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Geology for Engineers

Geology for Engineers. Planet Earth. Organisation. 30 Lectures: Monday, Tuesday, Wednesday 10-11am, M17 4 Practicals: Tuesday afternoon, Main Lab Geology Field Trip: Killiney (date to be confirmed), full afternoon See course website for full details!. Assessment. 3 hour exam

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Geology for Engineers

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  1. Geology for Engineers Planet Earth

  2. Organisation • 30 Lectures: Monday, Tuesday, Wednesday 10-11am, M17 • 4 Practicals: Tuesday afternoon, Main Lab Geology • Field Trip: Killiney (date to be confirmed), full afternoon • See course website for full details!

  3. Assessment • 3 hour exam • All the material taught in the course, including practicals and field-trip, is examinable!!! • Answer 5 out of 7 questions • 6 set by PB + QC, 1 by BM • See past exam papers for examples!

  4. CourseNotes

  5. Recommended Texts • Course web-site • Understanding Earth (2nd edition), Press & Siever • The Solid Earth (2nd Edition), Fowler • Introducing Groundwater (2nd Edition), Price • Water wells and boreholes, Misstear, Bank & Clark

  6. Formation of the Solar System • The stages of solar system formation start with a protostar embedded in a gas cloud, then to an early star with a circumstellar disk, to a star surrounded by small "planetesimals" that are starting to clump together to a solar system like ours today.

  7. Formation of the Solar System circumstellar disk protostar home planetesimals www.jwst.nasa.gov/birth.html Credit: Shu et al. 1987

  8. Composition of the Solar System • Jovian planets: Jupiter, Saturn, Uranus, Neptune • Large masses & low densities. • Mainly composed of gaseous H & He and frozen C-H-N volatiles. • Interiors may be similar to that of Earth

  9. Composition of the Solar System • The inner, terrestrial planets: Small masses & high densities. • Mercury: No atmosphere. Similar in composition to Earth. • Venus: Dense atmosphere of CO2 & N. Similar in composition to Earth. • Earth: More about “us” later. • Mars: Polar ice caps in winter – water? Uniform chemical composition – i.e. no iron core and silicate mantle as in Earth.

  10. The Asteroids www.aerospaceweb.org/

  11. Composition of the Solar System • The asteroids: Located in a belt between the terrestrial and Jovian planets. • Meteorites: Most are probably fragments from the asteroid belt of our solar system. • Siderites, or “irons” (98% metal) • Siderolites, or “stony irons” (50% metal, 50% silicate) • Aerolite, or “stones” (silicate > metal)

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