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The AAPG/Datapages Combined Publications Database

AAPG Special Volumes


Pub. Id: A108 (1973)

First Page: 230

Last Page: 238

Book Title: M 19: Arctic Geology

Article/Chapter: Comparative Appraisal of Zonal Scales for Warm-Water and Arctic Areas: Regional Arctic Geology of the USSR

Subject Group: Geologic History and Areal Geology

Spec. Pub. Type: Memoir

Pub. Year: 1973

Author(s): V. V. Menner (2)


Much work has been done in the last decade toward setting up a worldwide stratigraphic scale based on zonal subdivisions. The outlook for resolving the remaining problems regarding such a worldwide scale is optimistic for the warm-water belt; however, the cold-water Arctic and Antarctic areas present greater difficulties. The erroneous assumption is commonly made that sections in cold-water basins can be dated on the basis of concomitance of definite species of certain genera in subtropical sections. Little is known about rates of evolution for particular groups in various regions. Disagreement exists on the necessity of working out independent zonal scales for Arctic regions. Such scales obviously have merit; however, it might be wise to use a local zonal scale for geolo ic maps, where a single scale is required, in conjunction with a system of indices indicating the degree of precision with which a certain division is isolated.

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