Results 191 to 200 of about 10,064 (318)

Use of LiDAR to derive a new model of glacial hydro‐dynamic events shaping southern Ontario landscapes, Canada

open access: yesBoreas, EarlyView.
High‐resolution LiDAR data with field validation of inferred southern Ontario ice stream terrains indicate that steady‐state ice streaming is difficult to reconcile with our observations. Rather, these new observations show strong evidence of significant fluvial scouring across the area in which meltwater sheet flow overtopped the landscape.
David R. Sharpe, Chris C. Smart
wiley   +1 more source

Extremely rapid, yet noncatastrophic, preservation of the flattened-feathered and 3D dinosaurs of the Early Cretaceous of China. [PDF]

open access: yesProc Natl Acad Sci U S A
MacLennan SA   +9 more
europepmc   +1 more source

Living on the edge: Pleistocene ice‐free refugia and collared lemming (Dicrostonyx sp.) in the North American High Arctic

open access: yesBoreas, EarlyView.
Comparing the morphological variation of North American collared lemming with climatic and geographic features, as well as genetic insight and the ice sheet extend, indicate the strong geographic structure underlying the morphological diversity of the genus, that might be linked with a local Pleistocene survival in the High Arctic.
Louis Arbez   +4 more
wiley   +1 more source

Evolution of carbonate platforms in the northeast Red Sea during the last 23 million years. [PDF]

open access: yesSci Rep
Pensa T   +5 more
europepmc   +1 more source

Morphology and sedimentology of murtooized terrain on the southern Fraser Plateau, British Columbia, Canada

open access: yesBoreas, EarlyView.
Recent public releases of Light Detection and Ranging (LiDAR) data in south central British Columbia (BC), Canada have revealed several landforms resembling ‘murtoos’, previously identified across portions of Scandinavia. In this study, we investigate the morphology and sedimentology of these landforms, the first report of their kind associated with ...
Alexander D. Sodeman, Tracy A. Brennand
wiley   +1 more source

A new Early Jurassic dinosaur represents the earliest-diverging and oldest sauropodomorph of East Asia. [PDF]

open access: yesSci Rep
Wang YM   +8 more
europepmc   +1 more source

Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland

open access: yesBoreas, EarlyView.
Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells   +4 more
wiley   +1 more source

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