Results 91 to 100 of about 6,911 (176)

New Stratigraphic Rank for the Carboniferous, Mississippian, and Pennsylvanian in Kansas [PDF]

open access: yes, 2009
A new classification for the Carboniferous System/Period is formally adopted by the Kansas Geological Survey (KGS), and Zeller (1968) is modified accordingly.
Franseen, Evan K.   +4 more
core   +3 more sources

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  

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  

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 stratigraphy of the Penarth Group (Late Triassic) of the East Devon coast [PDF]

open access: yes, 2008
The cliff and foreshore exposures in the Devon part of the Dorset and East Devon Coast World Heritage Site expose an unbroken late Triassic to early Jurassic succession.
Gallois, Ramues W
core  

The upper Bedoulian and lower Gargasian Ostracoda of the Aptian stratotype: Taxonomy and biostratigraphic correlation

open access: yesCarnets de Géologie, 2007
In the vicinity of Saint-Saturnin-lès-Apt (Vaucluse, SE France), which is included in the area of the historic Aptian stratotype of Apt-Gargas, are four sections in a succession that permits the study in a very detailed and continuous way of the last ...
Tronchetti Guy   +2 more
doaj  

Les Ostracodes du Bédoulien supérieur et du Gargasien inférieur du stratotype d'Apt : Systématique et corrélations biostratigraphiques

open access: yesCarnets de Géologie, 2007
Dans les environs de Saint-Saturnin-lès-Apt (Vaucluse, SE France), partie intégrante du secteur stratotypique historique de l'Aptien d'Apt-Gargas, une succession en relais de quatre coupes permet d'étudier de façon très détaillée et continue les ...
Tronchetti Guy   +2 more
doaj  

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