Presentation on theme: "Science *Stack Test Corrections for collection - Do Now: 12-2 HW: STUDY TODAY’S NOTES – QUIZ THURSDAY WORK ON PLATE TECTONIC PROJECT 1. LIST THE THREE."— Presentation transcript:
Science *Stack Test Corrections for collection - Do Now: 12-2 HW: STUDY TODAY’S NOTES – QUIZ THURSDAY WORK ON PLATE TECTONIC PROJECT 1. LIST THE THREE TYPES OF PLATE BOUNDARIES AND SHOW THEIR MOVEMENT WITH ARROWS. Today ~ Power Point w/notes: Deformation of the Earth’s Crust
Deforming the Earth’s Crust
Types of Stress Deformation: When the shape of a rock changes due to stress 1.Compression = squeezing or pushing together (convergent boundaries) 2.Tension = forces stretch an object (divergent boundaries) 3.Shearing = slicing motion back and forth (transform boundaries)
Types of Folding Folding: rock layers bending because of stress 1.Anticline = upward bend 2.Syncline = downward bend 3.Monocline = bend with horizontal ends
Types of Faulting Fault: the surface along which rocks break and slide past each other Hanging wall: the layers of rock ABOVE the fault line (…above the diagonal) Footwall: the layers of rock BELOW the fault line (…below the diagonal) Fault Line HANGING WALL FOOTWALL
Hanging Wall and Footwall How can I remember which is which???
Types of Faults Normal Faults = the hanging wall slides down the foot wall Reverse Fault = the hanging wall slides up the foot wall Strike slip Fault = the rocks on either side of the fault line slide past each other “It’s Normal to Hang Down.”
Folded Mountains COMPRESSIONCOMPRESSION…mountains formed at continental/continental convergent boundaries. Ex. Appalachian Mountains COMPRESSION Appalachian Mtns.
Fault Block Mountains TENSIONTENSION…causes large blocks of the Earth’s crust to drop down compared to the rocks around it. Ex. Tetons (Wyoming) TENSION
Volcanic Mountains Formed at Ocean/Continental and Ocean/Ocean Convergent boundaries. Ex. Ring of Fire Ring of Fire Mount Saint Helens
You’ve seen this before!... NORMAL FAULT SYNCLINEANTICLINE