Results 81 to 90 of about 1,541,264 (242)

The rise and fall of a volcanic plateau: Landscape evolution at the fringes of the former Patagonian Ice Sheet, Meseta Chile Chico, central Patagonian Andes

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Understanding Earth‐surface processes along the fringes of large ice sheets is integral to deciphering cold‐region environmental variability and anticipating slope instability under climate change. We investigate the Meseta Chile Chico, a volcanic plateau in the central Patagonian Andes, located at the eastern margin of the former Patagonian ...
Carolina Franco   +8 more
wiley   +1 more source

PALYNOLOGY EVIDENCES OF HITHERTO UNRECOGNISED JURASSIC SEDIMENTATION IN RAJMAHAL BASIN, INDIA

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2004
In Rajmahal Basin the Upper Gondwana (Mesozoic) sequences are represented by the Dubrajpur and Rajmahal Formations. Palynologically, the Dubrajpur Formation is shown to be a time transgressive unit spanning from Early Triassic to Early Cretaceous. Out of
ARCHANA TRIPATHI
doaj   +1 more source

A comparison between dinosaur footprints from the Middle Jurassic of the Isle of Skye, Scotland, UK, and Shell, Wyoming, USA [PDF]

open access: yes, 2008
Measurements of Middle Jurassic tridactyl dinosaur tracks from the Bathonian, Lealt Shale, Valtos Sandstone, Duntulm and Kilmaluag formations of the Isle of Skye, UK, are compared to the same measurements taken for dinosaur footprints from the Bajocian ...
Brett-Surman, M.K., Clark, N.D.L.
core   +1 more source

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

open access: yesIntegrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu   +2 more
wiley   +1 more source

GENESIS OF HYDROCARBONS OF JURASSIC AND PRE-JURASSIC COMPLEXES OF CHISTINNOE FIELD (KOLTOGORSK URENGOY PALEORIFT AREA)

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2019
The genesis of hydrocarbons in the Jurassic and pre-Jurassic complexes of the Chistinnoe group of oil fields located in the Koltogorsk-Urengoy paleorift zone is determined.
Yuriy V. Korzhov   +5 more
doaj   +1 more source

Upper Jurassic Fossils from Ellsworth Land, West Antarctica, and notes on upper Jurassic Biogeography of the South Pacific Region [PDF]

open access: yesNew Zealand Journal of Geology and Geophysics, 1967
Abstract Fossils from Lyon Nunataks (74° 52′ S, 74° 02′ W) are described: Conodicoelites spp., Rotularia sp. indet., indet. pectinacean: cf.
openaire   +1 more source

(Table 1) Spores and pollen in upper Jurassic and lower Cretaceous sediments at DSDP Hole 71-511

open access: yes, 1983
(Table 1) Spores and pollen in upper Jurassic and lower Cretaceous sediments at DSDP Hole 71 ...
Kotova, Ida Z, Ida Z Kotova (8003660)
core   +1 more source

The Early Upper Palaeolithic open‐air site of Friedrichsdorf‐Seulberg, Germany, in the context of the northern central European Aurignacian

open access: yesBoreas, EarlyView.
Our knowledge of the Early Upper Palaeolithic occupation in northern central Europe is very limited, and recent research at the open‐air site of Friedrichsdorf‐Seulberg in Hesse, Germany, provides important new information on the Aurignacian. The site is rather small (26.5 m2) and spatial analysis identified a central hearth with two associated ...
Tilman Böckenförde   +5 more
wiley   +1 more source

Physical modelling of salt structural deformation in the Tajik Basin: insights into the formation of complex fold-and-thrust structures

open access: yesFrontiers in Earth Science
The structure of the Tajik Basin is characterized by a series of NE-trending fold-thrust belts that share a common detachment layer composed of Upper Jurassic evaporite rocks.
Yin Wei   +8 more
doaj   +1 more source

Environmental dynamics and timing of the late Eemian interglacial to the Weichselian pleniglacial at Lichtenberg, Germany: implications for the Oerel and Glinde interstadials

open access: yesBoreas, EarlyView.
The terrestrial sediment archives of northern Germany provide important insights into Late Pleistocene climate variability, but continuous and well‐dated records remain rare. In particular, the age and stratigraphic position of the Oerel and Glinde interstadials within the Early Weichselian to pleniglacial transition remain poorly constrained.
Alexis Badai Samudra   +6 more
wiley   +1 more source

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