Weathering is the breakdown and alteration of rocks at Earth’s surface through physical and chemical reactions with the atmosphere and the hydrosphere. Weathered rock or minerals will break down into smaller units and eventually disintegrate into even smaller particles. This takes place in two major ways: physical (or mechanical) and chemical weathering; to a lesser … Read more
Gold is a precious metal. Gold was used by almost all the major civilizations in the world. For most culture, both past and present, it has been of a great economic importance. Gold has historically been the only universally accepted medium of exchange. What makes gold so valuable? The most important is its rarity, although … Read more
Igneous Rocks are formed by cooling or solidification of molten or partly molten material, i.e. from a magma or lava. Igneous rocks are first formed rocks which had made up the primodial earth’s crust. For this reason, they are called primary rocks. Origin of Igneous Rocks The igneous rocks are formed at high temperature directly … Read more
Ore is aggregate of minerals and that can be can be economically extracted from the rock. Examples : Galena (Lead Ore) Ore Deposit An ore deposit is an accumulation of a particular ore or more than one ore. Most ore deposits are named according to their location (for example, Tummalapalle Uranium Deposit, India), or after a … Read more
Aligarh is one of historical city in western Uttar Pradesh, India. It forms a part of the Central Ganga Basin and is underlain by the alluvium comprising clay, silt, sand and gravels of Quaternary age.The Indo-Gangetic Plain is the extensive alluvial plain of the Ganga, Indus and Brahmputra rivers and their tributaries and separates the … Read more
The development of geostatistics as an ore reserve estimation methodology emerged in France in early 1960 from the work of Matheron (1962) and was based on original studies by D.G. Krige functioning the optimal assigning of weights to the neighbouring sample values used in estimating the grade of blocks in South African gold mines. Geostatistics … Read more
INTRODUCTION In areas where soil cover is thin, the location and testing of bedrock mineralisation is made relatively straightforward by the examination and sampling of outcrops. However in locations of thick soil cover such testing may involve a deep sampling program by pitting, trenching, or drilling. Pits and trenches can be a quick and cheap … Read more
Google Earth Pro, the premium version of Google’s popular Google Earth service, is now free. Unlike standard Google Earth, Google Earth Pro comes with a suite of professional-grade features, like a map-making tool. Measuring tools allow users to quickly calculate distances, both linear and radial, as well as the square footage of custom-outlined areas. For … Read more
1. INTRODUCTION Waste can be defined as any material that will be or has been discarded as being of no further use. While the wastes generated in conventional industries have some associated chemical, physical, biological hazards, the case of radioactive wastes presents a long term challenge on account of the hazards due to radioactive emissions … Read more
Lithologging of drill core of boreholes is an important stage in mineral exploration and it is done in reconnoitery, exploratory and evaluation stages of drilling to characterise the lithology. What is lithologging? Lithologging is systematic, depth wise enumeration of details of Core/Sludge samples or rock exposure in cross sections. Objective of lithologging: The basic objective … Read more