Results 71 to 80 of about 560 (178)

Contemporary research tasks and challenges for Quaternary Sciences

Geographia Polonica
The article briefly characterises the Quaternary, defines the criteria for its identification within the stratigraphic table and discusses the principles of its internal division.
Zdzisław Jary, Mirosław Błaszkiewicz
doaj   +1 more source

Planktonic foraminiferal biostratigraphy of the Miocene Arakawa Group in central Japan

Revista Mexicana de Ciencias Geológicas, 2018
We examined a planktonic foraminiferal biostratigraphy in the middle to upper Miocene Arakawa Group in central Japan. Chronostratigraphy has been already established for this sequence based on K-Ar ages of intercalated volcaniclastic layers. The studied
Hiroki Hayashi, Masaki Takahashi
doaj  

Proposals to improve the Correlation chronostratigraphy scheme of early precambrian of Ukrainian shield

Мінеральні ресурси України, 2016
The article deals with the major disadvantages of different authors offers on improving existing “Correlation Chronostratigraphy scheme of Early Precambrian of Ukrainian Shield”.
M. M. Kostenko
doaj  

Astronomical calibration of the middle Cambrian in Baltica: global carbon cycle synchronization and climate dynamics. [PDF]

Nat Commun
Jamart V, Pas D, Hinnov LA, Spangenberg JE, Adatte T, Nielsen AT, Schovsbo NH, Thibault N, Arts M, Daley AC.   +9 more
europepmc   +2 more sources

Conodonts in Ordovician Chronostratigraphy

, 2015
The great importance of conodonts in Ordovician chronostratigraphy is shown by the fact that conodonts are used for the definition of two of the seven global stages, and seven of the 18 stage slices, now recognized within this system.
Bergström, Stig M., FERRETTI, Annalisa
openaire   +1 more source

Synchronizing climate-carbon cycle heartbeats in the Phanerozoic vegetated icehouses. [PDF]

Nat Commun
Fang Q, Wu H, Montañez IP, Shen SZ, Zeeden C, Wang X, Zhang S, De Vleeschouwer D.   +7 more
europepmc   +1 more source

High precision CA-ID-TIMS U-Pb zircon age for the "Dueling Dinosaurs" locality, with implications for regional correlation, basal age and duration of the Hell Creek Formation, Montana. [PDF]

PLoS One
Roberts EM, Hendrix MS, Ramezani J, Clyde WC, Zippi P, Hodgson S, Yuleridge V, Zanno LE.   +7 more
europepmc   +1 more source

Tracking 'transitional' diadectomorphs in the earliest Permian of equatorial Pangea. [PDF]

PeerJ, 2023
Calábková G, Madzia D, Nosek V, Ivanov M.   +3 more
europepmc   +1 more source

Phylogeny and Historical Biogeography of the Scorpion Genus <i>Hottentotta</i> Birula, 1908 (Buthidae) in the Iranian Plateau and the Zagros Mountains. [PDF]

Insects
Mirshamsi O, Amiri M, Aliabadian M, Prendini L.   +3 more
europepmc   +1 more source

Abrupt conclusion of the late Miocene-early Pliocene biogenic bloom at 4.6-4.4 Ma. [PDF]

Nat Commun, 2022
Karatsolis B-, Lougheed BC, De Vleeschouwer D, Henderiks J.   +3 more
europepmc   +1 more source