Geology for Engineers Planet Earth. Organisation 30 Lectures: Monday, Tuesday, Wednesday 10-11am, M17 4 Practicals: Tuesday afternoon, Main Lab Geology.

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Presentation transcript:

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 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!

Course Notes

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

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.

Formation of the Solar System Credit: Shu et al protostar circumstellar disk planetesimals home

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

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 CO 2 & 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.

The Asteroids

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)