Results 171 to 180 of about 1,952 (183)

Upper Ordovician δ13Corg chemostratigraphy, K-bentonite stratigraphy, and biostratigraphy in southern Scandinavia: A reappraisal

Palaeogeography, Palaeoclimatology, Palaeoecology, 2016
Mats E Eriksson
exaly  

Upper Ordovician Glaciation in Northwest Africa? Reply

Geological Society of America Bulletin, 1971
openaire   +1 more source

Cryptospores from the Katian (Upper Ordovician) of the Tungus basin: The first evidence for early land plants from the Siberian paleocontinent

Review of Palaeobotany and Palynology, 2016
Elena Raevskaya, Thomas Servais, Charles H Wellman   +2 more
exaly  

Astronomically forced cyclicity in the Upper Ordovician and U–Pb ages of interlayered tephra, Oslo Region, Norway

Palaeogeography, Palaeoclimatology, Palaeoecology, 2015
Henrik H Svensen, Fernando Corfu
exaly  

Bioclaustrations in Upper Ordovician bryozoans from northern Estonia

Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2018
Olev Vinn, Andrej Ernst, Ursula Toom
openaire   +1 more source

Palynostratigraphy of upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa

1999
VECOLI M., TONGIORGI, MARCO, ABDESSELAM ROUGHI F. F., BENZARTI R., MASSA D.   +4 more
openaire   +2 more sources

Sedimentological characteristics and reservoir quality prediction in the Upper Ordovician glaciogenic sandstone of the In-Adaoui-Ohanet gas field, Illizi basin, Algeria

Journal of Petroleum Science and Engineering, 2019
exaly  

The geochemical characteristics and factors controlling the organic matter accumulation of the Late Ordovician-Early Silurian black shale in the Upper Yangtze Basin, South China

Marine and Petroleum Geology, 2016
exaly  

Fracture pore evaluation of the Upper Ordovician Wufeng to Lower Silurian Longmaxi Formations in southern Sichuan Basin, SW China

Petroleum Exploration and Development, 2017
exaly  

Organic petrographic analysis of artificially matured chitinozoan- and graptolite-rich Upper Ordovician shale from Hudson Bay Basin, Canada

International Journal of Coal Geology, 2018
exaly