Structural Geology: Deformation and Mountain Building
... may cause ductile strain) • Faults (Any type of stress may cause brittle strain. The type of fault depends on the type of stress) ...
... may cause ductile strain) • Faults (Any type of stress may cause brittle strain. The type of fault depends on the type of stress) ...
Slide 1
... • The strike is measured in reference to the northerly direction by degrees from 0 o – 90o east or west. ...
... • The strike is measured in reference to the northerly direction by degrees from 0 o – 90o east or west. ...
Deformation: Structural Geology
... Faults! Dip-Slip Faults.! Strike-Slip Faults.! Oblique-Slip Faults.! On a dipping fault, the blocks are classified as the hanging-wall block above the fault, and the footwall block below the fault.! Dip-slip faults are characterized by blocks that move parallel to the dip of the fault. In strike-sli ...
... Faults! Dip-Slip Faults.! Strike-Slip Faults.! Oblique-Slip Faults.! On a dipping fault, the blocks are classified as the hanging-wall block above the fault, and the footwall block below the fault.! Dip-slip faults are characterized by blocks that move parallel to the dip of the fault. In strike-sli ...
Geologic Structure Notes Powerpoint
... Orientation of Geologic Structures • Geologic structures are most obvious in deformed sedimentary rocks • Tilted beds, joints, and faults are planar features whose orientation is described by their strike and dip – Strike is the compass direction of a line formed by the intersection of an inclined ...
... Orientation of Geologic Structures • Geologic structures are most obvious in deformed sedimentary rocks • Tilted beds, joints, and faults are planar features whose orientation is described by their strike and dip – Strike is the compass direction of a line formed by the intersection of an inclined ...
Powerpoint Presentation Physical Geology, 10/e
... Orientation of Geologic Structures • Geologic structures are most obvious in deformed sedimentary rocks • Tilted beds, joints, and faults are planar features whose orientation is described by their strike and dip – Strike is the compass direction of a line formed by the intersection of an inclined ...
... Orientation of Geologic Structures • Geologic structures are most obvious in deformed sedimentary rocks • Tilted beds, joints, and faults are planar features whose orientation is described by their strike and dip – Strike is the compass direction of a line formed by the intersection of an inclined ...
Structural Geology 1
... How Rocks Deform Elastic deformation – The rock returns to original size and shape when stress removed. When the (strength) of a rock is surpassed, it either flows (ductile deformation) or fractures (brittle deformation). ...
... How Rocks Deform Elastic deformation – The rock returns to original size and shape when stress removed. When the (strength) of a rock is surpassed, it either flows (ductile deformation) or fractures (brittle deformation). ...
Section 3 Deforming Earth`s Crust
... volcanic mountains form. Most of the world’s major volcanic mountains are located at convergent boundaries. At convergent boundaries, the motions of the plates causes hot mantle rocks to rise beneath the plate. The molten rock rises to the surface and erupts. Volcanic mountains form both on land and ...
... volcanic mountains form. Most of the world’s major volcanic mountains are located at convergent boundaries. At convergent boundaries, the motions of the plates causes hot mantle rocks to rise beneath the plate. The molten rock rises to the surface and erupts. Volcanic mountains form both on land and ...
03 Structural Control mod 4b
... repeating weaker and stronger types of rock. • Streams cut down deeper into the weaker bedrock • Nearly parallel streams • Branch at higher angles. ...
... repeating weaker and stronger types of rock. • Streams cut down deeper into the weaker bedrock • Nearly parallel streams • Branch at higher angles. ...
Midterm Review
... Geometric approach: Mohr Stress Diagram a plot of ss vs. sn first step: plot s1 and s3 recalling that they are in directions of no shear stress; draw Mohr circle ...
... Geometric approach: Mohr Stress Diagram a plot of ss vs. sn first step: plot s1 and s3 recalling that they are in directions of no shear stress; draw Mohr circle ...
Geology 10 review- Test #3 Read Chapters 10, 11, 12, 15, 16 and 1
... Sample questions and bigger concepts: Describe how the equilibrium line of a glacier would move with series of warm years; Describe how a budget works on a glacier; Describe the difference between the rigid zone and the plastic zone of a glacier; Describe the marks or changes that a glacier makes on ...
... Sample questions and bigger concepts: Describe how the equilibrium line of a glacier would move with series of warm years; Describe how a budget works on a glacier; Describe the difference between the rigid zone and the plastic zone of a glacier; Describe the marks or changes that a glacier makes on ...
Movement of the Earth ’ s Crust
... A special type of reverse fault is a thrust fault. A thrust fault is formed when compression causes the hanging wall to slide over the foot wall. Thrust faults are special because they are almost horizontal, whereas regular reverse faults and normal faults are almost vertical. ...
... A special type of reverse fault is a thrust fault. A thrust fault is formed when compression causes the hanging wall to slide over the foot wall. Thrust faults are special because they are almost horizontal, whereas regular reverse faults and normal faults are almost vertical. ...
1. Describe completely the following folds: a. Anticline – It is caused
... a. Anticline – It is caused by rock layers folding. In an anticline the oldest layers of rock are found at the core of the fold. The youngest layers of rock are found of the outside of the fold. It looks like the letter “A”. b. Syncline – It is caused by rock layers folding. In a syncline the younge ...
... a. Anticline – It is caused by rock layers folding. In an anticline the oldest layers of rock are found at the core of the fold. The youngest layers of rock are found of the outside of the fold. It looks like the letter “A”. b. Syncline – It is caused by rock layers folding. In a syncline the younge ...
Unit 4 Lesson 3 Mountain Building
... a. Anticline – It is caused by rock layers folding. In an anticline the oldest layers of rock are found at the core of the fold. The youngest layers of rock are found of the outside of the fold. It looks like the letter “A”. b. Syncline – It is caused by rock layers folding. In a syncline the younge ...
... a. Anticline – It is caused by rock layers folding. In an anticline the oldest layers of rock are found at the core of the fold. The youngest layers of rock are found of the outside of the fold. It looks like the letter “A”. b. Syncline – It is caused by rock layers folding. In a syncline the younge ...
Powerpoint Presentation Physical Geology, 10/e
... Geologic Structures • Geologic structures are dynamically-produced patterns or arrangements of rock or sediment that result from, and give information about, forces within the Earth – Produced as rocks change shape and orientation in response ...
... Geologic Structures • Geologic structures are dynamically-produced patterns or arrangements of rock or sediment that result from, and give information about, forces within the Earth – Produced as rocks change shape and orientation in response ...
IE 2.1 Earth`s Crust in Motion
... varying elevation. • Depends on location… – Coastal Plains have low elevation at or near sea level along the coast. – Interior Plains are away from the coast, causing varied elevation. ...
... varying elevation. • Depends on location… – Coastal Plains have low elevation at or near sea level along the coast. – Interior Plains are away from the coast, causing varied elevation. ...
Document
... Rock Structure as a Landform Control As denudation takes place, landscape features develop according to patterns of bedrock composition and structure. In this example, weaker sedimentary rocks such as limestone, have been eroded away more rapidly than the resistant igneous rocks. Consequently, the ...
... Rock Structure as a Landform Control As denudation takes place, landscape features develop according to patterns of bedrock composition and structure. In this example, weaker sedimentary rocks such as limestone, have been eroded away more rapidly than the resistant igneous rocks. Consequently, the ...
GEOLOGIC STRUCTURES
... Sometimes layers of rock are not folded in two directions but in all directions. If the rock is pushed upwards as in an anticline, but all sides are lifted, it forms a dome. If the folding pushes downward like a syncline, but including all sides, it forms a depression called a basin. Structural dome ...
... Sometimes layers of rock are not folded in two directions but in all directions. If the rock is pushed upwards as in an anticline, but all sides are lifted, it forms a dome. If the folding pushes downward like a syncline, but including all sides, it forms a depression called a basin. Structural dome ...
13. Deformation and Mountain Building
... 7. Anticlines generally have an associated syncline and the limbs are shared between 8. Anticlines and synclines are defined by the orientation of the rock layers and not the surface of the Earth a) Erosion can cut across folds and their exposure can be dramatic b) Strike an dip relationships help d ...
... 7. Anticlines generally have an associated syncline and the limbs are shared between 8. Anticlines and synclines are defined by the orientation of the rock layers and not the surface of the Earth a) Erosion can cut across folds and their exposure can be dramatic b) Strike an dip relationships help d ...
How mountains are made
... and give information about, forces within the Earth – Produced as rocks change shape and orientation in response to applied stress – Structural geology is the study of the shapes, arrangement, and interrelationships of rock units and the forces that cause them ...
... and give information about, forces within the Earth – Produced as rocks change shape and orientation in response to applied stress – Structural geology is the study of the shapes, arrangement, and interrelationships of rock units and the forces that cause them ...
Plate Tectonics Lecture 7: Structures
... Strike-slip fault: movement is parallel to the strike of the fault Left-lateral and right-lateral Oblique strike-slip (also normal or reversed) Transpression: strike slip and reverse Transtension: strike slip and normal Earthquakes: Earthquakes occur when energy stored in (elasticity) strained rock ...
... Strike-slip fault: movement is parallel to the strike of the fault Left-lateral and right-lateral Oblique strike-slip (also normal or reversed) Transpression: strike slip and reverse Transtension: strike slip and normal Earthquakes: Earthquakes occur when energy stored in (elasticity) strained rock ...
Powerpoint Presentation Physical Geology, 10/e
... • The axial plane divides a fold into its two limbs – The surface trace of an axial plane is called the hinge line (or axis) of the fold ...
... • The axial plane divides a fold into its two limbs – The surface trace of an axial plane is called the hinge line (or axis) of the fold ...
Deformation of Rock
... Flexural folds form when layers slip as stratified rocks are bent. This results in the layers maintaining their thickness as they bend and slide over one another. These are generally formed due to compressional stresses acting from either side. Flow folds form when rocks are very ductile and flow li ...
... Flexural folds form when layers slip as stratified rocks are bent. This results in the layers maintaining their thickness as they bend and slide over one another. These are generally formed due to compressional stresses acting from either side. Flow folds form when rocks are very ductile and flow li ...
Bowser and Sustut Basins - state of knowledge and new initiatives
... integrating distribution of lithofacies assemblages with fossil data gives a general picture of depositional history of the basin on a regional scale ...
... integrating distribution of lithofacies assemblages with fossil data gives a general picture of depositional history of the basin on a regional scale ...
Rock Deformation (Chapter 9) Rocks may deform in variety of ways
... Rocks may deform in variety of ways in responses to stresses, largely imposed by plate tectonic processes. The record of rock deformation, in the form of macroscopic features such as folds and faults, provides valuable information on the tectonic history of an area. Whether rocks respond to these di ...
... Rocks may deform in variety of ways in responses to stresses, largely imposed by plate tectonic processes. The record of rock deformation, in the form of macroscopic features such as folds and faults, provides valuable information on the tectonic history of an area. Whether rocks respond to these di ...