Digitale Medien
Springer
Cellular and molecular life sciences
11 (1955), S. 172-174
ISSN:
1420-9071
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
,
Medizin
Notizen:
Summary In this preliminary work, the possibility of dating crystalline rocks by pleochroic haloes has been studied. Halo-microphotometry has been combined with measurement of the alpha-activity of the inclusions by the photographic method. Standard thin sections of well dated granites have been used for calibration purposes. The reciprocity law is shown to be valid within the limit of error. The resolving power of this method depends essentially on the age ratio. Tertiary and primary rocks are easily separated.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02161298
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