Glosario de términos mineros

|Glossary of Mining Related Terms |
|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 |
|A |
|Acidic precipitation (acid rain) - Snowand rain that have a low pH, caused by sulphur dioxide and nitric oxide |
|gases from industrial activity released into the atmosphere. |
|Acidic rocks - Igneous rock carrying a high (greater than 65%) proportion of silica. |
|Acid mine drainage - Acidic run-off water from mine waste dumps and mill tailingsponds containing sulphide |
|minerals. Also refers to ground water pumped to surface from mines. |
|Adit - An opening driven horizontally into the side of a mountain or hill for providing access to a mineral |
|deposit. |
|Aerialmagnetometer - An instrument used to measure magnetic field strength from an airplane. |
|Aeromagnetic survey - A geophysical survey using a magnetometer aboard, or towed behind, an aircraft. |
|Agglomerate - A breccia composed largely or entirely of fragments of volcanic rocks. |
|Agglomeration - A method of concentrating valuableminerals based on their adhesion properties. |
|Agitation - In metallurgy, the act or state of being stirred or shaken mechanically, sometimes accomplished by the |
|introduction of compressed air. |
|Airborne survey - A survey made from an aircraft to obtain photographs, or measure magneticproperties, |
|radioactivity, etc. |
|Alloy - A compound of two or more metals. |
|Alluvium - Relatively recent deposits of sedimentary material laid down in river beds, flood plains, lakes, or at |
|the base ofmountain slopes. (adj. alluvial) |
|Alpha meter - An instrument used to measure positively charged particles emitted by radioactive materials. |
|Alpha ray - A positively charged particle emitted by certain radioactive materials. |
|Alteration - Any physical or chemical change in a rock ormineral subsequent to its formation. Milder and more |
|localized than metamorphism. |
|Amorphous - A term applied to rocks or minerals that possess no definite crystal structure or form, such as |
|amorphous carbon.|
|Amortization - The gradual and systematic writing off of a balance in an account over an appropriate period. |
|Amphibolite - A gneiss or schist largely made up of amphibole and plagioclase minerals. |
|ANFO - Acronym for ammonium nitrate and fuel oil, a mixture used as a blasting agent in many mines. |
|Annual report - The formalfinancial statements and report on operations issued by a corporation to its |
|shareholders after its fiscal year-end. |
|Anode - A rectangular plate of metal cast in a shape suitable for refining by the electrolytic process. |
|Anomaly - Any departure from the norm which may indicate the presence...