Results 141 to 150 of about 66,668 (274)

Volcanism and basalt weathering drove Ordovician climatic cooling. [PDF]

Nat Commun
Zhao H, Zhang L, Algeo TJ, Lyu Z, Wang X, Hao F.   +5 more
europepmc   +1 more source

Genesis of Phosphatic Sediments in Cincinnatian Series (Upper Ordovician), Southeastern Indiana and Southwestern Ohio: ABSTRACT

, 1985
Anthony J. Martin
openalex   +1 more source

Investigation on the dynamic evolution and evaluation of floor microseismic responses during extra-thick coal seam mining. [PDF]

Sci Rep
Wang H, Yin S, Lian H, Cao M, Hou E, Wang X, Xing G.   +6 more
europepmc   +1 more source

Two exceptionally preserved biotas from North Dakota reveal cryptic Ordovician shelf ecologies. [PDF]

Proc Natl Acad Sci U S A
Mussini G, Butterfield NJ.
europepmc   +1 more source

Early Ordovician sea scorpions from Morocco suggest Cambrian origins and main diversification of Eurypterida. [PDF]

Proc Biol Sci
Van Roy P, Richards JC, Ortega-Hernández J.   +2 more
europepmc   +1 more source

Geochemistry and Evolutionary Characteristics of Rare Earth Elements in Ordovician Carbonate-Evaporite Rocks of the Central-Eastern Ordos Basin, Central China. [PDF]

ACS Omega
Bao H, Shi B, Ma Z, Wei L, Yan T, Yan W, Zhang Y.   +6 more
europepmc   +1 more source

Hydrocarbon Accumulation Mechanism of Ordovician in the Halahatang Area, Tarim Basin—Evidence From Organic Geochemistry

, 2022
Fei Huo, Xingzhi Wang, Luping Li, Xin Luo, Xiyan Yang, Chen Shen, Liang Li, Yunbo Ruan, Huiwen Huang   +8 more
openalex   +1 more source

Facies Patterns and Conodont Biogeography in Arctic Alaska and the Canadian Arctic Islands: Evidence against Juxtaposition of These Areas during Early Paleozoic Time [PDF]

, 2000
Bradley, D. C., de Freitas, T. A., Dumoulin, J. A., Harris, A. G.   +3 more
core  

The Calvin 28 cryptoexplosive disturbance, Cass County, Michigan: Evidence for impact origin [PDF]

The Calvin 28 cryptoexplosive disturbance is an isolated, nearly circular subsurface structure of Late Ordovician age in southwestern Michigan. The structure is defined by 107 wells, is about 7.24 km in diameter and consists of a central dome, an annular
Milstein, Randall L.
core   +1 more source

Saharan Ordovician Ice Age [PDF]

Science, 1971
openaire   +2 more sources