Results 91 to 100 of about 7,297 (224)

Evolution of the Ordovician top boundary and its relationship to reservoirs' development, Ordos Basin

Petroleum Exploration and Development, 2012
The control of structural evolution on the development of different types of Ordovician reservoirs in the Ordos Basin is discussed by studying the evolution of the Ordovician top boundary in geological times, and the mechanisms of formation and evolution
Xinquan RAN, Jinhua FU, Xinshan WEI, Junfeng REN, Liuyi SUN, Hongping BAO   +5 more
doaj   +1 more source

Sr, C, and O isotope geochemistry of Ordovician brachiopods: a major isotopic event around the middle-late Ordovician transition

, 2003
Here we present Sr, C, and O isotope curves for Ordovician marine calcite based on analyses of 206 calcitic brachiopods from 10 localities worldwide. These are the first Ordovician-wide isotope curves that can be placed within the newly emerging global ...
Li, Rong-Yu, Meidla, Tõnu, Shields, Graham A., Rong, Jia-Yu, Carden, Giles A.F., Veizer, Jan   +5 more
core   +1 more source

Characteristics, distribution, and origin of ferruginous deposits within the Late Ordovician glaciogenic setting of Arabia. [PDF]

Sci Rep, 2023
Alqubalee A, Salisu AM, Bello AM, Al-Hussaini A, Al-Ramadan K.   +4 more
europepmc   +1 more source

Detrital zircon geochronology of the Grenville/Llano foreland and basal Sauk Sequence in west Texas, USA

, 2014
We thank the University of St. Andrews and Natural Environment Research Council (NERC grant NE/J021822/1) for funding support. The NERC Isotope Geosciences Facilities Steering Committee (IP-1326-0512) provided additional funding support.U-Pb detrital ...
Roberts, Nick M.W., Spencer, Christopher, Roberts, N.M.W., Prave, Anthony R., Cawood, P., Roberts, N.M., Spencer, C.J., Prave, A.R., Cawood, Peter A., Spencer, Christopher J., Cawood, P.A.   +10 more
core   +1 more source

WARM TO COLD WATER CARBONATE FORMATION DURING THE ORDOVICIAN AND THE JURASSIC: EXAMPLES FROM IRAN, AUSTRALIA, AND ENGLAND [PDF]

Journal of Sciences, Islamic Republic of Iran, 2003
Isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the Ordovician and the Jurassic.
doaj  

Hydrocarbon fluid evolution and accumulation process in ultradeep reservoirs of the northern Fuman Oilfield, Tarim Basin

Frontiers in Earth Science
Marine deep Ordovician reservoirs are significantly controlled by strike-slip fault zones, which govern reservoir fluid evolution during various activity periods.
Rujun Wang, Yingtao Zhang, Fangfang Chen, Mengqin Li, Zhigang Wen, Zhigang Wen, Xiao Luo, Zhiwen Ding, Bing Li, Yifan Xue, Yifan Xue   +10 more
doaj   +1 more source

Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction. [PDF]

Sci Adv, 2022
Kozik NP, Young SA, Newby SM, Liu M, Chen D, Hammarlund EU, Bond DPG, Them TR, Owens JD.   +8 more
europepmc   +1 more source

Halkieriid-like animals in the Late Ordovician?

, 2017
The recent description of the Tremadocian halkieriid-like stem aculiferan, Calvapilosa kroegeri , could shed new light on some enigmatic Ordovician fossils known only by their disarticulated plates.
openaire   +1 more source

Chapter 24 Late Ordovician zooplankton maps and the climate of the Early Palaeozoic Icehouse

, 2016
Chitinozoans and graptolites are the main components of preserved Ordovician zooplankton. As with much of the modern plankton, the ‘first-order’ species distributions of Ordovician plankton reflect water masses defined on the basis ...
Florentin Paris (2842262), Koen Sabbe (144012), Jan A. Zalasiewicz (144016), Howard A. Armstrong (2842265), Thijs R. A. Vandenbroucke (144006), Mark Williams (62100)   +5 more
core   +1 more source

Different controls on the Hg spikes linked the two pulses of the Late Ordovician mass extinction in South China. [PDF]

Sci Rep, 2022
Qiu Z, Wei H, Tian L, Corso JD, Zhang J, Zou C.   +5 more
europepmc   +1 more source