Workshop - Best of Both Worlds_ Combine KG and Vector search for enhanced R...
Geologic structures
1. GEOLOGIC STRUCTURES
• “Architecture of bedrock”
• Structural Geology– shapes,
– arrangement,
– interrelationships of bedrock
– units & forces that cause them
2.
3.
4. Behavior of rocks to stress
& strain
• Elastic
– Elastic limit
• Plastic
• Brittle
Stress
Strain
5.
6. Structures as a Record of the
Geologic Past
• Geologic maps and field methods
– Observations of outcrops
– Geologic map
– Strike and dip
•
•
•
•
•
Original horizontality
Strike
Angle of dip
Direction of dip
Symbols
– Geologic cross section
7.
8. Structures as a Record of the
Geologic Past
• Geologic maps and field methods
– Observations of outcrops
– Geologic map
– Strike and dip
•
•
•
•
•
Original horizontality
Strike
Angle of dip
Direction of dip
Symbols
– Geologic cross section
9.
10. Structures as a Record of the
Geologic Past
• Geologic maps and field methods
– Observations of outcrops
– Geologic map
– Strike and dip
•
•
•
•
•
Original horizontality
Strike
Angle of dip
Direction of dip
Symbols
– Geologic cross section
11.
12.
13. FOLDS
• Anticline vs. syncline
– Hinge line (axis)
– Limb
– Axial plane
• Plunging fold
• Structural dome
• Structural basin
14.
15. FOLDS
• Anticline vs. syncline
– Hinge line (axis)
– Limb
– Axial plane
• Plunging fold
• Structural dome
• Structural basin
16.
17. FOLDS
• Anticline vs. syncline
– Hinge line (axis)
– Limb
– Axial plane
• Plunging fold
• Structural dome
• Structural basin
25. Fractures in rock
• Joints
– Columnar jointing
– Sheet jointing
– Joint set
• Faults
– Dip-slip faults- normal and reverse
• Footwall vs. hanging wall
– Normal fault
• Graben; Rift
• Horst ; fault-block mountain range
26.
27.
28. Fractures in rock
• Joints
– Columnar jointing
– Sheet jointing
– Joint set
• Faults
– Dip-slip faults- normal and reverse
• Footwall vs. hanging wall
– Normal fault
• Graben; Rift
• Horst ; fault-block mountain range
29.
30.
31. Fractures in rock
• Faults
– Reverse fault
• Thrust fault- low angle reverse fault
– Strike-Slip fault
• Left-lateral vs. right-lateral
32.
33. Fractures in rock
• Faults
– Reverse fault
• Thrust fault- low angle reverse fault
– Strike-Slip fault
• Left-lateral vs. right-lateral
