Superconducting rock magnetometer with automated sample changer

An 8-foot tall metal frame surrounds a silvery metal drum, sprouting tubes and wires that converge on a desktop computer monitor

Detailed Description

This instrument measures the remanent magnetic moment of rock specimens with a practical sensitivity from 1 emu to 5 x 10-8 emu.  The magnetometer is housed in our shielded room.  This apparatus represents the latest iteration of our automated sample handling capability. In 2008, a major upgrade was guided by Prof. Joe Kirschvink (Caltech) and members of RAPID (Rock- and Paleo-magnetic Instrument Development), a consortium of paleomagnetists in academia and government. Our latest instrument represents the evolution of that now-classic ‘snake-chain’ design.


Image Dimensions: 632 x 843

Date Taken:

Location Taken: US


USGS photo by Tony Pivarunas