Results 51 to 60 of about 798 (185)
The Paleocene volcanic rocks in the Nuussuaq Basin on Disko and Nuussuaq comprise the picritic Vaigat Formation (c. 62–61 Ma) and the overlying basaltic Maligât Formation (c. 60 Ma).
Asger Ken Pedersen +2 more
doaj
The mesoproterozoic sub-Lifjell unconformity, central Telemark, Norway [PDF]
The sub-Lifjell unconformity subdivides the traditional Seljord group of the Telemark supracrustals, south Norway, into the Vindeggen and Lifjell groups.
K. Laajoki
doaj +1 more source
Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age
ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin +2 more
wiley +1 more source
The Upper Maastrichtian fluvial Hell Creek Formation of the Fort Peck Lake area, Montana (and regional equivalents) is notable for its vertebrate fossils and for the K-Pg mass extinction at or near its upper contact.
Denver Fowler
doaj +1 more source
Stratigraphical studies on Lake Iidesjärvi sediments. Part 1. Environmental changes and palaeolimnological development [PDF]
Palaeolimnological results for the small eutrophicated lake Iidesjärvi in the town of Tampere (S. Finland) show that it has been limnologically more or less productive since its isolation from the Ancylus Lake of the Baltic Sea.
P. Alhonen
doaj +1 more source
ABSTRACT During the last glacial period, the Laurentide Ice Sheet (LIS) was the largest terrestrial ice sheet on Earth. Its evolution since the Last Glacial Maximum profoundly influenced Earth's geodynamics and surface processes. Investigating the past dynamics of the LIS provides critical insights into how contemporary ice sheets may respond to ...
Alexis P. Belko +3 more
wiley +1 more source
Post‐Miocene Transtensional Opening of the Northern Red Sea
Abstract The mechanism of opening, as well as the crustal characteristics of the northern Red Sea are subject of ongoing controversial scientific debate. With the objective of elucidating the nature of rifting in this area, a grid of 2D multi‐channel reflection seismic data was acquired off the Al Wajh carbonate platform (AWCP), and supplemented by ...
Thomas Lüdmann +4 more
wiley +1 more source
High‐Resolution Anisian Marine Perturbation by Volcanism in the Eastern Paleo‐Tethys
Abstract Following the end‐Permian mass extinction, the Middle Triassic Anisian Stage was still characterized by environmental perturbations that hindered biological flourishing, yet it remains uncertain whether these persistent Tethyan disturbances were coupled with the closure of the Paleo‐Tethys Ocean.
Zhenyang Lai +12 more
wiley +1 more source
Lithostratigraphy of the Upper Oligocene – Miocene succession of Denmark
This paper presents a revised lithostratigraphic scheme for the uppermost Upper Oligocene – Miocene succession of Denmark. The marine Oligocene Brejning Clay Member is upgraded to formation status and includes the Sydklint Member and the Øksenrade Member (new). The shallow marine and deltaic deposits of mainly Early Miocene age are included in the Ribe
Rasmussen, Erik Skovbjerg +2 more
openaire +4 more sources
The Ostravice Sandstone Member was identified and described as a lithostratigraphic unit in the Polish part of the Outer Carpathians. This division occurs in the lowermost part of the Godula Formation, is underlain by variegated deposits of the Mazák ...
Cieszkowski Marek +7 more
doaj +1 more source

