Abstract
The two algorithms documented in this paper form the first part of the RASC program for ranking and scaling of stratigraphic events. This FORTRAN IV computer program was developed originally to establish a zonation of the Cenozoic benthonic and planktonic foraminiferal record (highest occurrences of 206 taxa) in 22 wells on the Canadian Atlantic continental margin. The first ranking technique (presorting option) consists of the calculation of ranks based on a comparison of each event to all other events. The second technique (modified Hay method) calculates permutations in which each event is located before events with which it shows inconsistencies by using relative order frequencies. The occurrence of cyclical inconsistencies involving more than two events is described and methods to solve this situation are presented. The position of each event in the final stratigraphic ranking or optimum sequence is an “average” of all positions encountered for it.
Published Version
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