monday december 10, 2012 (discussion and worksheet – mountain building)
TRANSCRIPT
MondayDecember 10,
2012(Discussion and
Worksheet – Mountain Building)
The Launch PadMonday, 12/10/12
Which of the following energy sources is thought to drive the lateral motions of
Earth's lithospheric plates?A. gravitational attractive forces of the Sun
and Moon
B. electrical and magnetic fields localized in the inner core
C. export of heat from deep in the mantle to the top of the asthenosphere
D. swirling movements of the molten iron particles in the outer core
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Assignment Currently Open
Summative or
Formative?Date Issued Date Due Date Into
GradeSpeed Final Day
Quiz 11 S1 11/9 11/9 11/30 12/14
Quiz 12 S2 11/16 11/16 11/30 12/14
Quiz 13 S3 11/30 11/30 12/4 12/21
WS - Introduction to Continental Drift
and Plate TectonicsF8 12/3 12/7 12/12
Video WS - Plate Tectonics,
Volcanism, and Earthquakes
F9 12/4 12/7 12/12
Project – Plate Tectonics F10,11,12 12/5 12/7 12/11
Recent Events in ScienceHypergiant Star Amazes for 30 Years
Read All About It!www.sciencedaily.com/releases/20
12/12/121209152537.htm
A European research team has published the results of a 30-year study of an extraordinary
hypergiant star. They have found that the surface temperature of
the super-luminous star HR 8752 increased by about 3000 degrees in less than three decades, while
it went through an extremely rare stage called the 'Yellow
Evolutionary Void'. The discovery marks an important step closer to unravelling the evolution of the most massive
stars.
Convergent and Divergent Plate Boundaries
Mantle plumes extend upward from the mantle - core boundary and cause convection within the mantle.
Layering at 660 Kilometers
Models of Mantle – Plate Convection
Mantle plumes extend upward from the mantle - core boundary and cause convection within the mantle.
Whole - Mantle Convection
Models of Mantle – Plate Convection
Directions and Rates of Plate Motions
Directions and rates of plate motion in centimeters per year
Scientists have extrapolated present-day plate motions into the future some 50 million years.
Areas west of the San Andreas Fault will slide northward past the North American plate.
Plate Tectonics Into the Future
Africa collides with Eurasia, closing the
Mediterranean and initiating
mountain building.
Australia and new Guinea are on a collision course
with Asia.
Begin Worksheet
Mountain Building