Results 321 to 330 of about 254,715 (432)

First record of Mesoscytina (Hemiptera, Scytinopteroidea, Scytinopteridae) from the Middle Triassic Tongchuan Entomofauna of China. [PDF]

Zookeys
Zhang Q, Du X, Zhu X, Zhang H.
europepmc   +1 more source

Responses of shallow subarctic ponds to a warming climate in the Anthropocene: a palaeolimnological perspective from the Hudson Bay Lowlands, Canada

Boreas, EarlyView.
We show that the biological assemblage of two lakes in the Hudson Bay Lowlands experienced shifts in their biological assemblages in a very similar period as inferred hydrological change; yet, we also show that both ponds also had a clear anthropogenic warming signal as demonstrated by similar results in a chironomid‐based palaeo‐temperature ...
Connor Nishikawa, Andrew S. Medeiros, Jennifer Eamer, Brent B. Wolfe   +3 more
wiley   +1 more source

Collision Timing and Provenance Shifts from the Late Oligocene to Middle Miocene in the Southeasternmost Zagros Orogen. [PDF]

Sci Rep
GholamiZadeh P, Wan B, Garzanti E, Hu X, Esmaeili R, Ebrahimi M.   +5 more
europepmc   +1 more source

La stratigraphie

, 2022
openaire   +2 more sources

Volcanically induced glacier collapses in southern Jan Mayen (Sør‐Jan), Norway

Boreas, EarlyView.
A formerly unknown glacier totally covered with tephra was found in an area of Jan Mayen where no Holocene glaciation was known. This glacier and three others in the same area melted abruptly creating jökulhlaups due to volcanic activity impacting the glacier catchments at different times in the Holocene.
Eiliv Larsen, Astrid Lyså, Asbjørn Hiksdal, Ulysses N. Ninnemann, Stefan Wastegård   +4 more
wiley   +1 more source

Wave ripples formed in ancient, ice-free lakes in Gale crater, Mars. [PDF]

Sci Adv
Mondro CA, Fedo CM, Grotzinger JP, Lamb MP, Gupta S, Dietrich WE, Banham S, Weitz CM, Gasda P, Edgar LA, Rubin D, Bryk AB, Kite ES, Caravaca G, Schieber J, Vasavada AR.   +15 more
europepmc   +1 more source

Increased aeolian activity linked to Neoglacial cooling and glacier advance in southern Greenland

Boreas, EarlyView.
Intense aeolian activity observed in the Igaliku Kujalleq records in S Greenland is not related to Norse activities. Instead, we suggest that changes in the North Atlantic atmospheric circulation pattern combined with Neoglacial glacier advances led to increased katabatic wind activity and triggered increased aeolian activity from large outwash plains.
Nicolaj K. Larsen, Marie‐Louise Siggaard‐Andersen, Jan‐Pieter Buylaert, Andrew S. Murray, Jesper Olsen, Anthony Ruter, Kristian K. Kjeldsen, Anders A. Bjørk, Naja Mikkelsen, Kurt H. Kjær   +9 more
wiley   +1 more source

Reply to Huang et al.: Debunking the Sangdanlin myth. [PDF]

Proc Natl Acad Sci U S A
Meng J, Gilder SA, Tan X, Li X, Li Y, Luo H, Suzuki N, Wang Z, Chi Y, Zhang C, Wang C.   +10 more
europepmc   +1 more source

Ribbed moraines formed during deglaciation of the Icelandic Ice Sheet: implications for ice‐stream dynamics

Boreas, EarlyView.
This study focuses on the deglaciation dynamics in the northeastern sector of the Iceland Ice Sheet, by investigating transverse ridges, together with glacifluvial and ice‐marginal landforms. The main emphasis is on the transverse ridges, which are primarily interpreted as ribbed moraines – the first to be described in Iceland.
Nína Aradóttir, Ívar Örn Benediktsson, Erla Guðný Helgadóttir, Ólafur Ingólfsson, Skafti Brynjólfsson, Wesley R. Farnsworth   +5 more
wiley   +1 more source