ISSN:
1573-0956
Keywords:
Deep sea sediments
;
lake sediments
;
loess
;
palaeoclimatology
;
palaeoenvironment
;
palaeosol
;
rock magnetism
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract Rock magnetic parameters of sediments reflect palaeoenvironmental and palaeoclimatic conditions during deposition in the marine and in the continental realm. The processes which lead to enhancement or degradation of the magnetic properties are well known – though not completely understood. They include variable terrigenous material influx, organic and inorganic in situ formation of ferromagnetic minerals and diagenetic destruction of these minerals. Cyclical changes in the magnetic mineral assemblages occurring at the orbital periodicities involved in standard Milankovitch theory have been observed in numerous sedimentary records, at least during the last seven million years. This confirms the relationship between rock magnetism and past global change. Quantitative interpretation of the magnetic signals, however, is still in its infancy and is hampered by the complex interplay of the signal formation processes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1006583809200
Permalink
