Results 81 to 90 of about 41,370 (230)

Osmium Isotope and Highly Siderophile Element Constraints on the Cretaceous/Paleogene Boundary in Western Pacific Pelagic Clay

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract The Cretaceous/Paleogene (K/Pg) Chicxulub impact produced globally synchronous enrichments of highly siderophile elements (HSEs) and a pronounced decline in marine osmium isotope ratios (187Os/188Os), forming a key geochemical marker of the boundary.
Honami Sato   +6 more
wiley   +1 more source

Calcareous nannofossils absolute abundance and accumulation rates from Peniche (late Pliensbachian), Portugal

open access: yes, 2019
Calcareous nannofossils absolute abundance and accumulation rates from Peniche (late Pliensbachian ...
Fabienne Giraud (2840888)   +13 more
core   +1 more source

Calcareous nannofossil communities during Late Triassic Mass Extinction and Early Jurassic recovery in the NW Tethys: evidence from Slovakia, Western Carpathians [PDF]

open access: yesActa Palaeontologica Polonica
The first calcareous nannoplankton extinction and recovery close to the Triassic/Jurassic boundary (TJB) were studied in two Tatra Mountains sections of Kardolína and Furkaska.
Katarína Holcová   +2 more
doaj   +1 more source

(Appendix 4) Calcareous nannofossils in ODP Hole 113-689B

open access: yes, 2012
(Appendix 4) Calcareous nannofossils in ODP Hole 113 ...
Villa, Giuliana   +5 more
core   +1 more source

Calcareous nannofossils absolute abundance and accumulation rates from Punta de Maiata, Italy

open access: yes, 2019
Calcareous nannofossils absolute abundance and accumulation rates from Punta de Maiata ...
Fabienne Giraud (2840888)   +13 more
core   +1 more source

CALCAREOUS NANNOFOSSIL BIOSTRATIGRAPHY OF PALEOCENE TO MIDDLE EOCENE SUCCESSIONS (TERTIARY FLYSCH AUCTT.) OF THE NORTHERN APENNINES

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2015
An accurate biostratigraphic study of the Paleocene-middle Eocene calcareous nannofossils was performed on the turbiditic successions that characterize the Northern Apennines Mt. Caio, Farini d’Olmo, Mt. Sporno and Mt.
RITA CATANZARITI, NICOLA PERILLI
doaj   +1 more source

Calcareous nannofossils absolute abundance and accumulation rates from La Cerruda, Spain

open access: yes, 2019
Calcareous nannofossils absolute abundance and accumulation rates from La Cerruda ...
Fabienne Giraud (2840888)   +13 more
core   +1 more source

Calcareous nannofossils absolute abundance and accumulation rates from ODP Hole 207-1260A and 207-1260B

open access: yes, 2019
Calcareous nannofossils absolute abundance and accumulation rates from ODP Hole 207-1260A and 207 ...
Fabienne Giraud (2840888)   +13 more
core   +1 more source

Early Cretaceous biogeographic and oceanographic synthesis of Leg 123 (off Northwestern Australia) [PDF]

open access: yes, 1992
Biogeographic observations made by Leg 123 shipboard paleontologists for Lower Cretaceous nannofossils, foraminifers, radiolarians, belemnites, and inoceramids are combined in this chapter to evaluate the paleoceanographic history of the northwestern ...
Bown, P.   +13 more
core   +1 more source

Calcareous nannofossils absolute abundance and accumulation rates from Wadi Abu Ghurra, Egypt

open access: yes, 2019
Calcareous nannofossils absolute abundance and accumulation rates from Wadi Abu Ghurra ...
Fabienne Giraud (2840888)   +13 more
core   +1 more source

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