Article ID Journal Published Year Pages File Type
1044938 Quaternary International 2006 8 Pages PDF
Abstract
One of the possible mechanisms of the connection between long-term climate changes and geomagnetic field variations is discussed. Climate fluctuations with periods of n×(104-105) years can be explained by Milankovitch's astronomic theory. The fluctuations with periods of n×(102-103) years are discussed in the framework of a hypothesis on the connection with secular variations of the geomagnetic field. On the basis of palaeomagnetic data from N-W Russian lake sediments (basically from Karelia and the Kola Peninsula) for the time interval 13,000-5000 years ago, the drift of virtual geomagnetic poles is calculated. Analysis of this data with regard to palaeotemperature and palaeoclimate phases in N-NE Europe is carried out. The alternation of stadial (cold) and interstadial (warm) stages as a function of approaching (receding from) the virtual geomagnetic pole to N Europe is established. For the last 5 kyr the correlation is confirmed for archaeomagnetic data from the Ukraine.
Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Geology
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