TRM (thermoremanent magnetization) occurs when a substance is cooled, in the presence of a magnetic field, from above its Curie temperature to below that temperature.
TRM also can occur when dealing exclusively with temperatures below the Curie temperature.
Jr,sat is the remanent magnetization that remains when a saturating (large) applied field is removed, and Jr is the residual magnetization left by some process apart from IRM saturation, as, for example, TRM.
Although several processes are capable of altering the TRM, including reheating and oxidation at the seafloor, it is remarkably robust, as is evidenced by magnetic anomalies as old as 165 million years in the far western equatorial Pacific.
The dominant mechanism of permanent magnetization is the thermoremanent magnetization (or TRM) of iron-titanium oxide minerals.
These minerals lock in a TRM as they cool below 200 300 °C (392 572 °F) in the presence of Earth's magnetic field.
TRM, which is based in Washington state and is expanding across the country, has just been granted $8.5 million by venture capitalists.
Natural remanent magnetization is some combination of remanences; typically TRM in an igneous rock, perhaps DRM or CRM or both in a sedimentary rock, and all with an additional VRM.
After Clinton arrived at the White House, his friend, the television producer Harry Thomason, advised him to fire the current travel staff because of office mismanagement and replace their charters with his partner Darnell Martens' TRM, Inc.'s planes and his business.
