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The AAPG/Datapages Combined Publications Database

CSPG Bulletin

Abstract


Bulletin of Canadian Petroleum Geology
Vol. 30 (1982), No. 1. (March), Pages 29-33

The Chronosome and Supersome: Terms Proposed for Low-Rank Chronostratigraphic Units

E. H. Schultz

ABSTRACT

Stratigraphic classification can not be utilized if it concerns itself only with the worldwide division of rocks and ignores the specific requirements of thousands of petroleum geologists who function on the local level.

Patterns of contrasting but contemporaneous facies are subject to scientific and economically important investigation. The promotion of sound environmental interpretation must have a chronostratigraphic (time-stratigraphic) orientation. The need for units of constant time value below the rank of stage is abundantly reflected in the reviewed literature.

The term CHRONOSOME is proposed for the body of rock enclosed between two markers that may approximate isochronous surfaces and so define the upper and lower limits of a single period of deposition within a basin.

The term SUPERSOME is also proposed to group contiguous and depositionally sequential chronosomes.


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