Dr. Leah Ziegler

Post-doctoral Research Associate, CEOAS


Ph.D., Earth Sciences, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA USA, 2011.

B.S., Physics with Earth Science specialty (cum laude), University of California, San Diego, La Jolla, CA USA, 2002.

Research Interests:

I am interested in deep Earth processes and Earth history, and using geomagnetism to study these topics. I study the paleo-geomagnetic field and it’s evolution over time. Currently, I am working with the paleomagnetism group at Oregon State University processing marine sediment cores for paleomagnetic information. We hope to learn about the field’s evolution during the Holocene and to characterize regional features of the paleomagnetic field.

Download: PADM2M – 2 million year field strength model


Outreach interests:

As a 2010-2011 NSF GK-12 fellow, I was fortunate to develop and lead classroom activities in 9th grade Earth Science classrooms.  For documentation on the activities I developed for teaching about the Solid Earth and Plate Tectonics, including my plate tectonics review game “Supercontinents!” and an activity teaching about the magnetic stripes on the sea floor, see: http://earthref.org/SCC/lessons/2010/solidearth/


Download: Curriculum Vitae LBZ



Mailing address: 104 CEOAS Admin Bldg Corvallis, OR 97331-5503 Phone: 541.737.3037 Email: lziegler@coas.oregonstate.edu Office: Burt 108

G3 (2013)

Implications of a long-lived basal magma ocean in generating Earth’s ancient magnetic field

Geophys. Journal International (2013)

A stochastic model for palaeomagnetic field variations


Geophys. Journal International (2011)

PADM2M: a penalized maximum likelihood model of the 0–2 Ma palaeomagnetic axial dipole moment



Jackson, C., L. B. Ziegler, H. Zhang, M. Jackson, and D. Stegman (2014), A geochemical evaluation of potential magma ocean dynamics using a parameterized model for perovskite crystallization. Earth Planet. Sci. Lett. 392, 154-165

Ziegler, L. B. and D. R. Stegman (2013), Implications of a long-lived basal magma ocean in generating Earth’s ancient magnetic eld. G cubed. DOI: 10.1002/2013GC005001*Editor’s highlight *EOS research spotlight *Nature Geoscience Highlight

Buff ett,B.,  L. B. Ziegler and C. G. Constable (2013), A Stochastic Model for Paleomagnetic Field Variations. Geophys. J. Int., 195,86-97

Ziegler, L. B. and C. G. Constable (2011), Asymmetry in growth and decay of the geomagnetic dipole. Earth Planet. Sci. Lett. 312, 300-304.

Smith-Boughner, L. T., L. B. Ziegler, and C. G. Constable. (2011), Changing pattern of geomagnetic intensity variations in a 12 My record from the Oligocene with inconvenient gaps. Phys. Earth Planet. Int. 188, 260-269

Ziegler, L. B., C.G. Constable, C. L. Johnson, and L. Tauxe (2011), PADM2M: A Penalized Maximum Likelihood Model of the 0-2 Ma Paleomagnetic Axial Dipole Moment. Geophys. J. Int., 184, 1069-1089. doi: 10.1016/j.pepi.2008.07.027

Ziegler, L. B., C.G. Constable and C. L. Johnson (2008), Testing the robustness and limitations of 0-1 Ma absolute paleointensity data. Phys. Earth Planet. Int., 170, 34-45