'Shear zones' presentation slideshows

Rock Deformation

Rock Deformation. Geological Structures. Joints Faults Shear Zones Folds Igneous Bodies Unconformities. Geological Structures. Why do rocks deform?. STRESS. (force per unit area). compressive stress. tensional stress. shear stress. Geological Structures.

754 views • 71 slides

Magma fracture and lava dome collapse

Magma fracture and lava dome collapse. Hugh Tuffen. Dome collapse at Colima, Mexico in 1991. Outline. Lava dome eruptions - overview When does dome lava break? Shear fracture in conduits and domes Fracture, seismicity and degassing Mechanisms and consequences of collapse:

860 views • 47 slides

Ductile Shear Zones!

2.4k views • 39 slides

Chapter 14, 15, &16

Chapter 14, 15, &16. Fold Geometry, Classification, and Mechanics. Fold Definition. Folds are wave-like structures that result from deformation of bedding, foliation, or other originally planar surfaces in rocks. Fold can be very broad to tightly compressed.

561 views • 24 slides

Strain Localization and Ductile Failure in Feldspar Rocks Georg Dresen and Erik Rybacki

384 views • 20 slides

Metamorphism Intro

Metamorphism Intro. Metamorphic petrology. All about mineral stability and reactions Metamorphism: solid change of form Change mineralogy, texture, composition Occurs between diagenesis and melting. Metamorphic petrology. Metamorphic agents: T, P, and/or fluid Pressure as deviatoric stress

289 views • 12 slides