RELACJE METODYCZNE I WIEKOWE POMIĘDZY ANALIZĄ TRAKOWĄ A POTASOWO-ARGONOWĄ NA PRZYKŁADZIE MASYWU KARKONOSZY I JEGO OSŁONY

Abstract

METHODOLOGY AND AGE RELATIONS OF THE FISSION TRACK AND K-Ar METHODS THE CASE OF THE KARKONOSZE MASSIF AND ITS ENVELOPEAbstract. Isotopic methods have been gaining their importance in Poland in last decades. The understanding on the interpretation potential of isotopic determinations of minerals has been growing up as well. In that context, age relations and methodology of the fission track and K-Ar methods have been presented based on the case of minerals forming rocks of the Karkonosze Massif and its northern metamorphic envelope. The presented results are the compilation of earlier fission track determinations from the Karkonosze-Izera Block (Jarmołowicz--Szulc, 1984), K-Ar data from the same area (Jarmołowicz-Szulc et al., 2009) and newer methodological data from the Karkonosze granitoid (Danišik et al., 2010). Advantages of the fission track method have been shown, i.e., interpretation possibilities of burial and exhumation in geological history of rocks. Importance of the K-Ar method has been presented, in that determination of a cooling age after the pluton uplift.