Results 91 to 100 of about 1,840 (219)

ORDOVICIAN (DARRIWILIAN–KATIAN) BRACHIOPODS FROM THE SOUTHEASTERN MARGIN OF AVALONIA (CONDROZ INLIER, BELGIUM)

open access: yesRivista Italiana di Paleontologia e Stratigrafia
A low-diversity, relatively well-preserved brachiopod fauna is documented in detail for the first time from the Sandbian–Katian (Upper Ordovician) siliciclastic rocks of the Oxhe Inlier (Belgium), i.e.
Yves Candela   +2 more
doaj   +1 more source

The Ordovician brachiopod genus Cyrtonotella: taxonomy and distribution in the Baltic Basin [PDF]

open access: yesEstonian Journal of Earth Sciences, 2019
The taxonomy of the Baltic Ordovician orthoidean brachiopods of the genus Cyrtonotella Schuchert & Cooper, 1931 is discussed, two neotypes are suggested and emended descriptions of species and subspecies are presented.
Linda Hints
doaj   +1 more source

Tempestites in a Teapot? Condensation-Generated Shell Beds in the Upper Ordovician, Cincinnati Arch, USA. [PDF]

open access: yes, 2012
Skeletal concentrations in mudstones may represent local facies produced by storm winnowing in shallow water, or time-specific deposits related to intervals of diminished sediment supply.
Brett, Carlton E.   +2 more
core   +2 more sources

Biostratigraphy of Acritarchs and Chitinozoans in Ordovician Strata from the Fazel Abad Area, Southeastern Caspian Sea, Alborz Mountains, Northern Iran: Stratigraphic Implications [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2017
Sixty-four surface samples from the Lower Palaeozoic rock units (mainly Lalun,Abastu and Abarsaj formations) near Kholin-Darreh village in the Fazel Abad area,southeastern the Caspian Sea, Northern Iran, were analyzed to determine their agerelationships.
M. Ghavidel-syooki
doaj  

Building capacities in Caribbean animal health in the : The VEP (Veterinary Epidemiologist / Para-Epidemiologist) Project [PDF]

open access: yes, 2012
Disease surveillance and control within the Caribbean has historically been difficult. The region is made up of over 31 countries, territories, and protectorates, with concomitant differences in language, culture, and historical experiences.
Delgado, Amy   +6 more
core  

First record of ostracods from the Upper Ordovician red-coloured marine sandstones of the Tierekeawati Formation in Tarim Basin, NW China: implications on palaeoenvironment and palaeobiogeography

open access: yesJournal of Palaeogeography, 2020
Ostracods are described for the first time from the red-coloured marine sandstones of Arisu section (Arisu red beds) of the Upper Ordovician Tierekeawati Formation in Kalpin area of northwestern Tarim Basin, Xinjiang Uygur Autonomous Region (Xinjiang ...
Jun-Jun Song   +5 more
doaj   +1 more source

The Pre-Variscan sequence of the Carnic Alps [PDF]

open access: yes, 2015
The Pre-Variscan sequence of the Carnic Alps includes rocks deposited between the Middle Ordovician and the early Late Carboniferous, and represents one of the most continuous sequence of the world in that time interval.
Corradini, C   +3 more
core  

A modern assessment of Ordovician chitinozoans from the Shelve and Caradoc areas, Shropshire, and their significance for correlation [PDF]

open access: yes, 2009
New chitinozoan data are presented from the classical section along the Onny River in the type Caradoc area, and from the deeper-water sections in the Shelve area, including the former British candidate GSSP for the base of the Upper Ordovician Series ...
Achab   +23 more
core   +2 more sources

Assimilation, Hydrothermal Alteration and Graphite Mineralization in the Borrowdale Deposit (UK) [PDF]

open access: yes, 2009
The volcanic-hosted graphite deposit at Borrowdale was formed through precipitation from C-O-H fluids. The G13C data indicate that carbon was incorporated into the mineralizing fluids by assimilation of carbonaceous metapelites of the Skiddaw Group by ...
Barrenechea, Edurne   +5 more
core   +5 more sources

Pecularities of the lithology and fauna of the early Katian (Ordovician) in the Lithuanian facies zone

open access: yesGeologija. Geografija, 2016
The lithology and fauna on the south-eastern slope of the Middle Lithuanian Depression within the  Lithuanian facies zone (belt) is discussed in the  present paper. The study material consists of core from two deep drill-holes: Taučionys-49 and Drūkšiai-6 (Kazimirovo).
openaire   +2 more sources

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