaction Series

Introduction to Bowen’s Reaction Series Bowen’s Reaction Series is a fundamental concept in igneous petrology that explains the sequence of mineral crystallization in a cooling magma. This concept, developed by Norman L. Bowen in the early 20th century, has become a cornerstone in understanding how igneous rocks form and the ...

Mohs Hardness scale

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, with 1 being the softest and 10 being the hardest. ...

What is difference between Minerals, Metals and Ores

Understanding Minerals, Metals, and Ores: Types, Formation, and Detailed Overview Minerals, metals, and ores are essential to understanding the Earth’s composition and its resources. These terms are interconnected but have distinct definitions and characteristics. Let’s delve into their types, formation processes, and detailed properties, offering an in-depth perspective for students ...

Galena

Galena, with its distinctive metallic luster and cubic crystal structure, is one of the most significant minerals in the mining industry. As the primary ore of lead and a notable source of silver, it plays a vital role in both economic geology and industrial applications. This article provides a comprehensive ...

Covellite

Introduction to Covellite Covellite (CuS) is a visually striking and scientifically important copper sulfide mineral, best known for its deep blue hue and metallic sheen. Although rare compared to other copper minerals, covellite plays a vital role in copper ore deposits, particularly in the supergene enrichment zone. With a high ...

Chalcocite

Chalcocite: A Comprehensive Overview for Geology Students IntroductionChalcocite, also known as copper(I) sulfide (Cu₂S), is one of the most important copper ores for economic mining and geology studies. It is a highly valuable mineral due to its rich copper content, and understanding its properties, formation, and applications is crucial for ...

Andesite

Andesite: A Comprehensive Study for Geology Students Introduction: Understanding Andesite Andesite is a volcanic rock of great geological importance, especially for students who are exploring the dynamic processes of Earth’s crust and plate tectonics. As an extrusive igneous rock, andesite forms when magma erupts onto the Earth’s surface and cools ...

Bornite

Bornite: A Comprehensive Guide for Geology Students Introduction Bornite, commonly referred to as “peacock ore” due to its vibrant tarnish, is one of the most important copper-bearing minerals in geology. Known for its metallic luster and striking colors, bornite is a copper iron sulfide mineral that is mined as an ...

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, ...

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