Rock weathering – Definition, Type and Products of Weathering

rock weathering

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

Why gold is so costly and precious to mankind?

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

Geology of Aligarh, Uttar Pradesh, India

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

What is PITTING AND TRENCHING ?

PITTING AND TRENCHING

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

How to download Google Earth Pro – Now Free

Google Earth Pro

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

Principles of Radioactive Waste Management and Disposal

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