# EPS Colloquium #### calendar\_today Date and Time **November 1, 2021** 12:00PM - 12:00PM EDT #### pin\_drop Location **Zoom & Haller Hall** **Roger Fu**, Assistant Professor, Harvard EPS, will present "The Magnetism of Complex Earth and Planetary Rocks." **Roger Fu**, Assistant Professor, Harvard EPS, will present "The Magnetism of Complex Earth and Planetary Rocks." Magnetic fields are thought to govern the dynamics of protoplanetary disks by mediating inward gas accretion and, possibly, setting up turbulent concentrations of dust to form the first planetesimals. A subset of these planetesimals then accrete to form rocky planets, which may host magnetic core dynamos and, in the case of Earth, a crust consisting of mobile tectonic plates that gave rise to a biosphere. I will present how recent advances in paleomagnetic instrumentation have enabled access to complex meteorites and early Earth rocks that record magnetic fields in the protoplanetary disk and document the geophysical development of Earth and Mars. These techniques hold promise for challenging problems in broad areas of sample-based geomagnetism. The event will take place on [Zoom](https://harvard.zoom.us/j/98884783575?pwd=ais5ek9MaGRQYy9ScEh3Zm5YdTRwQT09) and at Geological Museum 102 (Haller Hall). Food will be provided. Contact: See also:- [ Climate Change ](/research-areas/climate) - [ Faculty of Arts and Sciences ](/school/faculty-arts-and-sciences) Share on:- [ Facebook ](#) - [ Twitter ](#) - [ Linkedin ](#) Save: [ Add to calendar calendar\_today ](https://www.environment.harvard.edu/node/1420052/event-feed.ics) Copy link link