Better cheaper faster ultrahigh magnetic sensing of magnetic flux and field across a broad dynamic range.
Typical setups are networked fields of multiple axis sub nanotesla magnetic sensors with processing to reduce noise and subtract interference in order to extract a differential change across time and space to convert to a deep earth image.
You know, the usual stuff.
The essential principal is a fixed sensor (network) that records the diurnal (daily) magnetic flux and specifically locals for local 'drag' caused by local features (deep metal deposits, more generally volumes with varying magnetic properties).
Assume for now (subject to verification, of course!) that this material is a non-Cooper-pair superconductor.
Could one still build Josephson junctions -- and SQUIDs -- from this material?
If the answer is "yes", it's going to make a whole lot of magnetotelluric geophysicists very, VERY happy.