ISSN:
1432-1866
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Geologie und Paläontologie
Notizen:
Abstract In the St. Andreasberg ore district, southwest Harz, at some time between the main and subsequent stages of mineralization sensu Wilke (1952), potassium feldspar (adularia) was formed hydrothermally. Based on isotopic dating (Rb/Sr, 40Ar/39Ar), the formation of this mineral is ascribed to the Early Cretaceous. Thus, part of the St. Andreasberg mineralization is proved to have been formed in the Late Mesozoic. The mineralization process forming feldspar does not coincide with magmatic phases of the area.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00206715
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