Computer-assisted interpretation of depositional palaeoenvironments based on foraminifera

Author : Philip Lesslar
Publication : Bulletin of the Geological Society of Malaysia
Page : 103-119
Volume Number : 21
Year : 1987

Bulletin of the Geological Society of Malaysia, Volume 21, Dec. 1987,  pp. 103 – 119

Computer-assisted interpretation of depositional palaeoenvironments based on foraminifera


Sarawak Shell Berhad, Lutong, Sarawak


Abstract: In Sarawak Shell‘s Geological Laboratory, well samples are analysed in part for their foraminiferal content and this information is used for interpreting the depositional environment and geological age of the section penetrated. This paper addresses the former usage of foraminifera data.

With the aim of minimising the subjectivity involved and of attaining a consistent basis for interpretations, cluster analysis, environmental range charts, identification matrices and a set of interactive programs have been worked into a scheme which enables probabilistic computer-assisted interpretation to be carried out on samples utilising the presence or absence of species. Results are listed with their corresponding probability values and aid the investigator in making consistent environmental interpretations.

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