ENT 526 Lecture Notes - Lecture 2: Supercontinent Cycle, Toffee, Atlantic Ocean
4 May 2018
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EESA06H3F Introduction to Planet Earth Lecture Notes
Week 1: Lecture #1: Monday January 05, 2015
- NA plate moves around 4cm/yr to the west
- need geoscientists to find water, explain things, etc.
How our planet works (‘plate tectonics’) from its deep interior to its surface
- plate tectonics happens at the earth surface, & most processes occur at the response to
processes going on deep w/i in the planet, w/i the so called “mantel”, hundreds of miles
down, where rocks are no longer hard, they’re like toffee. And subject to large scale
convection(?) processes, where the hot toffee-like rocks raise and then sink, and that
convection process drives the movement of the plate on the earth surface
- main things about course: plate tectonics & supercontinent cycle
- FIVE PART SERIES: TECTONIC EUROPE, PACIFIC RIM – WEST, PACIFIC RIM –
AMERICAS. ALONG THE GREAT AFRICAN RIFT, ASIA: COLLISION ZONE (supposed to
watch these, can be found on bb)
- figure numbers on slide respond to those in the textbook
Figure 2.2 (pg 23)
- Pangaea = all the land, one sub super continent
- phthalassa = all the water
- gondwana = the southern continents (Africa, SA, Australia & etc)
- NA was part of the laurasia
- soon all the plates will move tgt again and the Atlantic ocean will come tgt (mature …)
- known as Pangaea 2 (in another billions years time)
- 5 super continents today
- continental draft term no longer used anymore, now known as plate tectonics
- make sure to read and go over testing & expanding your knowledge
Four layers:
4) Built ladscape ad historic fill aterials
3) Glacial sediments (< 2 Ma)
2) Phanerozoic cover rocks (600 – 350 Ma) recording formation of Pangea
1) Precambrian basement (< 1 billon years) recording formation of Rodinia
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Week 1: lecture #1: monday january 05, 2015. Na plate moves around 4cm/yr to the west. Need geoscientists to find water, explain things, etc. How our planet works ( plate tectonics") from its deep interior to its surface. And subject to large scale convection(?) processes, where the hot toffee-like rocks raise and then sink, and that convection process drives the movement of the plate on the earth surface. Main things about course: plate tectonics & supercontinent cycle. Five part series: tectonic europe, pacific rim west, pacific rim . Along the great african rift, asia: collision zone (supposed to watch these, can be found on bb) Figure numbers on slide respond to those in the textbook. Pangaea = all the land, one sub super continent. Gondwana = the southern continents (africa, sa, australia & etc) Soon all the plates will move tgt again and the atlantic ocean will come tgt (mature ) Known as pangaea 2 (in another billions years time)
