Results 111 to 120 of about 7,983 (211)

A Reassessment of the Chronostratigraphy of Late Miocene C-3-C-4 Transitions [PDF]

open access: yes, 2020
Curry W. B.   +14 more
core   +2 more sources

Evidence of volcanic ash at a K-T boundary section: Ocean drilling program hole 690 C, Maud Rise, Weddell Sea off East Antarctica [PDF]

open access: yes
Rare vitric volcanogenic ash but more abundant clay minerals considered volcanogenic in origin are associated with an expanded and essentially complete K-T boundary sequence from Ocean Drilling Project (ODP) Hole 690 C on Maud Rise in the Weddell Sea off
Barker, P. F.   +9 more
core   +1 more source

Late Cambrian geomagnetic instability after the onset of inner core nucleation. [PDF]

open access: yesNat Commun, 2023
Li YX   +7 more
europepmc   +1 more source

Low dinosaur biodiversity in central China 2 million years prior to the end-Cretaceous mass extinction. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Han F   +16 more
europepmc   +1 more source

Deccan volcanism at the Cretaceous-Tertiary boundary [PDF]

open access: yes
The accuracy with which one can claim that Deccan trap volcanism occurred at the Cretaceous-Tertiary boundary (KTB) over a very short time interval is of key importance in deciding whether a volcanic origin of the KTB events should be taken seriously. In
Besse, J., Courtillot, V., Vandamme, D.
core   +1 more source

Pulsed rise and growth of the Tibetan Plateau to its northern margin since ca. 30 Ma. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Wang W   +9 more
europepmc   +1 more source

Middle-Upper Miocene stratigraphy of the Taman Peninsula, Eastern Paratethys

open access: yesOpen Geosciences, 2012
Radionova Eleonora   +7 more
doaj   +1 more source

Patterns of megafloral change across the Cretaceous-Tertiary boundary in the Northern Great Plains and Rocky Mountains [PDF]

open access: yes
The spatial and temporal distribution of vegetation in the terminal Cretaceous of Western Interior North America was a complex mosaic resulting from the interaction of factors including a shifting coastline, tectonic activity, a mild, possibly ...
Hickey, Leo J., Johnson, Kirk R.
core   +1 more source

Ages on weathered Plio-Pleistocene tephra sequences, western North Island, New Zealand [PDF]

open access: yes, 2001
Using the zircon fission-track method, we have obtained five ages on members of two strongly-weathered silicic, Pliocene-Pleistocene tephra sequences, the Kauroa and Hamilton Ash formations, in western North Island, New Zealand.
Briggs, Roger M.   +5 more
core   +1 more source

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