Plate Tectonic Theory...?

Question

According to plate tectonic theory....

The theory of uniformity is well supported.

Pangea formed of end the age of dinosaurs. (Even tho I don't think they exist per se how archaeologists illustrate them.)

Uniformity applies only to crustal plates.

Gondwana included present-day Antartica.

I put it in the biology section because thats a question on my exam and it makes no sense to me either. Apparently I am supposed to become a Geologist..... and just dont know it. :)

Answer 1

I'm afraid I don't really understand whether you're asking a Question or just saying something!

The Tectonic Plates Theory should be in Geology and not this section !

Anyway, here's some information, if you'd like it!

Plate tectonics (from Greek τέκτων, tektōn "builder" or "mason") is a theory of geology that has been developed to explain the observed evidence for large scale motions of the Earth's crust. The theory encompassed and superseded the older theory of continental drift from the first half of the 20th century and the concept of seafloor spreading developed during the 1960s.

The outermost part of the Earth's interior is made up of two layers: above is the lithosphere, comprising the crust and the rigid uppermost part of the mantle. Below the lithosphere lies the asthenosphere. Although solid, the asthenosphere has relatively low viscosity and shear strength and can flow like a liquid on geological time scales. The deeper mantle below the asthenosphere is more rigid again. This is, however, due not to cooler temperatures but to high pressure.

The lithosphere is broken up into what are called tectonic plates—in the case of Earth, there are seven major and many minor plates (see list below). The lithospheric plates ride on the asthenosphere. These plates move in relation to one another at one of three types of plate boundaries: convergent, divergent, and transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along plate boundaries. The lateral movement of the plates is typically at speeds of 0.66 to 8.50 centimeters per year.

All the best!

Cheers!

Simon Templar

Answer 2

Plate tectonic theory states that the surface of the earth consists of a number of plates that are slowly moving relative to one another. Amongst other things, the theory explains why most of the world's large earthquakes occur.

Not biology, geology!

Answer 3

Actually it has been shown that a new super continent like Pangaea and Gondwanaland is gradually being formed. It will take millions of year but it will lock all the current land masses into one continent with the Indian ocean as a huge lake in the middle!! Sad to see you lack even a basic understanding of geography - did you miss school?!!

Answer 4

Yes, and what has that got to do with Biology???