An OSU Facility supported by the National Science Foundation
Welcome to the Paleo-and-Environmental Magnetism Laboratory in the College of Oceanic and Atmospheric Sciences at Oregon State University. The P-Mag Lab is an NSF supported OSU facility dedicated to sediment magnetism and a resource for Pacific NW, national and international scientific communities.
The U-Channel Magnetometer
The P-Mag Lab is built around the unique capabilities of the liquid helium free 2G Enterprises superconducting rock magnetometer (SRM) optimized for u-channel samples. U-channel samples are rigid u-shaped plastic liners (2 x 2 cm cross-section) that completely enclose cored sediments up to 1.5 m in length. This state-of-the-art system provides the capability to rapidly acquire high quality environmental and paleomagnetic data continuously on u-channel samples. The several orders of magnitude increase in data acquisitions allows new archives to be explored and older ones to be more thoroughly examined. Discrete samples can also be rapidly measured with this system.
Our approach is to use the high throughput of the u-channel SRM to:
- Reconstruct the space/time patterns of the geomagnetic field.
- Develop and employ geomagnetic change as a stratigraphic dating tool.
- Reconstruct environmental variability through the rock magnetic response to laboratory magnetizations.
Materials for study come from a wide range of sources, including international science programs such as the Integrated Ocean Drilling Program and the International Continental Drilling Program, PI driven field programs and retrospective research on the large core collection available at the OSU-Marine Geology Repository.
Recent Blog Posts
The P-Mag lab welcomes two new graduate students, Deepa Dwyer and Alyson Churchill. Both are in the beginning stages of their PhDs, Deepa is working with Dr. Joe Stoner looking at sediment samples from Exp. 341 in the Gulf of Alaska and Alyson is working with Dr....
How to distinguish the roles of transport and source changes in sedimentary records (New paper in G-Cubed!).
Understanding how changes in sediment transport and changes in sediment provenance influence sedimentary and magnetic records is a fundamental, but challenging problem in the study of sediment cores. The OSU P-mag lab has a new paper out in G-cubed led by Rob Hatfield...
In December, there was a fire in Burt Hall. Thankfully, the P-mag Lab survived with very minimal damage, but the building around us needs a lot of work. So today, Joe, Brendan and our friends Dave and Chris from 2-G Enterprises took apart the magnetometer and moved...