underground coal mining terminology

Our mining operations – ArcelorMittal

Our iron ore mining operations are located in the United States, Canada, Mexico, Brazil, Liberia, Bosnia, Ukraine, and Kazakhstan. Our metallurgical coal mining operations are located in the United States and Kazakhstan.

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Coal | fossil fuel | Britannica.com

Coal: Coal, solid, usually brown or black, carbon-rich material that most often occurs in stratified sedimentary deposits. It is one of the most important of the primary fossil fuels.

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DEEP: Glossary of Recycling & Solid Waste Terms

Glossary of Recycling & Solid Waste Terms Abstract: Glossary of Recycling & Solid Waste Terms, Abbreviations and Acronyms.

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Early railways: papers from the International Railway Conferences

These are without question the most important sources of information about early railways and early locomotives to emerge since Dendy Marshall, and in many cases change our perspectives of this period without diminishing the significance of George Stephenson.

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Robert Bradley - Retired Surveyor - Mines Rescue

A Tribute to Philip Healey, the Mines Rescue Brigade and coal miners everywhere

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Reich of the Black Sun - 1st Tactical Studies Group - Airborne

4 to no avail. "Prague," the Fuhrer responds stubbornly, almost mystically, "is the key to winning the war."Generaloberts Heinrici's hard-pressed troops must "do without."

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INTRODUCTION TO MINING - Ciência Viva

1 INTRODUCTION TO MINING 1.1 MINING'S CONTRIBUTION TO CIVILIZATION Mining may well have been the second of humankind's earliest endeavors— granted that agriculture was the first.

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Dictionary - Survey, Boundary, Mapping, Mining - Elliott ...

Glossary-Dictionary of terms related to professional surveying, geomatics.. These terms are defined in accordance with their meaning and usage within the surveying profession.

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Cerrillos Mining District - Cerrillos, New Mexico

The Cerrillos Hills are the most mineral enriched area in New Mexico. All the main minerals are present, just not all in one place or enough for large scale mining.

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Adit - Wikipedia

An adit (from Latin aditus, entrance) is an entrance to an underground mine which is horizontal or nearly horizontal, by which the mine can be entered, drained of water, ventilated, and minerals extracted at the lowest convenient level.

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Longwall Mining Overview | Introduction | underground COAL

LONGWALL MINING Overview. In the method of secondary extraction known as longwall mining a relatively long mining face (typically in the range 100 to 300m but may be longer) is created by driving a roadway at right angles between two roadways that form the sides of the longwall block, with one rib of this new roadway forming the longwall face.

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Glossary of Mining Terms - rocksandminerals.com

Back — The roof or upper part in any underground mining cavity. Backfill — Mine waste or rock used to support the roof after coal removal. Barren — Said of rock or vein material containing no minerals of value, and of strata without coal, or containing coal in seams too thin to be workable.

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10S-90: Cost Engineering Terminology - AACE International

Rev. June 20, 2018 (revision history) 0-9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z. 0-9. 50/50 TECHNIQUE – In earn

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Coal gas - Wikipedia

Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system. The gas obtained when coal is heated strongly in the absence of air is called coal gas.

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mining - English-French Dictionary WordReference.com

mining - traduction anglais-français. Forums pour discuter de mining, voir ses formes composées, des exemples et poser vos questions. Gratuit.

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Mine Services - Water | Introduction | underground COAL

Water. Large quantities of water are used in mining operations for cooling machinery, dust suppression, cleaning, fire-fighting and drinking. Water supplies are normally carried in steel pipes from surface to points close to the work places, with flexible hoses used for the final connections.

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Coal Terminology: Resource & Reserve

Reserve vs. Resource. Broadly defined the coal resource is how much coal is actually in the ground. The actual amount is of course unknown, but is estimated based on both direct measurements and inferences from geology.

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