Which type of mining is likely the least harmful to the

User: Which type of mining is likely the least harmful to the environment?a. surface mining b. placer mining c. subsurface mining d. none of the above Weegy: Subsurface mining is likely the least harmful to the environment. User: Which of the following is not a negative consequence of …

What Are the Different Types of Mining?

25/3/2020 · By Staff Writer Last Updated Mar 25, 2020 3:15:31 AM ET. Johannes Fasolt/Other. The two main types of mining are surface mining and underground mining. Mining is further divided into several other categories including room and pillar mining, slope mining, block caving, quarrying, open-pit mining and in situ mining.

Coal mining - Choosing a mining method | Britannica

Choosing a mining method. The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many technological, economic, and social factors.

Mining Industry - Egiye Bangla - West Bengal

West Bengal is 3rd largest in India in mineral production accounting for about one-fifth of total mineral production.Coal accounts for 99% of extracted minerals of the state, which has 11% of the total national coal reserves. Coal: In 2015, the state's total coal reserves/resources were estimated at 31.43 billion tonnes, major coal fields being at Raniganj, Barjora etc, while coal production ...

Types of Oil and Gas Exploration Methods | Profolus

Jan 21, 2018 · Three main types of oil and gas exploration methods 1. Surface methods. Oil and gas exploration using surface methods are based on either one of the two principles. The first is to survey the geological feature of the surface to determine sedimentary rock formations and repeated folds and faults or salt domes in subsurface rock formation.

Kerala: ‘Quarrying, mining, to be under direct govt control

Jan 20, 2021 · kolkata. chennai. agra. agartala. ahmedabad. ajmer. ... mining, to be under direct govt control’ ... This was a major proposal for improving non-tax revenue and Isaac had mentioned it in the ...

A Brief Introduction to the Types of Surface Mining

A Brief Introduction to the Types of Surface Mining Methods. Surface mining is one of the most common and oldest ways of removing minerals from the Earth. ScienceStruck tells you what the various surface mining methods are, with the definition and facts of each.

what are the major types of subsurface mining

What are The Three Major Types Of Subsurface Mining. 3 major types of subsurface mining SKD Mining 3 major types of subsurface mining Posted at:April 26, 2013[ 49 3461 Ratings] Mining Wikipedia, the free encyclopedia [3] Mines of a similar age in Hungary are believed to be sites where Processing of ore from a lode mine, whether it is a surface or subsurface mine, requires.

What is subsurface mining? | Study.com

There are several different types of mining, including subsurface mining. ... This lesson will use examples and describe the three major groups of non-silicate minerals, including carbonates ...

What are the main methods of mining? | American

PDF version. There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits. Surface mines are typically used for more shallow and less valuable deposits.