'Spreading ridge' diaporamas de présentation

Regional Tectonics

Regional Tectonics. Geos 425/525 Fall 2007. Tectonic rates; Oceanic lithosphere I. LECTURE 5, September 2, 2009. 47 slides, 70 mins. Plate tectonic rates. We already know that plate tectonic rates are in the 1-20 cm/year range, or 10- 200 km/yr.

589 views • 47 slides

Figure 1-8a Tectonic Plates

Evidence for Continental Drift: Puzzle. Figure 1-8a Tectonic Plates. According to Wegner, the continents are sections of a past super continent called Pangea, which broke apart and drifted to their present locations. Evidence for Continental Drift: Fossils.

376 views • 24 slides

Regional Tectonics

Regional Tectonics. Geos 425/ 525. Oceanic lithosphere I. LECTURE 7. 24 slides , 70 mins. The oceanic lithosphere. 1. The architecture of the oceanic crust 2. Fast vs slow spreading ridges 3. Ultra slow spreading ridges 4. Continental breakup.

326 views • 24 slides

Figure 1-8a Tectonic Plates

Evidence for Continental Drift: Puzzle. Figure 1-8a Tectonic Plates. According to Wegner, the continents are sections of a past super continent called Pangea, which broke apart and drifted to their present locations. Evidence for Continental Drift: Fossils.

363 views • 24 slides

Igneous Rocks

489 views • 14 slides