Results 121 to 130 of about 6,911 (176)

The role of stratotypes in stratigraphy

Earth-Science Reviews, 2005
exaly   +2 more sources

International stage stratotypes

1996
All of the Upper Carboniferous stages in the so-called ‘Heerlen Classification’, from the Chokierian to the Bolsovian, have their base stratotypes in northern England (the Westphalian D base stratotype has yet to be selected, although sites in South Wales will probably be strong contenders).
C. J. Cleal, B. A. Thomas
openaire   +1 more source

Stratotype of Ordovician Whiterock Series

PALAIOS, 1991
Here the authors reaffirm and document fossil ranges at the stratotype section for the base of the Whiterock Series in Whiterock Canyon, northern Monitor Range, Nevada, and designate a reference section at Meiklejohn Peak, Bare Mountain quadrangle, Nevada.
Reuben James Ross, Raymond L. Ethington, Charles E. Mitchell   +2 more
openaire   +1 more source

Stratotype Turonien.

2018
L'Anjou et la Touraine constituent deux des plus belles régions historiques de France, classées au Patrimoine mondial de l'Humanité par l'Unesco. Cette aire géographique est souvent associée dans notre esprit aux châteaux de la Loire, aux vins et à une douceur climatique.
Amédro, Francis, Matrion, Bertrand, Robaszynski, Francis   +2 more
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Introduction to Part A Chronostratigraphic units: Historical stratotypes and global stratotypes

1995
Publisher Summary This chapter discusses historical and global stratotypes. In agreement with common usage, the word “stage” is used in this presentation; both for the actual rocks deposited during an interval of time, and for the interval of time itself (sometimes called “age”).
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Stratotype Lutetian

With Île-de-France as its stratotype region, the Lutetian is an internationally recognized and even famous geological stage. The fossils found in it, the monuments built with stone of that age and the historical figures who took an interest in it all justify this notoriety.
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Pennsylvanian System stratotype sections, West Virginia

1986
Abstract The establishment of a standard reference section for the Pennsylvanian System in the Appalachian basin was necessitated by inconsistencies and variations in the application and correlation of the loosely defined Lower, Middle, and Upper Pennsylvanian Series.
Kenneth J. Englund, Harold H. Arndt, Stanley P. Schweinfurth, William H. Gillespie   +3 more
openaire   +1 more source

Chapter A5 Langhian, serravallian, and tortonian historical stratotypes

1995
Publisher Summary This chapter discusses Langhian, Serravallian, and Tortonian historical stratotypes. Chronostratigraphy does represent a basic common language of communication in Earth Sciences. However, most chronostratigraphic units of the standard Geologic Time Scale lack an appropriate and rigid definition in the rock stratigraphic record ...
RIO, DOMENICO, Cita M. B., Iaccarino S., Gelati R., Gnaccolini M.   +4 more
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Chapter A1 The aquitanian historical stratotype

1995
Publisher Summary The Aquitanian fossiliferous marine deposits underlie a dark grey limestone with Planorbis and Limnaea. This unit is considered to be the top of the Aquitanian in this area. A level with Pecten beudanti is found above it, and contains a new fauna characteristic of the Burdigalian.
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Stratotypes and an International Geochronologic Scale

1978
An international geochronologic scale is needed in order to provide a single universal standard of reference for dating rock strata, or events recorded in rock strata, anywhere in the world. There are many possible means of relating rock strata and the geologic events they record to the passage of time--physical relations of strata (law of ...
openaire   +1 more source