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Browsing by Subject "EEC"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Analiza względnych zmian wiekowych pola magnetycznego Ziemi (1966-2005) wzdłuż profilu Zgorzelec-Wiżajny
    (Wydawnictwa AGH, 2006) Bojdys, Grzegorz; Grabowska, Teresa; Marchewka, Józef; Suchoń, Bogusław
    The paper presents results of the studies on local relative time variations of total geomagnetic field observed along the 700 km long profile crossing the Paleozoic Platform (PLZ), Transeuropean Suture Zone (TESZ) and East European Craton (EEC). The study is a continuation of the research conducted in the years 1966-2000. Measurements of the Earth's magnetic field made in the last five years revealed a new phenomenon, which was a faster increase of the magnetic field observed at the EEC. They proved also that the dynamics of the magnetic field variations observed for the EEC was greater than it was for TESZ and PLZ. The character of geomagnetic field variations observed during the last five years caused the modification of method of studies of relative secular geomagnetic variations.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Wyniki badań nad lokalnymi zmianami pola magnetycznego Ziemi na lubelskim skłonie wschodnioeuropejskiego kratonu (profil Parczew – Chełm)
    (Wydawnictwa AGH, 2010) Bojdys, Grzegorz; Grabowska, Teresa; Wójcik, Aleksander; Medoń, Zdzisława
    The local relative changes of the total intensity geomagnetic field in time are presented against the background of the geological structure of Lublin-Podlasie slope (LPSK) of the East European Craton. The research concerned measurement results of the total intensity (T) of the geomagnetic field, taken in the last 12 years (1997-2008) at 20 sites located along the Parczew - Chełm profile. Relative temporal changes of the geomagnetic field were determined on the basis of values of geomagnetic field calculated with reference to geomagnetic field measured at the base. These changes are presented as graphs, and in the form of space-time 2D and 3D representations, showing their relationship with the magnetic anomaly map. The cause of local relative changes was attempted to be explained by 2D magnetic modeling assuming that the changes of the induced magnetization of the basement crystalline rocks are result of the geomagnetic secular variations.