POST-DEPOSITIONAL DETRITAL REMANENT MAGNETISATION IN CHINESE LOESS: PRELIMINARY RESULTS OF LABORATORY EXPERIMENTS

Rok, strany: 1993, 335 - 338

The role of water in the development of a post-depositional magnetisation in Chinese loess was investigated in a series of laboratory experiments. Both wetted and dry dissagregated loess samples developed a magnetisation related to the applied magnetic field. It was possible to distinguish between an unstable viscous magnetisation in the dry samples and a stable component developed in the wetted samples. This can be attributed to magnetic grain re-alignment in water-filled pore spaces. In the natural environment this process can occur during seasonal saturation of the top-most loess layer, giving rise to a zone of detrital PDRM development that migrates upwards with loess accumulation, producing a continuous record of geomagnetic field behaviour.

ISO 690:

Mcintosh, G. 1993. POST-DEPOSITIONAL DETRITAL REMANENT MAGNETISATION IN CHINESE LOESS: PRELIMINARY RESULTS OF LABORATORY EXPERIMENTS. In Geologica Carpathica, vol. 44, no.5, pp. 335-338. 1335-0552.

APA:

Mcintosh, G. (1993). POST-DEPOSITIONAL DETRITAL REMANENT MAGNETISATION IN CHINESE LOESS: PRELIMINARY RESULTS OF LABORATORY EXPERIMENTS. Geologica Carpathica, 44(5), 335-338. 1335-0552.