What do we mean by “tectonics?”: What do we mean by “tectonics?” Movement of a planet’s surface Movement = ??? What Drives Tectonics?: What Drives Tectonics? What Drives Tectonics?: What Drives Tectonics? Types of Movement: Types of Movement Types of Movement: Types of Movement Types of Movement: Types of Movement Slide9: Mercury Geologically inactive (3.7 Ga) Features resulting from compressive forces Slide10: Venus Possibly geologically active Volcanoes = heat loss Lava flows (craters young) Thick crust; convecting mantle Wrinkle ridges, extensional zones Slide11: Alpha Regio Tesserae - highly deformed older terrain (< 1 Ga) More cratered Embayed by lava flows Slide12: Maat Mons – 8 km high, Aphrodite Terra Region Slide13: Mars Probably geologically active Volcanoes = heat loss Thick crust; convecting mantle Wrinkle ridges, extensional zones - BIG Slide14: Olympus Mons 24 km high 550-600 km across Thick crust! Mars: Mars dfldjfkdkfj Volcanoes on Mars: Volcanoes on Mars http://volcano.und.nodak.edu/vwdocs/planet_volcano/mars/Overview.html Martian Volcanoes: Martian Volcanoes Less gravitational pull; volcanoes larger before collapsing under own weight Hot spots and crust are stationary Slide18: It’s still all about heat loss! Slide19: Heat from Impacts, differentiation, radioactive decay Differentiation of layers Continued differentiation - volcanism, tectonism All are differentiated All have been cooling – unique signature Moon and Mercury – solid core; geologically inactive; conduction Mars and Venus – solid core; geologically active; convection in mantle Earth ….
View Notes - 031011 Terrestrial Planetary Tectonics from GEOL 380 at Tennessee. 1 03/10/11 Mantle Convection, Terrestrial Planet Tectonics Mantle
Read more
CHAPTER 6—THE TERRESTRIAL PLANETS MULTIPLE CHOICE 1. Which of the following is NOT one of the four stages in the development of a terrestrial planet?
Read more
Official Full-Text Publication: Some remarks on the models for plate tectonics on terrestrial planets: From a point of view of mantle rheology on ...
Read more
Tectonic Activity: The amount of tectonic activity on a planet is controlled by the amount of heat stored in the planets interior after formation.
Read more
An exoplanet or extrasolar planet is a planet that orbits a star other ... Plate tectonics ... When looking at the nearest terrestrial exoplanet ...
Read more
... Slowest rotating planet (2) Impact with large object. Surface of Venus ... Plate tectonics. 2. Explored by monitoring shock waves from earthquakes. a.
Read more
Astronomy 100 -- Terrestrial Planets. ... though no plate tectonics. ... Evaporated (gone from the planet) 2) Permafrost ...
Read more
Extraterrestrial liquid water (from ... The signatures of surface water on terrestrial planets may be undetectable ... Kepler-22b is a planet 2.4 times ...
Read more
Terrestrial Planets . Note: Remember you are responsible for graphs, charts and other items that form part of the overall summary of this topic.
Read more
CLIL Earth Sciences ... tectonics. The surface of the ... 1 What is a terrestrial planet? 2 How many terrestrial planets are there in the solar system?
Read more
Add a comment