Results 91 to 100 of about 2,597 (164)

The regional stratotype section and point for the base of the Hirnantian Stage (the uppermost Ordovician) at Mirny Creek, Omulev Mountains, Northeast Russia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2008
A complete Hirnantian sequence comprising the Normalograptus extraordinarius and N. persculptus biozones is well developed at the Mirny Creek section in the Omulev Mountains.
Koren, Tatyana N.   +1 more
doaj  

Ice-volume-forced erosion of the Chinese Loess Plateau global Quaternary stratotype site

open access: yesNature Communications, 2018
A basic requirement for reconstructing past environmental change is accurate understanding of sediment age. Here, the authors show that the interpretation of a benchmark archive in China has been inaccurate, and that ice volume primarily controls desert ...
T. Stevens   +7 more
doaj   +1 more source

Quaternary Lives

open access: yesGeologija, 2007
After a short-lived »ban«, the Quaternary has again been formalized as a chronostratigraphic unit, consisting of the Pleistocene and the Holocene.
Miloš Bavec
doaj  

Lutetian Stratotype

open access: yes
Avec l\u27Île-de-France comme région stratotype, le Lutétien est un étage géologique internationalement reconnu, voire célèbre. Les fossiles qu\u27on y trouve, les monuments construits avec la pierre de cet âge et les personnages historiques qui s\u27y ...

Auteur

MERLE   +1 more

core  

Sections in the western slope of the south urals perspective for the choice of the famennian regional boundary stratotype point

open access: yesЛитосфера, 2015
The Bol’shaya Barma, Akkyr, Ryauzyak and Kuk-Karauk sections in the western slope of the South Urals are considered to be perspective sections for the identification of Famennian Regional Boundary Stratotype Point (RBSP).
R. Ch. Tagarieva, A. G. Mizens
doaj   +2 more sources

The Gargasian (Middle Aptian) of La Tuilière - St-Saturnin-lès-Apt (area of the Aptian historical stratotype, Vaucluse, SE France): geographic setting and outcrop correlation

open access: yesCarnets de Géologie, 2006
A stratonomic and micropaleontological analysis of the Aptian marls cropping out in the La Tuilière area near Saint-Saturnin-lès-Apt (Vaucluse, SE France), enabled us to reconstitute a continuous succession almost 120 m thick, that includes the upper ...
Moullade Michel   +3 more
doaj  

Conodont evolution and stratotype sign of carboniferous Tournaisian-Visean boundary in South China

open access: yes, 2005
A stratotype section, boundary point and conodont sign have been recommended for GSSP of the Tournaisian-Visean boundary, based on studies of sectional sedimentology, conodont facies and phylogeneses in South China.
Tian, SG, Coen, Michel
core   +1 more source

The Cabo Mondego section as a possible Bajocian boundary stratotype [PDF]

open access: yes, 1990
The Cabo Mondego section situated on the Atlantic coast, 160 km north of Lisbon, presents characteristics of a good boundary stratotype section (G.S.S.P.).
Rocha, Rogério B   +6 more
core   +1 more source

ОПРЕДЕЛЕНИЕ ЯРУСНЫХ ГРАНИЦ МЕЖДУНАРОДНОЙ СТРАТИГРАФИЧЕСКОЙ ШКАЛЫ ПО КОНОДОНТАМ

open access: yesЛитосфера, 2019
Рассматривается процедура определения нижней границы ярусов в нижнем отделе пермской системы по конодонтам с учетом рекомендаций Международной комиссии по стратиграфии по выбору «точки глобального стратотипа границы» (Global Stratotype Section and Point)

doaj  

The proposed Eocene-Oligocene stratotype, SW Alabama: not ideal due to magnetostratigraphic inconsistencies ( USA).

open access: yes, 1986
In the magnetic polarity time scale, the Eocene-Oligocene boundary is within a reversed polarity interval (Chron 13 R) with normal polarity intervals 500 000-750 000 years below and above the boundary.
Sen Gupta, B. K.   +3 more
core   +1 more source

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