The initial evidence of a particular deposit
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Tag: <span>D</span>
An underground opening at the bottom of a stope where broken ore is collected
To recover heavy minerals from depth, with a device that employs a vacuum to first collect material and a further device or series of devices, to classify and concentrate minerals of greatest density
The flow of water as influenced by gravity
A mineral concentration device that uses a catching net, or bucket tied to a long rope, to collect heavy minerals in moving current. Used for recovering placer minerals in creeks and rivers and usually for testing purposes
An intrusion of magmatic rock forming between fractures of earlier rock
A term used to describe minerals capable of bending and reshaping without breaking
The separation of mineral particles using compressed air flow
Non aqueous mineralized gravel deposit, usually an ancient channel, dry riverbeds or hillside
The assumption of an attainable average of mineralization by quantifying the mineralization found through results of well spaced representative drill samples