A broken caved in mined out portion of the deposit

Siliceous deposit Of as sedimentary nature whose main constituent is redistributed silica

The sides of a fold

The rock that is broken by blasting outside the intended area

Which of the ff is the bes raw material for the production of rock aggregates for construction material

A slow deformation under small stresses acting over a long period of time

Narrow, vertical or inclined opening excavated in a deposit at the end of a stove to provide a face

Aepli dipping rod shape Mineral deposit is commonly called what

It is the act of enriching samples, either intentionally or accidentally

It is a liquid very vicious hydrocarbon, not extractable from oil well

Water trapped in sedimentary deposits while they are being informed is called

An unconformity where older metamorphic or igneous rocks are overlain by younger stud, demon strata

Basically concerned with the buoyancy of the blocks of the earths crust as they rest on the mantle

The rising of the floor of the mine caused by its being soft to reisist is the weight on the pillar

A square set whose members are not framed at there’s intersections and the timbers used our smaller than those of the square set

Which one of the following represents the greatest expanse of geologic time?

Andesite is what form of a rock

The Explosive cartridge into which the detonator has been inserted

The boundary between the mantle and the outer core

A relatively steep straight slope at any height

Mine opening over haulage level through which, ore from the slope above is drawn to the waiting trucks

A hollow cylinder attached to a special design, and which is used to contain and preserve a continuous section or core of the rocks penetrated in drilling

The smallest type of volcano with steep slope

The spraying of mine roadways with concrete to give a measure of support presents a smooth surface to the air current and prevent weathering

Pyroclastic materials remobilized by water

Which type of bacteria thrives in environments that lack free oxygen

What do you call the assembly of general geologic features that correlate with mineralization

The age of earth is about

The period sometimes called the golden age of trilobites

Near surface generally implies that of less than _____ feet

Coal mining method that best control coal bumps

The supercontinent of Pangaea began to break up during

The term used to describe material separating the adjacent wall, rocks of discontinuities

Areas where rising plumes of hot mantle reach the surface, usually at locations far removed from plate boundaries

Characteristic of stratification and bedding that is alternating light and dark colored lamination, which reflect changes in season

A type of channel system, which consist of a single channel and thalweg

The perpendicular distance between adjacent discontinuities

Which period is known as the age of fishes

It is defined as an explosive susceptibility to initiation

The lowering of grade of ore due to addition of unwanted material

unconsolidated and stratified aggregation of small angular mineral fragments usually buff in color

Difference between total revenue and total cost

The theory For the origin of the solar system is known as

The world’s largest refractory chromite mine in coto zambales is better described as

Undesired event in which the contact the exposure of the movement of a person to objects, equipment, substances, conditions of other persons may or may not cost personal injure damage to property or delay

Them metamorphic rock if you sandstone

It doesn’t opening to the surface where air, different gases and dust are withdrawn from the underground mine

The principal or mineral of tin

A term applied to a fund that handles the entire flow in an airway, and this serves to increase the quantity of air in circulation

The cells of the primitive organisms lack organized nuclear and they reproduce asexually