EarthRef.org Digital Archive (ERDA)
Development and Maintenance by the EarthRef.org Database Team

Detailed File Information
Paleointensity Data for Earth's Magnetic Field
File Name m00004.img.533.paleointensity.data.magn.field.jpg
Data Type graphs
Computer Program Adobe Illustrator CS2
File Size 226.00 KB - 2 files [ jpg,pdf ]
Expert Level Middle School (Grade 6-8)
Contributor ERESE Database Team
Source Enduring Resources for Earth Science Education (ERESE)
Resource Matrix The Earth's Magnetic Field
Description
The graph shows data from different samples that have allowed scientists to determine the strength of the dipole moment for the Earth's magnetic field over the past 9000 years. Based on the graph, it can be seen that the intensity of the magnetic field has fluctuated throughout Earth's history. Most magnetic field data is obtained from oceanic sediment. The numbers for each data point in the graph represent the total number of samples analyzed to obtain the magnetic field intensity. When there is more than one sample the data is averaged to determine the magnetic intensity.
Click to return to previous page
Home  |  Databases  |  Events  |  Tools  |  Publications  |  Links  |  Google Site Search
Copyright Disclaimer  |  Who's Who  |  Database Team  |  Browsers and Plugins  |  Database Indices
Sponsored by NSF
EAR 0000998
Webservices and Database Support by the San Diego Supercomputer Center
Supported by Scripps Institution of Oceanography and the College of Earth, Ocean and Atmospheric Sciences