the week of Sunday, October 1st, 2017

Wednesday, October 4th, 2017, Wednesday Seminar

4:10 PM, 55 Roessler
Tea and cookies at 3:45 in the aviary - (2110 EPS)

“Collisional modification of planetary compositions”

      – by Dr. Phil Carter, Earth and Planetary Sciences Department, UC Davis

Models of planet formation help bridge the observational gap between protoplanetary discs and fully formed planetary systems. Our solar system provides key benchmarks for planet formation theories, particularly via detailed compositional information both from the Sun and from meteorites. As observations of exoplanets improve it becomes increasingly important to understand how accretion shapes the compositions of planets. Collisional erosion during the accretion of terrestrial planets has been suggested as an important mechanism for altering planetary compositions, which might explain observed differences between Earth and chondrites. I will present the results of simulations of terrestrial planet formation which include imperfect accretion and track compositional information, and simulations of planetary embryo collisions which trace planetary crusts. I will show that the accretion process during the intermediate growth phase can naturally lead to changes in the bulk compositions of planetary bodies, and discuss measurable consequences of two contrasting planet formation models.

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Thursday, October 5th, 2017, Fall Welcome

3:00 PM, 1347 Storer Hall

“Marine and Coastal Science Fall Meet & Greet & Eat”

Celebrate the start of the new school year with friends and food! Meet faculty and new students as we welcome everyone back for another year. All current and interested Marine and Coastal Science majors are welcome. Free pizza will be provided!

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Friday, October 6th, 2017, Friday Brown Bag

12:10 PM, 1348 Earth and Physical Sciences

“Active shortening and the geological expression of the transition from subduction to continental collision: western Greater Caucasus, Republic of Georgia”

      – by Chad Trexler

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Friday, October 6th, 2017, Fall Welcome

3:00 PM, 1309 Earth and Physical Sciences

“Geology Fall Meet & Greet & Eat”

Celebrate the start of the new school year with friends and food! Meet faculty and new students. All current and interested Geology majors are welcome. Free pizza will be provided!

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