Results 171 to 180 of about 6,336 (226)

Study on the Development, Evolution, and Main Controlling Factors of Gypsum Moldic Vugs in Ma5₄ ¹, Central Ordos Basin. [PDF]

ACS Omega
He J, Tang C, Zhao G, Du J, Mei X, Zhang Z, Zhao Z, Yao J.   +7 more
europepmc   +1 more source

U-Pb Detrital Zircon Geochronology and Its Tectonic Implications for the Middle Devonian at the Northwestern Margin of the Yangtze Block. [PDF]

ACS Omega
Guo T, Yang WF, Zeng L, Wang C.
europepmc   +1 more source

Early colonization of the deep-sea bottom-The protracted build-up of an ecosystem. [PDF]

Proc Natl Acad Sci U S A
Buatois LA, Mángano MG, Paz M, Minter NJ, Zhou K.   +4 more
europepmc   +1 more source

Mechanisms of global climate change during the five major mass extinctions. [PDF]

Sci Rep
Kaiho K.
europepmc   +1 more source

Sequence division and coal facies research methods of the deep No. 8 coal seam in the Daning-Jixian Block, eastern margin of Ordos basin. [PDF]

Sci Rep
Kong J, Xiong X, Ding R.
europepmc   +1 more source

New evidence for the Hirnantian (Upper Ordovician) in Belgium?

Carnets de Geologie, 2005
Vanmeirhaeghe, J., Yans, Johan, Préat, A., Verniers, J.   +3 more
openaire   +1 more source

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Upper Ordovician Phacopida (Trilobita) from Tasmania

Alcheringa, 1999
Eastonian trilobite faunas of the Gordon Group in Tasmania include the new species Ceraurinella oepiki, Erratencrinurus trippi, and Pliomerina trisulcata, as well as a reedocalymeninid probably allied to Sarrabesia Hammann & Leone, 1997. Ceraurinella and Erratencrinurus have not previously been reported from Australia, the former being predominantly ...
Gregory D Edgecombe, Maxwell R Banks
exaly   +2 more sources

Crinoids from the Upper Ashgill (Upper Ordovician) of Wales

Journal of Paleontology, 1993
A collection of small crinoids and crinoid debris from the Ashgill (Rawtheyan?) of Cnwce, near St. Clears, Dyfed, southwest Wales includes numerous crowns ofAithriocrinus strahanin. gen. and sp. incertae familiae, an indeterminate 10–armed camerate(?) and an indeterminate multiple-armed camerate.Aithriocrinus strahaniwas previously considered to be a ...
Stephen K. Donovan, Cornelis J. Veltkamp
openaire   +1 more source

Upper Ordovician of Central Texas

AAPG Bulletin, 1953
ABSTRACT Discovery of Upper Ordovician strata in the Llano uplift of central Texas is here reported. These rocks, named the Burnam limestone, are considered to be correlative with some part of the Richmond group, because of the presence in them of Halysites (Catenipora), Streptelasma rusticum, Austinella, Mcewanella raymondi ...
Virgil E. Barnes, Preston E. Cloud, Helen Duncan   +2 more
openaire   +1 more source