Results 81 to 90 of about 733,308 (198)

The Effect of the Mobile Learning Method on the Teaching of Milankovitch Cycles

open access: yes, 2017
:The aim of this study is to determine the effect of the subject of Milankovitch cycles which is addressed based on the mobile learning method on the success of students and the retentionof their knowledge.
Gürbüzoğlu Yalmancı, Sibel
core   +1 more source

Interglacials, Milankovitch Cycles, Solar Activity, and Carbon Dioxide [PDF]

open access: yesJournal of Climatology, 2014
The existing understanding of interglacial periods is that they are initiated by Milankovitch cycles enhanced by rising atmospheric carbon dioxide concentrations. During interglacials, global temperature is also believed to be primarily controlled by carbon dioxide concentrations, modulated by internal processes such as the Pacific Decadal Oscillation
openaire   +1 more source

Research Status and Development Direction of Well Log Cyclostratigraphy

open access: yesCejing jishu
Well log cyclostratigraphy has become the foundation for studying many key scientific issues in the field of geosciences by identifying, extracting, and interpreting astronomical cycles recorded by geophysical logs. This paper analyzes the driving forces
PENG Cheng, ZOU Changchun, CAO Jinyu
doaj   +1 more source

Middle to upper Devonian (givetian and frasnian) shallow-water carbonates of Western Europe: fades analysis and cyclicity [PDF]

open access: yes, 1997
The Middle and Upper Devonian (Givetian-Frasnian) shallow-water carbonate facies of western Europe were deposited as a large-scale transgressive succession over continental facies of the Old Red Continent.
Garland, Joanna
core  

Late Quaternary record of 100 ka depositional cycles on the Larache shelf (NW Morocco)

open access: yesOpen Geosciences
This study examines the stratigraphic architecture of the Upper Pleistocene on the Larache margin, NW Moroccan Atlantic, focusing on the impact of glacio-eustatic cycles. Utilizing seismic analysis, we identified four major seismic sequences (UD, UC, UB,
Raki Amine, Jemily Linda, Mhammdi Nadia
doaj   +1 more source

Petrological characteristics and shale oil enrichment of lacustrine fine-grained sedimentary system: A case study of organic-rich shale in first member of Cretaceous Qingshankou Formation in Gulong Sag, Songliao Basin, NE China

open access: yesPetroleum Exploration and Development, 2018
Taking organic-rich shale in the first member of Cretaceous Qingshankou Formation in the Gulong Sag, northern Songliao Basin as an example, this study examined the lithofacies classification, petrological characteristics, pore size distribution and their
Bo LIU   +6 more
doaj   +1 more source

Lateral discrepancies of cycle patterns in the Latemàr, Triassic, Italian Dolomites [PDF]

open access: yes
The well-known cyclic carbonate succession of the Middle Triassic Latemàr Massif in the Italian Dolomites reveals significant lateral variability in cycle numbers in platform-interior strata.
Peterhänsel, A., Egenhoff, S. O.
core  

Milankovitch cycles in an equatorial delta from the Miocene of Borneo

open access: yesEarth and Planetary Science Letters, 2017
The factors controlling sedimentary cyclicity in deltaic systems are a subject of intense debate, and more research, in different deltaic environments and time periods, is needed to better understand the possible mechanisms. Offshore and Pleistocene case studies are more common than proximal and more ancient, greenhouse-climate examples.
Nathan Marshall   +3 more
openaire   +5 more sources

Influence of precessional Milankovitch cycles on Eocene turbiditic deposits in Gorrondatxe [PDF]

open access: yes, 2013
El estudio estratigráfico y sedimentológico realizado en la sección de Gorrondatxe (Getxo, Bizkaia), ha demostrado que los cambios climáticos relacionados con los ciclos de precesión de los equinoccios (ciclos de Milankovitch de 21 kiloaños de ...
Martínez Braceras, Naroa, Payros, Aitor
core  

Fifth-order cyclicity and organic matter contents relationship (Lower Eocene, Pyrenees) [PDF]

open access: yes, 2007
The Upper Limestone Member of the Corones Formation of the Spanish Pyrenees consists of various units (Lower and the Upper Foraminifera Units, Shale Unit, Cherty-ostracode Unit, Ostracode Unit and Chara-ostracode Unit) and offers strong facies and ...
Permanyer Bastardas, Albert   +12 more
core   +1 more source

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