scholarly journals Upper Proterozoic and Lower Palaeozoic strata in northern East Greenland

1989 ◽  
Vol 145 ◽  
pp. 103-108
Author(s):  
M.J Hambrey ◽  
J.S Peel ◽  
M.P Smith
Keyword(s):  
North Atlantic ◽  
The Arctic ◽  
North Atlantic Region ◽  
Atlantic Region ◽  
East Greenland ◽  
Upper Proterozoic ◽  
Clastic Sediments ◽  
Upper Riphean ◽  
Lower Palaeozoic ◽  
The Subject

The Caledonides of East Greenland contain the best exposures of Upper Riphean to Ordovician sediments in the Arctic - North Atlantic region. At its thickest the sequence contains 13 km of Eleonore Bay Group clastic sediments and carbonates, the 0.8 km thick Tillite Group and 3 km of Cambro-Ordovician strata (Henriksen & Higgins, 1976; Henriksen, 1985). These sediments crop out in a belt stretching for nearly 300 km through the fjord region, between 71° 38' and 74° 25'N. Those in the northern part of the region, between Brogetdal in Strindberg Land and southern Payer Land, and especiaIly Albert Heim Bjerge and C. H. Ostenfeld Nunatak, were the subject of investigation during 1988 (figs 1, 2).

scholarly journals Lithostratigraphic framework of the Upper Proterozoic Eleonore Bay Supergroup of East and North-East Greenland

1993 ◽  
Vol 167 ◽  
pp. 1-38
Author(s):  
M Sønderholm ◽  
H Tirsgaard
Keyword(s):  
North Atlantic ◽  
Depositional Environment ◽  
North Atlantic Region ◽  
Atlantic Region ◽  
East Greenland ◽  
North East ◽  
The North ◽  
Upper Proterozoic ◽  
The North Atlantic

In the region between Canning Land (71° 30’N) and Bessel Fjord (76°N) the Eleonore Bay Supergroup is up to 16 km thick and comprises both metasediments and sediments. It is divided into five new groups. In the eastern outcrops four groups are found; these are from base to top: the Nathorst Land Group (up to c. II 000 m thick), the Lyell Land Group (2000-2800 m thick), the Ymer Ø Group (900-1300 m thick) and the Andrée Land Group (900-1500 m thick). The lower two of these groups consist of altemating sandstones and mudstones (and their metamorphic equivalents). Information on the depositional environment of the Nathorst Land Group is scarce, but both fluvial and marine settings have been tentatively proposed. The Lyell Land Group mainly represents marine shelf environments. The Ymer Ø and Andrée Land Groups are dominated by carbonates deposited in a platform, slope and basinal environment. Furthest west, in the nunatak region, a succession of sandstones and mudstones more than 6300 m thick is included in the Petermann Bjerg Group. The stratigraphic relationship between the Petermann Bjerg Group and the rest of the Eleonore Bay Supergroup is uncertain but possibly correlates with parts of the Nathorst Land and Lyell Land Groups. The Eleonore Bay Supergroup is finally compared with other Upper Proterozoic successions in the North Atlantic region.

scholarly journals Status and trends of terrestrial arthropod abundance and diversity in the North Atlantic region of the Arctic

AMBIO ◽  
2019 ◽  
Vol 49 (3) ◽  
pp. 718-731 ◽  
Author(s):  
Mark A. K. Gillespie ◽  
Matthias Alfredsson ◽  
Isabel C. Barrio ◽  
Joseph J. Bowden ◽  
Peter Convey ◽  
...  
Keyword(s):  
North Atlantic ◽  
The Arctic ◽  
North Atlantic Region ◽  
Atlantic Region ◽  
The North ◽  
Status And Trends ◽  
The North Atlantic ◽  
Abundance And Diversity ◽  
Arthropod Abundance

scholarly journals Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Sandro Dahlke ◽  
Marion Maturilli
Keyword(s):  
North Atlantic ◽  
Flow Direction ◽  
Strong Dependence ◽  
Warming Trend ◽  
The Arctic ◽  
Lower Latitude ◽  
Tropospheric Temperature ◽  
North Atlantic Region ◽  
Atlantic Region ◽  
Near Surface

Arctic Amplification of climate warming is caused by various feedback processes in the atmosphere-ocean-ice system and yields the strongest temperature increase during winter in the Arctic North Atlantic region. In our study, we attempt to quantify the advective contribution to the observed atmospheric warming in the Svalbard area. Based on radiosonde measurements from Ny-Ålesund, a strong dependence of the tropospheric temperature on the synoptic flow direction is revealed. Using FLEXTRA backward trajectories, an increase of advection from the lower latitude Atlantic region towards Ny-Ålesund is found that is attributed to a change in atmospheric circulation patterns. We find that about one-quarter (0.45 K per decade) of the observed atmospheric winter near surface warming trend in the North Atlantic region of the Arctic (2 K per decade) is due to increased advection of warm and moist air from the lower latitude Atlantic region, affecting the entire troposphere.

Re-imagining Democracy in the Age of Revolutions

2013 ◽  
Keyword(s):  
American Revolution ◽  
North Atlantic ◽  
The United States ◽  
Modern World ◽  
North Atlantic Region ◽  
Institutional Form ◽  
Modern Democracy ◽  
Atlantic Region ◽  
The North ◽  
The Subject

This book charts a transformation in how people thought about democracy in the North Atlantic region in the years between the American Revolution and the revolutions of 1848. In the mid-eighteenth century, ‘democracy’ was a word known only to literate publics; it was associated primarily with the ancient world, and had negative connotations: democracies were conceived to be unstable, warlike, and prone to mutate into despotisms. By the mid-nineteenth century, by contrast, democracy had become an important category for thinking about the modern world, and had passed into general use – though it was still not necessarily an approving term; in fact, there was much debate about whether democracy could achieve robust institutional form in advanced societies. In this book, an international cast of contributors shows how common trends worked through in four settings: the United States, France, Britain and Ireland, with special attention to the eras of the 1789 and 1848 revolutions. It is argued that ‘modern democracy’ was not invented in one place and then diffused elsewhere, but instead was the subject of parallel re-imaginings, as ancient ideas and examples were selectively invoked and reworked for modern use in different ways in different environments. The book significantly enhances our understanding of the diversity and complexity of our democratic inheritance

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