Sign up to join our community!
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
You must login to ask a question.
Introduction The Induced Polarization (IP) method is one of the most effective geophysical techniques used in the exploration of sulfide ore deposits. This method is particularly useful for identifying disseminated sulfide minerals, which are commonly associated with copper (Cu), gold (Au), silver (Ag), zinc (Zn), and lead (Pb) deposits. This article provides a detailed overview […] Table of Contents Toggle Introduction1. Understanding the Induced Polarization ...
Introduction Gold exploration is a complex process that requires a combination of geological knowledge, geochemistry, and geophysical techniques. One of the most effective methods for locating gold deposits is the identification of pathfinder elements and minerals. Pathfinder elements and minerals are geochemical indicators that suggest the presence of gold nearby, even if the gold itself […] Table of Contents Toggle IntroductionWhat Are Pathfinders for Gold Deposits?
Introduction Structural control is one of the most significant factors influencing the formation and distribution of hydrothermal gold deposits. Structural geology determines the pathways for mineralizing fluids, the locations of ore deposition, and the overall geometry of gold-bearing zones. Understanding these structural controls is essential for exploration geologists seeking new gold deposits and for mining […] Table of Contents Toggle IntroductionStructural Controls in Hydrothermal Gold Deposits
Introduction to Geology Geology, derived from the Greek words geo (Earth) and logos (study), is the scientific discipline dedicated to understanding the Earth’s composition, structure, processes, and history. It seeks to answer fundamental questions: How did mountains form? Why do volcanoes erupt? What clues do rocks hold about ancient life? From the atomic structure of […] Table of Contents Toggle Introduction to Geology
Engineering geological tests are critical for assessing the physical, mechanical, and chemical properties of rocks and soils to ensure safe and cost-effective design of infrastructure (e.g., dams, tunnels, foundations). These tests help determine material strength, stability, permeability, and susceptibility to hazards like landslides or subsidence. Below are key tests categorized by their application: 1. Field […] Table of Contents Toggle 1. Field Tests (In-Situ)2. Laboratory Tests
Sand Dune Landform: Formation, Types, and Significance Sand dunes are dynamic landforms created by the interaction of wind, sand, and vegetation. These striking natural features are common in deserts, coastal regions, and even in some semi-arid and arid zones. This article explores every aspect of sand dunes, including their formation, types, ecological significance, and role […] Table of Contents Toggle Sand Dune Landform: Formation, Types, and Significance
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 of geotechnical engineering, its types, […] Table of Contents Toggle IntroductionDefinition of Geotechnical Engineering
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 principles, major facies types, and […] Table of Contents Toggle Facies Classification of Metamorphic RocksUnderstanding ...
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 mineralogical diversity found in them. […] Table of Contents Toggle Introduction to Bowen’s Reaction Series
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. Each mineral on the Mohs […] Table of Contents Toggle Mohs hardness scaleWhat Is ...
What is Logging While Drilling (LWD) ?
Logging While Drilling: • Logging while drilling (LWD) is an oilfield service that provides a tool within the drill string that transmits real-time formation information. The LWD tools are located near the end of the drillstring. The measurements recorded provide drilling engineers with critical welRead more
Logging While Drilling:
• Logging while drilling (LWD) is an oilfield service that provides a tool within the drill string that transmits real-time formation information. The LWD tools are located near the end of the drillstring. The measurements recorded provide drilling engineers with critical well information so they may make time sensitive decisions about future well operations.
• LWD is the most effective tool for measuring physical properties, where standard wireline systems previously acquired either no data or poor-quality data. LWD acquires a continuous log of physical properties from directly above the drill bit, where hole conditions are optimal for logging.
• LWD measurement ensures that some measurement of the subsurface is captured in the event that wireline operations are not possible. Timely LWD data can also be
used to guide well placement so that the wellbore remains within the zone of interest which is called as Geosteering.
• LWD tools consists of Gamma Ray Log, Resistivity log, Neutron porosity and density porosity logs which tells us whether the zone is shaly or non shaly, whether the
See lesszone consists of hydrocarbon or water and tells how porous the zone is.
What is quarry in mining?
⚒ Modern quarrying processes and techniques ⚒ ⚒ The development of most modern rock quarries involves stripping the overlying soil and weathered rock to get to the hard rock underneath. ⚒ This is then worked in a 'bench' system, removing the rock in layers that can be returned to year after year asRead more
⚒ Modern quarrying processes and techniques ⚒
⚒ The development of most modern rock quarries involves stripping the overlying soil and weathered rock to get to the hard rock underneath.
⚒ This is then worked in a ‘bench’ system, removing the rock in layers that can be returned to year after year as the quarry is developed.
👉 The quarry becomes deeper with each subsequent bench, with stepped benches reaching up to the original surface.
⚒ With few exceptions, modern quarries rely on drilling and blasting to fragment the rock, which is then loaded onto off-highway trucks or belt conveyors for transport to a processing plant of some sort.
Loading is usually done with wheel loaders or excavators, which combine adequate loading capacity with maneuverability.
👉 This allows them to move from area to area within the quarry, as needed. Where blasting results in the formation of large boulders that are too big for the loading equipment to handle, secondary breaking will be needed, either by drilling and blasting individual boulders or by using excavator-mounted hydraulic hammers to break them.
⚒ The exceptions to drill-and-blast include the production of dimension stone, where the demand is for large pieces of rock rather than fragmented material for further processing.
⚒ The production of dimension stone, which is covered on a separate page, involves carefully splitting large blocks of raw stone away from the quarry face, using wedges or diamond-impregnated wire saws. Another exception is where the rock is soft enough to be ripped, using a large dozer or a ripper tine mounted on a hydraulic excavator, with the dozer then being used to push the broken rock onto a hopper or mobile crusher which feeds a belt conveyor system.
⚒ 👉 Quarry design depends on a number of factors including the pre-existing topography, intended output, infrastructure, and environmental footprint.
See less