Results 71 to 80 of about 2,716 (159)

Orbital-Scale Modulation of the Middle Miocene Third-Order Eustatic Sequences from the Northern South China Sea

open access: yesJournal of Marine Science and Engineering
The Miocene Hanjiang Formation (HJF) is a remarkable exploration target in the Pearl River Mouth Basin (PRMB). However, challenges such as bias in current sequence stratigraphic schemes, limitations in high-resolution stratigraphic schemes, and ...
Haichun Xu   +4 more
doaj   +1 more source

On the duration of the Paleocene‐Eocene thermal maximum (PETM)

open access: yesGeochemistry, Geophysics, Geosystems, 2007
The Paleocene‐Eocene thermal maximum (PETM) is one of the best known examples of a transient climate perturbation, associated with a brief, but intense, interval of global warming and a massive perturbation of the global carbon cycle from injection of ...
Ursula Röhl   +3 more
doaj   +1 more source

MEDITERRANEAN PLIOCENE BIOCHRONOLOGY: AN HIGH RESOLUTION RECORD BASED ON QUANTITATIVE PLANKTONIC FORAMINIFERA DISTRIBUTION

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
Quantitative analysis of planktonic foraminiferal assemblages from Mediterranean Pliocene sections evidenced several fluctuations in abundance which for 4 taxonomic units (Globorotalia inflata group, Globigerinoides ruber, Globigerinoides obliquus and ...
RODOLFO SPROVIERI
doaj   +1 more source

History of the Middle Berriasian transgression on the Jura carbonate platform: revealed by high-resolution sequence- and cyclostratigraphy (Switzerland and France) [PDF]

open access: yes, 2018
The Middle Berriasian deposits of the Jura platform in Switzerland and France have already been well studied in terms of high-resolution sequence stratigraphy and different orders of depositional sequences (large-, medium-, and small-scale) have been ...
Strasser, André, Tresch, Jonas
core  

Silicification and organic matter preservation in the Anisian Muschelkalk: Implications for the basin dynamics of the central European Muschelkalk Sea [PDF]

open access: yes, 2017
Anisian Muschelkalk carbonates of the southern Germanic Basin containing silicified ooidal grainstone are interpreted as evidence of changing pH conditions triggered by increased bioproductivity (marine phytoplankton) and terrestrial input of plant ...
Costin, Gelu   +2 more
core   +1 more source

Use of orbital cycles to improve magnetostratigraphic dating of drill core SG-1 from the Qaidam Basin (NE Tibetan Plateau) spanning nearly the last ~2.8 Ma [PDF]

open access: yes, 2013
HKT-ISTP 2013 ...
Appel, Erwin   +6 more
core  

Integrated bio- and cyclostratigraphy of Middle Triassic (Anisian) ramp deposits, NW Bulgaria

open access: yesGeologica Carpathica, 2019
A cyclostratigraphic interpretation of peritidal to shallow-marine ramp deposits of the early Middle Triassic (Anisian) Opletnya Member exposed in outcrops along the Iskar River gorge, NW Bulgaria, is presented.
Ajdanlijsky George   +2 more
doaj   +1 more source

Allogenic and autogenic processes combined in the formation of shallow-water carbonate sequences (Middle Berriasian, Swiss and French Jura Mountains) [PDF]

open access: yes, 2018
Sediment production and accumulation on shallow carbonate platforms are controlled by allogenic, externally controlled processes (such as sea level, climate, and/or platform-wide subsidence patterns) as well as by autogenic factors that are inherent to ...
Strasser, André, Tresch, Jonas
core  

Synchrony between the Central Atlantic magmatic province and the Triassic-Jurassic mass-extinction event? [PDF]

open access: yes, 2007
We present new data and a synthesis of cyclostratigraphic, lithostratigraphic, biostratigraphic, and published magnetostratigraphic and basalt geochemical data from eastern North America and Morocco in an attempt to clarify the temporal relationship ...
Whiteside, Jessica H.   +4 more
core   +2 more sources

Вулиця Басейна у Києві [PDF]

open access: yes, 2011
Challenges and pitfalls for developing age models for long lacustrine sedimentary records are discussed and a comparison is made between radiocarbon dating, visual curve matching, and frequency analysis in the depth domain in combination with ...
Groot, Mirella H. M.   +4 more
core   +2 more sources

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