Survey by type of main factors

a) to extend the length of the main ore body of the large deposits, glass and siliceous materials,bowl centrifuge wollastonite, talc is generally greater than 500m, decorative stone, graphite ore is generally greater than 1000m, gypsum, chrysotile asbestos mine is generally greater than 2000m;

b) to extend the length of the main ore of medium-sized deposits, glass and siliceous materials, wollastonite, talc is generally 500m ~ 200m, decorative stone, graphite ore is generally 10 ~ 500m, gypsum, chrysotile asbestos mine is generally 2000m ~ 1000m ;

c) to extend the length of the small deposits of the main ore body,rotary kiln dryer glass and siliceous materials, wollastonite, talc is generally less than 200m, decorative stone, graphite mining is generally less than 500m, gypsum, chrysotile mining is generally less than 1000m.

The E.1.2 main ore body shape and internal structure

a) Rules - simple, the main ore body assumes layered, bedded or large lenses, the boundary rule, ore types (species, grade) single or main ore types (species) distribution rules, excluding or less containing discontinuous sandwich with stone rate is generally less than 10%;

b) than the rule - the medium, the main ore body mostly bedded, lenticular, more regular boundary, the main ore types (species, grade) the distribution of regular, continuous stone more stone rate of 10% ~ 30%;

c) irregular - complex, the main ore mostly lenticular or irregular bodies or groups of ore bodies,flotation machine irregular borders, the main ore types (species, grade) the distribution of irregular, discontinuous stone a lot, stone rate generally greater than 30%.

E.1.3 the main ore body thickness stability

a) the stability of the main ore body thickness variation is small or changes in law, the thickness of the coefficient of variation generally less than 40%;

b) more stable, the main ore body thickness changes little or change more regular thickness variation coefficient is generally 40% to 70%;

c), the main ore body thickness variations or changes in the law is not obvious, the thickness of the coefficient of variation is generally greater than 70%.

E.1.4 ore quality stability

a) stable and regular small changes or variations of ore grade or performance of the main ore grade coefficient of variation generally less than 40%;

b) a more stable, little changes in ore grade or performance of the main ore body or change more regular grade coefficient of variation is generally 40% to 70%;

c) change large or variation of the instability, the main ore body ore grade or performance is not obvious, the grade coefficient of variation is generally greater than 70%.

E.1.5 deposit tectonic, magmatic rocks, karst on the ore body and the extent of the damage

a) minor orebody monoclinic or open outputs, anticline, fault, igneous rocks, karst development, the ore body has not been affected and destruction, or subject only to minor impact and damage;

b) medium orebody times a folding or partial folding is more compact, and fracture, magmatic rocks, karst is developed, the ore body by the impact and damage;

c) serious, and close complex orebody folds, fracture, magmatic rocks, karst development, the ore body by a strong impact and damage.

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