Paleomagnetism -

What do you know about Earth's magnetic field?

What does magnetism have to do with rocks on the ocean floor? Well, actually, a lot! The rocks on the ocean floor are recorders of the properties of Earth's ancient magnetic field. You simply have to know how to read that record. And that's what we do in the Paleomagnetism laboratory.

About Paleomagnetism
View in Flash or Download/Print PDF (516 KB) - Read the basics about Paleomagnetism - the study of Earth's past magentic field.

Paleomagnetism Lab Brief
View or Download/Print PDF (3.5 MB) - The "Paleomag Lab" on the JOIDES Resolution contains some of the most unique instrumentation in the world, including the Super Conducting Cryogenic Magnetometer. Learn all about the work that scientists do in this lab.

Who Works Here? - Career Brief - Paleomagnetism Specialist - The Paleomag Lab is staffed by the Paleomagnetism Specialist, a technician devoted to conducting Paleomagnetism analyses. Find out more about this job and what it takes to become a Paleomagnetism Specialist.

Exercises on this Topic Developed for the School of Rock Expedition

1. How Old is it? Part 2 - Magnetostratigraphy (Paleomagnetism) and the Geomagnetic Polarity Timescale*
View in Flash or Download/Print PDF (2.2MB)
By Mark Leckie and Kristen St. John,
School of Rock Professors

Learn how paleomagnetism is used to accurately date cores of rock onboard the JOIDES Resolution.

*This activity is designed for advanced high school students and first and second year undergraduates.

Data Used from DSDP/ODP/IODP for this Exercise*

Leg/Expedition: ODP Leg 198, 199, 202

Site/Hole: 1208, 1218, 1237

*Links in this section point directly to the online DSDP/ODP/IODP JANUS Database. Access this database for more detailed and technical descriptions of Legs and Sites, as well as shipboard collected data.

ODP/IODP Cruise Related Publications

Leg/Expedition: ODP Leg 198, 199, 202

Activities on this Topic Developed by Shipboard Educators

1. A Rocky Timescale
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This activity helps students understand how a paleomagnetic record is recorded in rock and obtained by scientists by measuring and recording declination in model cores. Appropriate for grades 5-8 and 9-12, this activity addresses National Science Education Content Standard A: Science as Inquiry and Standard D: Earth and Space Science.

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