KORNGRÖSSENANALYSE GROBKLASTISCHER SEDIMENTE MIT HILFE VON AUFSCHLUSS‐PHOTOGRAPHIEN

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Abstract
SUMMARY: Granulometric analysis of rudites on outcrop‐photographs As it is impossible to determine the grain‐size distribution of well‐consolidated rudites by sieving, it has been attempted to use outcrop‐photographs for their granulometric analysis. In order to assess the accuracy of this photo‐method, nineteen samples of poorly consolidated rudites were subjected to analysis by both methods. It resulted that the two sets of data obtained could be correlated rather well, using a relatively simple formula.Although some broader experimental work would still seem advisable, it became quite clear that the photo‐method is simpler as well as more accurate than the sieving method. It is therefore suggested to develop it as the standard method for granulometric studies of all rudites.

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