Results 91 to 100 of about 1,497,171 (212)
, 2017 A diverse crinoid fauna is described from the Upper Ordovician (Katian) Fombuena Formation from the eastern Iberian Chains of Spain. New crinoids include the diplobathrid camerates Fombuenacrinus nodulus n. gen. n. Sp., Goyacrinus gutierrezi n. gen.
Cole, Selina R. +9 more
core +1 more source
Conodont biostratigraphy in the Middle–Upper Ordovician boundary beds of Estonia [PDF]
Estonian Journal of Earth Sciences, 2008 Conodonts of the uppermost Uhaku, the Kukruse, and the lower Haljala stages (uppermost Darriwilian and lower Sandbian) of Estonia are discussed. The distribution of conodonts within the Pygodus serra, P.
Viira, Viive
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Geochemical and Geological Characteristics of the Upper Ordovician-Lower Silurian Shales in the Upper Yangtze Basin, South China: Implication for the Shale Gas Exploration. [PDF]
ACS Omega, 2020 Sun YY +9 more
europepmc +1 more source
On the Upper Ordovician unconformity in the Pyrenees
In recent years, contradictory reports about whether or not an unconformity exists at the base of the Upper Ordovician succession of the Pyrenees have been made. In the Cerdanya area (Central Pyrenees), good outcrop evidence for this unconformity is displayed at the base of the Rabassa conglomerates.
Casas Tuset, Josep Maria|| +1 more
openaire +1 more source
The paleomagnetism of the Upper Ordovician Fairview Formation [PDF]
, 1977 A paleomagnetic study was conducted involving the Upper Fairview (Upper Ordovician, Maysvillian) Formation and Lower Fairview Formation. The purpose of this study was to determine the possibility of measuring the geomagnetic polarity reversals occurring ...
Bartman, Robert C.
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Upper Ordovician glacial deposits in Saudi Arabia
Episodes, 1990 One of the major results of the geologic mapping program of the Saudi Arabian Directorate General of Mineral Resources is the demonstration of ubiquitous Upper Ordovician glacial and periglacial, continental to subaquatic deposits in lower Paleozoic outcrops of Saudi Arabia.
openaire +2 more sources
Upper Ordovician trilobites from northern Yukon
, 1966 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Lenz, Alfred C., Churkin, Michael
openaire +2 more sources
地质科技通报Objective The Well Tashen 5 that was completed in 2021 has a burial depth of 9 017 m and is currently the deepest drilling well in Asia. It is also the first hydrocarbon breakthrough in the dolomite sectionof Upper Sinian at a depth of 8 780-8 840 m in ...
Mingxia LUO +4 more
doaj +1 more source
, 2016 A new collection of upper Middle Ordovician (Darriwilian) - perhaps extending into lower Upper Ordovician - conodonts is taken from the offshore P4 well (56o58’47.9’’N, 17o1’11.9’’E).
Ficini F., Stouge S., BAGNOLI, GABRIELLA
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Sculpture education program / Upper Iowa Univesity
, 1998 [Title], Upper Iowa University Digital Archives, [Reference URL].
Upper Iowa University
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