Results 141 to 150 of about 154,283 (378)

Evidence for an impact-induced biosphere from the δ34S signature of sulphides in the Rochechouart impact structure, France [PDF]

open access: yes, 2017
The highly eroded 23 km diameter Rochechouart impact structure, France, has extensive evidence for post-impact hydrothermal alteration and sulphide mineralization.
Boyce, A.J.   +4 more
core   +1 more source

The impact of the structural framework of the North German Basin on Pleistocene tunnel‐valley formation

open access: yesBoreas, EarlyView.
This study contains a comprehensive regional analysis of the orientations of tunnel valleys, faults and salt structures in the North German Basin, aiming to identify correlations that might indicate a structural control on tunnel‐valley formation. A structural control on tunnel‐valley formation has been repeatedly postulated and correlations have been ...
Jörg Lang   +5 more
wiley   +1 more source

Deciphering the evolutionary history of early Mesozoic fossil corals [PDF]

open access: yesActa Palaeontologica Polonica
The morphology of stony corals (Scleractinia) remains the only means to reconstruct the most inclusive evolutionary history of the clade comprising both extant and extinct species.
Bernard Lathuilière   +2 more
doaj   +1 more source

A new horned and long-necked herbivorous stem-archosaur from the Middle Triassic of India

open access: yesScientific Reports, 2017
The early evolution of archosauromorphs (bird- and crocodile-line archosaurs and stem-archosaurs) represents an important case of adaptive radiation that occurred in the aftermath of the Permo-Triassic mass extinction.
S. Sengupta   +2 more
semanticscholar   +1 more source

Comments on ‘Late Middle Pleistocene Wolstonian Stage (MIS 6) glaciation in lowland Britain and its North Sea regional equivalents – a review’

open access: yesBoreas, EarlyView.
Divergent views debated over the past 20 years on the Wolstonian depositional record of Fenland and the Peterborough area have centred on whether there is evidence of a single (middle or late) glaciation or of both a middle and a late glaciation. A recent review promoted a single late Wolstonian glaciation, despite there being incontrovertible evidence
Harry E. Langford
wiley   +1 more source

On the Triassic reptile Hallopus victor, Marsh [PDF]

open access: green, 1908
Friedrich von Huene, R. S. Lull
openalex   +1 more source

The role of shallow banks and marine ice domes in marine‐based ice‐sheet deglaciation

open access: yesBoreas, EarlyView.
Marine‐based ice sheets are susceptible to collapse and faster retreat than their land‐terminating counterparts. One of the key factors contributing to the relative stability of marine‐terminating ice sheets is the presence of shallow bathymetric banks and islands acting as pinning points for the ice sheet.
Bartosz Kurjanski   +2 more
wiley   +1 more source

Main controlling factors and exploration direction of gas reservoir in Jialingjiang Formation, Sichuan Basin

open access: yesShiyou shiyan dizhi
The Jialingjiang Formation is a traditional stratum for natural gas exploration in the Sichuan Basin, and in recent years it has been continuously discovered in northern and southwestern Sichuan, but there are still large areas of exploration blanks in ...
Longlong LI   +9 more
doaj   +1 more source

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