Results 61 to 70 of about 12,744 (240)
Insights From New Age Constraints and Sediment Volumes From the Austrian Northern Alpine Foreland Basin [PDF]
, 2019 Detailed characterization of variations in sediment architecture, flux, and transport processes in peri-orogenic basins offers insights into external climatic or tectonic forcings.
Auer, Gerald +4 more
core +1 more source
Rivista Italiana di Paleontologia e Stratigrafia, 2002 The relative position of 30 main bioevents pertaining to calcareous nannofossils and planktonic foraminifera was identified in the time interval between 13.75 Ma and 10.50 Ma, based on the quantitative study of the those microfossils in three ...
RODOLFO SPROVIERI +9 more
doaj +1 more source
Site 502: Colombia Basin, Western Caribbean [PDF]
, 1982 Our specific objective at Site 502 was to recover an undisturbed, complete section that could be used as a Neogene and Quaternary reference section. A complete record such as this would allow intercorrelations between (1) paleomagnetic stratigraphy, (2 ...
Adelseck, Charles +13 more
core +2 more sources
The calcareous nannofossil Prinsiosphaera achieved rock-forming abundances in the latest Triassic of western Tethys: consequences for the δ13C of bulk carbonate [PDF]
Biogeosciences, 2013 The onset of pelagic biomineralization was a milestone in the history of the long-term inorganic carbon cycle: as soon as calcareous nannofossils became major limestone producers, the pH and supersaturation state of the global ocean were stabilized (the ...
N. Preto +4 more
doaj +1 more source
The Depositional Record, Volume 12, Issue 1, February 2026.Cluster‐based chemostratigraphy using XRF‐CS enables high‐resolution correlation of event deposits across contrasting depositional settings in the Japan Trench. This approach reveals previously unrecognised events and compositional heterogeneity, offering new insights into sediment provenance and earthquake‐triggered deposition, with implications for ...
Jyh‐Jaan Steven Huang +4 more
wiley +1 more source
Integrated stratigraphy of the Waitakian-Otaian Stage boundary stratotype, Early Miocene, New Zealand [PDF]
, 1999 The base of the type section of the Otaian Stage at Bluecliffs, South Canterbury, is recognised as the stratotype for the boundary between the Waitakian and Otaian Stages.
Allan R. S. +40 more
core +2 more sources
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.Abstract During the Eocene‐Oligocene Transition (ca. 34 Ma), the Earth underwent a dramatic decline in atmospheric CO2, global cooling, a deepening of the carbonate compensation depth (CCD), and the formation of a permanent ice sheet on Antarctica. The expansion of Antarctic glaciers eroded the underlying bedrock and increased the weathering flux to ...
Adam D. Sproson +6 more
wiley +1 more source
Biostratigraphy of Gurpi Formation in Samand anticline (Lurestan province) Based on calcareous nannofossils [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2017 The present study is an attempt to biostratigraphically classify the rocks of Gurpi Formation at Samand Anticline with the help of calcareous nannofossils. The succession measures 197 meters in thickness and consists of shale, marl and marly limestone. A
samira shahriyary +2 more
doaj +1 more source
, 2002 Site 1220 (10°10.600´N, 142°45.503´W; 5218 meters below sea level (mbsl); Fig. F1) forms a southerly component of the 56-Ma transect drilled during Leg 199.
Backman, J. +27 more
core +1 more source
Biostratigraphy and paleoecology of the Lower Cretaceous sediments in the Outer Western Carpathians (Silesian Unit, Czech Republic) [PDF]
, 2011 Almost black shale filling fissures in the Štramberk Limestone belonging to the Silesian Unit, Outer Western Carpathians contain prolific and poorly to moderately well preserved spores, pollen, organic-walled dinoflagellate cysts, foraminifers, and ...
Hradecká, Lenka +3 more
core +1 more source