Results 131 to 140 of about 6,336 (226)

Palynomorph assemblages from the Upper Ordovician in northern and central

, 2011
Palynological studies have been done to compare the Upper Ordovician strata in various geological units of northern and central Poland (epi-Caledonian Platform, East European Platform, Małopolska Block and Holy Cross Mountains–Łysogóry Fold Zone and ...
Stempień-Sałek, M.
core  

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

Upper Ordovician glacial deposits in southern Jordan

Episodes, 1993
Abdulkader M. Abed, Issa M. Makhlouf, Belal S. Amireh, Basem Khalil   +3 more
openaire   +2 more sources

Recurring marine phosphorus spikes during major palaeozoic mass extinctions and climate change. [PDF]

Nat Commun
Dodd MS, Li C, Zhang Z, Sadekov AY, Desrochers A, Hints O, Yan D, Yang X, George AD, Elrick M, White D, Qie W, Chen B, Merdith AS, Mills BJW.   +14 more
europepmc   +1 more source

Evaluation of potential helium source rocks and helium enrichment factors in coalbed methane in the eastern margin of Ordos basin. [PDF]

Sci Rep
Chen Y, Tao S, Kang R, Gao J, Yang Y, Fang X, Song W, Chen Y, Liu X.   +8 more
europepmc   +1 more source

Dynamic redox-promoted iron and nutrient cycling drove graptolite evolution across the Ordovician-Silurian transition. [PDF]

Sci Adv
Qiu Z, Zou C, Zhang J, Dong A, Kong W, Xiong Y, Wignall PB, Li M, Wang Z, Zhu X, Poulton SW.   +10 more
europepmc   +1 more source

Water hazard prevention technology for confined mining beneath dual extremely thin aquicludes in roof and floor. [PDF]

Sci Rep
Wang G, Yin S, Cao M, Zhong C, Hu S, Yang C, Wu M.   +6 more
europepmc   +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

Clay minerals evidences for cold-warm fluctuations in the Early Silurian. [PDF]

PLoS One
Zhang Z, Zhang J, Wei H, Li H, Guo Y, Zeng C.   +5 more
europepmc   +1 more source