Structural Geology

50問 • 1年前

ユーザ名非公開

通報

問題一覧

The direction the hanging wall moves during rupture, measured relative to the fault strike

Rake

Measured anticlockwise from the horizontal

Rake

Slip/ distance moved by the hanging wall along the dip,"vertical distance" along the dip

Dip-Slip

Slip/ distance moved by hanging wall along the direction given by rake or along the dip

Net-Slip

Slip/distance moveed by the hanging wall along the strike"horizontal distance" along the dip

Strike-Slip

Projection of dip-slip on the horizontal surface

Heave

Small step or offset on the ground or surface because one side of a fault has moved vertically with respect to the other

Fault Scarp

Move along the dip

Dip-Slip Fault

Hanging wall goas down with respect to lower block

Normal Fault

Fault line is not straight but is curved

Listric Normal Faults

Hanging Wall once the fault moves

Roll-Over Anticline

Set of parallel faults

Planar Normal Faults

Cause of flowing substrate in the layer which the faults do not intersect

Planar Normal Faults

As one faults dies out, another starts up, making their ends align but there is a space (forms relay ramp) btw the 2 faults

Soft-linked Fault System

Ralay ramp forms because the hanging wall of the first fault is the location of the "continuing" fault

Soft-linked Fault System

Hanging wall goes up with respect to lower block

Reverse Fault

Evidence: if you dig a well-hole in the hanging wall, there will be repeating stratigraphy, and/or if the distance decreases btw 2 points wherein one is located in the footwall and one in the hanging wall

Reverse Fault

Occur in collision mountain belts, and causes forced folding

Reverse Fault

Occur when max stress is perpendicular to strike and fault

Reverse Fault

Reverse fualts with dip < 45'

Thrust fault

Fault that cuts at a an angle with respect to the normal reverse fault to form a curve or v shape, and when compression is applied , the cut up part of the fault pops up

Back Thrusts

Moves to the left ( sinistral) or right (dextral) with respect to the strike

Strike-Slip Fault

Dip-Slip + Strike-Slip Fault

Oblique Fault

structures that form when beds and layers are transformed into curved, bend and crumpled shapes

Folds

Line formed along the highest point fold

Antiform Hinge Line

Line formed along the lowest point of fold

Synform Hinge Line

Upward closing fold ( Opens downwards)

Antiform

Downward closing fold ( Opens Upwards)

Synform

Plane that contains the hinge lines of the folds

Enveloping Surface

Plane that contains the hinge lines of all the layers of the fold

Axial Surface

Measure the interlimb angle

Tightness

Continuous curve, or rounded hinges but straight limbs, or chevron folds

Roundness

Direction of trend of rock ages of the fold layers

Facing

Oldest rock in the center of the fold

Anticline

Youngest in the center of the fold

Syncline

Little folds sitting upon a major fold

Parasitic Folds

Happen when opposite forces applied on the layers are not collinear and they are perpendicular to the layer

Shear Folds

If the forces are not perpendicular to the layer, the part that should undergo thinning buckles instead, and if shearing continues, in thins and becomes distorted

Shear Folds

Folds created as a consequences of moving on a fault and then encountering obstruction as it moves which prevents it from moving, hence causing it to fold instead

Forced Folds

Not fully developed forced folds and terminates at thrust tip

Tip-Line Folds

commonly do not siplay and discrete physical breaks but displacement is achieved without loss of cohesion and continuity

Shear zones

Scratches on faults surfaces resulting from movement of rocks when they pass each other

Grooves

Smooth, planar cracks that interrupt the cohesion of the rock and along which there has been almost imperceptible movement. ___ form in tension

Joints and Shear fractures

Discrete fractures surfaces or zones of fractures along which rocks have been offset by movements parallel to the fracture surfaces

Faults

Structures that form under conditions of elevated temperature and/or pressure, where mineral grains can change shape, selectivity dissolve or precipitate, and recrystallize

Cleavage, Foliation, Lineation

Focuses on interpreting the deformational movements responsible for the development of the structures. Tha basic movements are translation (change in position), rotation (change in orientation), distortion (change in shape), and dilation (change in size)

Kinematic Analysis

Interprets deformational movements in terms of forces and stresses responsible for the formation of structures, as well as evaluating the strength of the materials during deformation

Dynamic Analysis

____ are like connected triangles sans the bases (Roundness)

Chevron

(Orientation) _____: rotate upraight 90'

Recumbent

symmetrical if lengths are almost or equal to one another, else theyre called ____

Asymmetric

Mineral Processing

Mineral Processing

Chemical Composition

Chemical Composition

Mineral Physical Properties

ユーザ名非公開 · 52問 · 1年前

Mineral Physical Properties

Petrology

Petrology

Coal

Coal

Economic Geoglogy

Economic Geoglogy

Surveying

Surveying

Ecology

Ecology

Prospecting And Exploration

ユーザ名非公開 · 83問 · 1年前

Prospecting And Exploration

83問 • 1年前

ユーザ名非公開

Mine safety and Health

ユーザ名非公開 · 48問 · 1年前

Mine safety and Health

Ventilation

Ventilation

Bomasang Magazine

Bomasang Magazine

Rare earth

Rare earth

Mining Methods

Mining Methods

Mining 3

Mining 3

問題一覧

The direction the hanging wall moves during rupture, measured relative to the fault strike

Rake

Measured anticlockwise from the horizontal

Rake

Slip/ distance moved by the hanging wall along the dip,"vertical distance" along the dip

Dip-Slip

Slip/ distance moved by hanging wall along the direction given by rake or along the dip

Net-Slip

Slip/distance moveed by the hanging wall along the strike"horizontal distance" along the dip

Strike-Slip

Projection of dip-slip on the horizontal surface

Heave

Small step or offset on the ground or surface because one side of a fault has moved vertically with respect to the other

Fault Scarp

Move along the dip

Dip-Slip Fault

Hanging wall goas down with respect to lower block

Normal Fault

Fault line is not straight but is curved

Listric Normal Faults

Hanging Wall once the fault moves

Roll-Over Anticline

Set of parallel faults

Planar Normal Faults

Cause of flowing substrate in the layer which the faults do not intersect

Planar Normal Faults

As one faults dies out, another starts up, making their ends align but there is a space (forms relay ramp) btw the 2 faults

Soft-linked Fault System

Ralay ramp forms because the hanging wall of the first fault is the location of the "continuing" fault

Soft-linked Fault System

Hanging wall goes up with respect to lower block

Reverse Fault

Occur in collision mountain belts, and causes forced folding

Reverse Fault

Occur when max stress is perpendicular to strike and fault

Reverse Fault

Reverse fualts with dip < 45'

Thrust fault

Fault that cuts at a an angle with respect to the normal reverse fault to form a curve or v shape, and when compression is applied , the cut up part of the fault pops up

Back Thrusts

Moves to the left ( sinistral) or right (dextral) with respect to the strike

Strike-Slip Fault

Dip-Slip + Strike-Slip Fault

Oblique Fault

structures that form when beds and layers are transformed into curved, bend and crumpled shapes

Folds

Line formed along the highest point fold

Antiform Hinge Line

Line formed along the lowest point of fold

Synform Hinge Line

Upward closing fold ( Opens downwards)

Antiform

Downward closing fold ( Opens Upwards)

Synform

Plane that contains the hinge lines of the folds

Enveloping Surface

Plane that contains the hinge lines of all the layers of the fold

Axial Surface

Measure the interlimb angle

Tightness

Continuous curve, or rounded hinges but straight limbs, or chevron folds

Roundness

Direction of trend of rock ages of the fold layers

Facing

Oldest rock in the center of the fold

Anticline

Youngest in the center of the fold

Syncline

Little folds sitting upon a major fold

Parasitic Folds

Happen when opposite forces applied on the layers are not collinear and they are perpendicular to the layer

Shear Folds

If the forces are not perpendicular to the layer, the part that should undergo thinning buckles instead, and if shearing continues, in thins and becomes distorted

Shear Folds

Folds created as a consequences of moving on a fault and then encountering obstruction as it moves which prevents it from moving, hence causing it to fold instead

Forced Folds

Not fully developed forced folds and terminates at thrust tip

Tip-Line Folds

commonly do not siplay and discrete physical breaks but displacement is achieved without loss of cohesion and continuity

Shear zones

Scratches on faults surfaces resulting from movement of rocks when they pass each other

Grooves

Smooth, planar cracks that interrupt the cohesion of the rock and along which there has been almost imperceptible movement. ___ form in tension

Joints and Shear fractures

Discrete fractures surfaces or zones of fractures along which rocks have been offset by movements parallel to the fracture surfaces

Faults

Structures that form under conditions of elevated temperature and/or pressure, where mineral grains can change shape, selectivity dissolve or precipitate, and recrystallize

Cleavage, Foliation, Lineation

Kinematic Analysis

Interprets deformational movements in terms of forces and stresses responsible for the formation of structures, as well as evaluating the strength of the materials during deformation

Dynamic Analysis

____ are like connected triangles sans the bases (Roundness)

Chevron

(Orientation) _____: rotate upraight 90'

Recumbent

symmetrical if lengths are almost or equal to one another, else theyre called ____

Asymmetric