Results 51 to 60 of about 1,129 (194)
The Variable Impact of Heinrich Events on the Benthic Environment of the Porcupine Abyssal Plain
Abstract Heinrich events (HEs) are Pleistocene climate disturbances caused by massive freshwater discharges from the Laurentide Ice Sheet via the Hudson Strait. They appear in marine sediments as layers of ice‐rafted detritus (IRD) and significantly impact the benthic environment.
Olmo Miguez‐Salas +6 more
wiley +1 more source
Piacenzian mixed carbonate‐siliciclastic succession (‘Macco’ unit) deposited on the passive margin of the Tyrrhenian back‐arc basin. Sedimentation was controlled by syn‐sedimentary tectonics, with NW–SE first‐order faults (3–4 km) creating accommodation space and NE–SW second‐order faults (~0.5 km) influencing facies distribution and growth structures.
Marco Brandano +5 more
wiley +1 more source
An assemblage of trace fossils comprising Asteriacites stelliformis, A. quinquefolius, Biformites insolitus, Helminthoidichnites? isp., Lingulichnus isp., Lockeia siliquaria, Palaeophycus tubularis, Planolites isp., Protovirgularia isp.
Singh Birendra P. +5 more
doaj +1 more source
Paleogene unconformity development from ~64 to 22 Ma for the Magallanes‐Austral retroarc foreland basin (MAB). Schematic shows (A) MAB foreland subsidence and basin infilling, (B) onset of cooling and basin inversion as subducting plate shallows, (C) continued foreland uplift, erosion and cooling as the oblique Farallon‐Phoenix ridge subducts beneath ...
Rebecca A. VanderLeest +4 more
wiley +1 more source
The Celliforma ichnofacies in calcareous paleosols: An example from the late Miocene Cerro Azul Formation, La Pampa, Argentina [PDF]
Invertebrate trace fossils from the late Miocene Cerro Azul Formation (La Pampa, Argentina) are described and compared with known paleosol ichnofacies. The formation is a loess succession punctuated by numerous calcareous paleosols.
Sostillo, Renata +7 more
core +1 more source
During the Late Permian, the rise of the Gondwanides Belt trapped marine waters, giving birth to a vast megalake. This lake shifted between overfilled, balanced‐fill and underfilled stages that are recorded by high‐frequency accommodation changes, while meteorological seiches shaped the sedimentary dynamic and produced heterolithic beds.
B. Christofoletti +6 more
wiley +1 more source
Neoichnology of a Lake Margin in the Canadian Aspen Parkland Region, Cooking Lake, Alberta
Neoichnology provides insights essential for interpreting trace fossils in the rock record. Despite the wealth of studies conducted in marine nearshore environments, non-marine environments including lacustrine settings have received comparably little ...
Ryusuke Kimitsuki +6 more
doaj +1 more source
New findings of ichnofossils in the Bagovskaya formation (Lower Jurassic) of the Western Caucasus
An ichnofossil association is established in the shales of the Bagovskaya Formation (Lower-Middle Toarcian, Lower Jurassic) in the southern periphery of the town of Guzeripl’ (Republic of Adygeya).
P. P. Zayats +2 more
doaj +1 more source
ABSTRACT In‐depth ichnological and sedimentological analyses of the Cenomanian–Turonian boundary Oceanic Anoxic Event (OAE2) from the Western Interior Seaway of west‐central Alberta reveal a persistent physico‐chemically stressed setting. The interval is characterised by a dominantly diminutive and diminished ichnological assemblage, with familiar ...
Sara K. Biddle, Murray K. Gingras
wiley +1 more source
JURASSIC TRACE FOSSIL LOCALITIES OF ADYGEYA (RUSSIA): NEW GEOHERITAGE UNDER ANTHROPOGENIC PRESSURE
Geological heritage, and generally geoheritage, needs identification in the regions known for the modern progress in geological research, and the risks of its damage have to be documented.
Dmitry A. Ruban
doaj +3 more sources

