Chemical remnant magnetism

Palaeomagnetic dating techniques, which rely upon measuring the chemical remnant magnetism (CRM) preserved by secondary iron minerals within the duricrust, have proved relatively successful. This approach effectively records the cessation of the mineralogical transformations that cause... [Pg.78]

Fig. 21 (a) Open-framework architecture of S-[ Mn(HL)(HjO) jMn- Mo(CN)7 2"2HjO (water molecules are represented as red spheres). Field cooled magnetization (o,H= 100 Oe), zero field cooled ( ), and remnant magnetization (0) as a function of temperature for the hydrated (b) and dehydrated (c) solids. Reprinted with permission from ref 204. Copyright 2007, American Chemical Society... [Pg.245]

Temperature dependence of FCM, RM, and ZFCM of (SP)[Fe"Fe "(dto)3] before (a) and after UV irradiation (350 nm, 40 mWcm ) at 300 K (b and c), and 70 K (d). FCM field-cooled magnetization, RM remnant magnetization, ZFCM zero-field-cooled magnetization. Applied magnetic field is 30 Oe. (Reproduced from Ref. 18 with permission of the American Chemical Society.)... [Pg.166]

Big Chemical Encyclopedia