Donald
J. DePaolo
Instructor
475
McCone Hall
University of California
Berkeley, CA 94720-4767
T • (01)
510/643-5064
F • (01) 510/642-9520
E •
Jim Watkins
Graduate Student Instructor
455 McCone Hall
University of California
Berkeley, CA 94720-4767
E •
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EPS 102: History and Evolution of Planet Earth
Discussion Notes
- 1/17/06 Geochronology.pdf (1.1 Mb)
- 1/24/06 Geochronology.pdf (cont'd) (2.4 Mb)
- 1/31/06 U-Pb Zircon Dating
- 2/07/06 Trace Elements I - Partitioning
- 2/14/06 Earth's Interior - Composition and rheology
- 2/21/06 Exam I Review
- 2/28/06
- 3/07/06 Sr Isotopes in Seawater
- 3/14/06 Earth's Magnetic Field & Seafloor Spreading
- 3/21/06 Phase Diagrams I - Solid solution systems
- 3/28/06 (Spring Break)
- 4/04/06 Phase Diagrams II - Binary eutectic systems
- 4/11/06 Trace Elements II - Fingerprinting magma sources
- 4/18/06 Exam 2 Review
- 4/25/06 Isotope Geochemistry - MORBs and OIBs
- 5/02/06 Stable Isotopes - delta notation and fractionation factors
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Phase Diagrams
Magmatism
There are basically three ways to melt a rock: (1) lower the pressure, (2) increase the temperature, and (3) add volatiles such as water.
Trace Elements
Trace elements can provide information that major elements cannot. Because of their low abundances and relative compatibilities, they are particularly useful for fingerprinting magma sources. Below is a spider diagram showing how trace elements distinguish between the various tectonic settings/processes.
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