Results 211 to 220 of about 9,444 (262)

Evolutionary trends of tropical calcareous nannofossils in the late Neogene

Marine Micropaleontology, 1998
Abstract Examination of Middle–Late Miocene sediments recovered during ODP Leg 154 in western equatorial Atlantic has led to identification of evolutionary transitions in some groups of late Neogene calcareous nannofossils. Through analyses of high resolution samples (10-cm sample interval equivalent to average interval of 6 kyr) we were able to ...
Isabella Raffi, Jan Backman
exaly   +4 more sources

Late Neogene motion of the Pacific Plate

Journal of Geophysical Research: Solid Earth, 1989
Oceanic crust between 38°S and 65°S along the Pacific‐Antarctic ridge records a complete history of Neogene Pacific‐Antarctic motion. We have modeled magnetic stages corresponding to portions of isochrons 1, 2, 2A, 3, 3A, 4, and 5 from 17 high‐quality marine magnetic traverses of the ridge to determine the Neogene finite rotation poles for this plate ...
Harbert, W, Cox, A
openaire   +1 more source

Late Neogene Atlantic circulation model

Geologische Rundschau, 1986
A hydrodynamical-numerical model of the general circulation in the Paleo-Atlantic Ocean is applied to the climatological conditions of the period 3.6 to 2.4 m.a. b.p. For three different stages of this interval representing the transition from a warmer to a cooler climate the circulation and the temperature fields are calculated.
Sündermann, Jürgen, Legutke, Stephanie
openaire   +1 more source

Model for late Neogene deformation in Panama

Geology, 1990
Previous workers, mostly using earthquake data, have postulated both discrete faults and complex, diffuse zones for the Caribbean-Nazca plate boundary in Panama. We have better resolved the location and character of late Neogene plate-boundary structures by using satellite imagery and a compilation of existing geologic map data.
Paul Mann, Jeff Corrigan
openaire   +1 more source

Late Neogene continental stages in NW Europe revisited

Earth-Science Reviews, 2007
Pollen records from fluvial deposits in The Netherlands have traditionally been used to establish continental stages for the Neogene in NW Europe. These stages are still widely used across Europe for stratigraphic correlations and palaeoclimatic studies.
Donders, T.H., Kloosterboer-van Hoeve, M.L., Westerhoff, W., Verreussel, R.M.C.H., Lotter, A.F.   +4 more
openaire   +3 more sources

Late Neogene to Quaternary contractional structures in Crete (Greece)

Tectonophysics, 2010
Abstract Based on geological and tectonic investigations carried out along an N–S coast-to-coast transect across central Crete, southern Aegean (Greece), new meso- and macro-structural data mainly collected from Neogene–Quaternary deposits are presented and discussed.
TORTORICI L, CAPUTO R, MONACO, Carmelo Giovanni   +2 more
openaire   +3 more sources

Late Neogene Radiolaria and Mediterranean Paleoenvironments

1985
Although widespread in Mediterranean Miocene sediments, radiolarians occur in only a small proportion of the Pliocene and Quaternary sediments of that region. The major factor responsible for their occurrence seems to be increased biological productivity.
William R. Riedel, M. Jean Westberg-Smith, Alexis Budai   +2 more
openaire   +1 more source

Late neogene history of the Pacific-Caribbean gateway

Journal of South American Earth Sciences, 1989
Abstract Planktic foraminiferal provinces of Caribbean DSDP Hole 502A and East Pacific DSDP Hole 503A have been analyzed and compared with benthic and planktic isotope records, carbonate, hiatus events, and sea level changes. Four major events are evident in the closure history of the Pacific-Caribbean gateway, at 6.2, 4.2, 2.4 and 1.8 Ma. The faunal
G. Keller, C.E. Zenker, S.M. Stone
openaire   +1 more source

The hippo's tale: how the anatomy and physiology of Late Neogene Hexaprotodon shed light on Late Neogene environmental change

Quaternary International, 2004
Abstract Modern hippopotamuses are strongly dependent on permanent water because of the structure and properties of their skin, and because they forage on vegetation located close to watercourses. In the fossil record of Asia, the disappearance of hippopotamids (best represented by Hexaprotodon sivalensis) during the late Neogene and Pleistocene was ...
openaire   +1 more source

Phylogeny of African and Eurasian Elephantoidea of the late Neogene

1996
Abstract It has been nearly 200 years since Johann Blumenbach gave us the first systematic description of an African proboscidean, a right lower second molar, which in 179 7 he referred to as ‘Elephas africanus’ (Osborn 1942, pp. 1192, 1197).
Jon E Kalb, David J Froehlich, Gorden L Bell   +2 more
openaire   +1 more source