Results 51 to 60 of about 3,655,156 (367)

Late Miocene onset of the modern Antarctic Circumpolar Current

open access: yesNature Geoscience
The Antarctic Circumpolar Current plays a pivotal role in global climate through its strong influence on the global overturning circulation, ocean heat and CO2 uptake.
D. Evangelinos   +20 more
semanticscholar   +1 more source

Mediterranean isolation preconditioning the Earth System for late Miocene climate cooling

open access: yesScientific Reports, 2019
A global Neogene cooling trend culminated ~7 million years ago with the onset of Greenland glaciation. Increased ocean-atmosphere interaction and low- to high-latitude circulation are thought to be key factors in reorganizing late Miocene global ...
W. Capella   +8 more
semanticscholar   +1 more source

Seismic stratigraphy and development of a modern isolated carbonate platform (Xuande Atoll) in the South China Sea

open access: yesFrontiers in Earth Science, 2023
Xuande Atoll is an isolated carbonate platform that has developed since the early Miocene. This study conducted high-resolution seismic surveys and shallow drilling to understand its internal structure and development.
Y. Liu   +16 more
doaj   +1 more source

A New Late Miocene Odobenid (Mammalia: Carnivora) from Hokkaido, Japan Suggests Rapid Diversification of Basal Miocene Odobenids. [PDF]

open access: yesPLoS ONE, 2015
The modern walrus, Odobenus rosmarus, is specialized and only extant member of the family Odobenidae. They were much more diversified in the past, and at least 16 genera and 20 species of fossil walruses have been known.
Yoshihiro Tanaka, Naoki Kohno
doaj   +1 more source

Ecological and hydroclimate responses to strengthening of the Hadley circulation in South America during the Late Miocene cooling

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance This paper analyzes the Late Miocene continental record of hydroclimate from the central Andes and subsequent ecological response to climatic change during this interval.
B. Carrapa, Mark T. Clementz, R. Feng
semanticscholar   +1 more source

Dominant 100,000-year precipitation cyclicity in a late Miocene lake from northeast Tibet

open access: yesScience Advances, 2017
Paleoclimatic records reveal >6–million year earlier onset of dominant 100–thousand year eccentricity cycles. East Asian summer monsoon (EASM) precipitation received by northern China over the past 800 thousand years (ky) is characterized by dominant 100-
J. Nie   +9 more
semanticscholar   +1 more source

Grassland fire ecology has roots in the late Miocene

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance Fire is crucial to maintaining modern subtropical grasslands, yet the geologic and ecological history of this association is not well constrained.
A. Karp, A. Behrensmeyer, K. Freeman
semanticscholar   +1 more source

Late Miocene to late Pleistocene geomagnetic secular variation at high northern latitudes [PDF]

open access: yesGeophysical Journal International, 2020
SUMMARYWe report a palaeomagnetic study of Icelandic lavas of late Miocene to late Pliocene age to test the geocentric axial dipole hypothesis at high northern latitudes. Cores were sampled from 125 sites in the Fljótsdalur valley in eastern Iceland, and hand samples were taken for 17 new incremental heating 40Ar/39Ar age determinations. 96 per cent of
Døssing, Arne   +4 more
openaire   +7 more sources

The relationship between form and function of the carnivore mandible

open access: yesThe Anatomical Record, EarlyView.
Abstract Dietary morphology diversified extensively in Carnivoraformes (living Carnivora and their stem relatives) during the Cenozoic (the last 66 million years) as they evolved to capture, handle, and process new animal and plant diets. We used 3D geometric morphometrics, mechanical advantage, and finite element analysis to test the evolutionary ...
Charles J. Salcido, P. David Polly
wiley   +1 more source

Contribution of the late Miocene mammals from Calabria and Sicily to the palaeogeography of the central Mediterranean

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
During Miocene, the paleogeography of the central Mediterranean area underwent significant modifications under control of Plate Tectonics. The area here considered occupies a southern position, rougly coincident with the Calabria-Peloritan Arc (CPA ...
Antonella Cinzia Marra
doaj   +1 more source

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