Results 71 to 80 of about 759 (184)

LA-ICP-MS U-Pb dating of Carboniferous ash layers in the Cantabrian Zone (N Spain): stratigraphic implications

open access: yes, 2020
Seven centimetre-thick volcanic ash-fall layers interbedded within the thick Carboniferous successions of the Cantabrian Zone in northern Spain were dated by U–Pb zircon laser ablation inductively coupled plasma mass spectrometry across an interval ...
Hofmann, Mandy   +5 more
core   +1 more source

Bivalves and brachiopods in the Carboniferous - Early Permian of Argentine Precordillera: Diversification and faunal turnover in Southwestern Gondwana

open access: yesGeologica Acta, 2011
Diversification patterns and faunistic turnovers of bivalves and brachiopods through the Carboniferous - Early Permian interval in the central western Argentinian basins are analyzed and compared with the global events proposed in former studies.
A.F. STERREN, G.A. CISTERNA
doaj  

Late Pennsylvanian carbonate platform facies and coral reef: new insights from southern China (Guizhou Province). [PDF]

open access: yesFacies, 2021
Maillet M   +8 more
europepmc   +1 more source

Stratigraphic distribution of macerals and biomarkers in the Donets Basin: Implications for paleoecology, paleoclimatology and eustacy [PDF]

open access: yes, 2006
More than one hundred and thirty coal seams and coaly layers occur in the Donets Basin (Donbas). Twenty-eight (52 samples) of them, ranging in age from Serpukhovian (Late Mississipian) to Gzhelian (Late Pennsylvanian), 33 clastics and three limestones ...
Panova, E.A.   +10 more
core  

The chemical and mineral composition of volcanic ash in the Upper Carboniferous deposits of the Usolka section (South Ural, Russia)

open access: yes, 2020
© 2020 IOP Publishing Ltd. All rights reserved. Volcanic ash from the Usolka section, which is proposed as an international standard for global correlation of the lower boundaries of the Kasimovian and Gzhelian Stages, is considered.
Sungatullin R.K.   +3 more
core  

Kasimovian (Late Pennsylvanian) Phylloid Algal Reef in Guizhou, South China: Construction Model and Paleoenvironmental Significance

open access: yes
Abstract Phylloid algae are the dominant reef-building organisms during the Pennsylvanian, and they have a widespread distribution. However, the construction model and the controlling factors of the phylloid algal reef during this period were not well understood.
Ningfeng Du   +7 more
openaire   +1 more source

The systematic and palaeoecological significance of Neuropteris ovata (Medullosales) cuticles from the Stephanian Stage of the Puertollano Basin, Spain

open access: yes
Cuticles from Neuropteris ovata foliage (Medullosales) from Stephanian strata in the Puertollano Basin show epidermal structures similar to those seen in Kasimovian coal balls from North America.
Cleal, Christopher J, Šimůnek, Zbyněk
core   +1 more source

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