Results 11 to 20 of about 250 (169)

Geosystem Services of Erratic Boulders in Selected Regions of Central Poland

open access: yesResources
Scandinavian erratic boulders in central Poland represent a significant element of the region’s geodiversity, fulfilling important natural, scientific, and cultural functions.
Maria Górska-Zabielska, Anna Łubek
doaj   +2 more sources

A zero-exposure time test on an erratic boulder: evaluating the problem of pre-exposure in Surface Exposure Dating [PDF]

open access: yesEiszeitalter und Gegenwart, 2009
The method of surface exposure dating using in-situ produced cosmogenic nuclides has become an important and widely applied tool in Quaternary science. One application is the dating of erratic boulders on moraines.
L. A. Abbühl   +5 more
doaj   +1 more source

Late Holocene glacier and climate fluctuations in the Mackenzie and Selwyn mountain ranges, northwestern Canada [PDF]

open access: yesThe Cryosphere, 2023
Over the last century, northwestern Canada experienced some of the highest rates of tropospheric warming globally, which caused glaciers in the region to rapidly retreat.
A. C. Hawkins   +7 more
doaj   +1 more source

Age of the Ordovician sedimentary succession in Lumparn Bay, Åland Islands, Finland [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Depression of the ancient Lumparn meteorite impact structure in the Åland Islands is partly infilled with the lower Palaeozoic sediments, lying presently below sea level. The Cambrian and Ordovician sedimentary cover is distributed in the area of 15 km2,
Leho Ainsaar, Tõnu Meidla
doaj   +1 more source

Coupled climate-glacier modelling of the last glaciation in the Alps

open access: yesJournal of Glaciology, 2023
Our limited knowledge of the climate prevailing over Europe during former glaciations is the main obstacle to reconstruct the past evolution of the ice coverage over the Alps by numerical modelling.
Guillaume Jouvet   +11 more
doaj   +1 more source

Chitinozoan nomenclature and databases [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
In 1930, Alfred Eisenack suggested the term ‘chitinozoan’ for a microfossil group that he discovered from erratic boulders on the Baltic Sea coast.
Sonia Camina   +2 more
doaj   +1 more source

The deep accumulation of 10Be at Utsira, southwestern Norway: Implications for cosmogenic nuclide exposure dating in peripheral ice sheet landscapes

open access: yesGeophysical Research Letters, 2016
Cosmogenic nuclide exposure dating is a widely used method for constraining past ice sheet histories. We scrutinize a recently published data set of cosmogenic 10Be data from erratic boulders in Norway used to constrain the deglaciation of the western ...
Jason P. Briner   +3 more
doaj   +1 more source

Atractocybeloides, eine kleinwüchsige Trilobitengattung aus baltoskandischen Geschieben und ihrem Anstehenden [PDF]

open access: yesFossil Record, 2002
Aus mittel- bis oberordovizischen Geschieben werden fünf Taxa der kleinwüchsigen Trilobitengattung Atractocybeloides vorgestellt, davon die beiden neuen Arten Atractocybeloides nebeni n. sp. und Atractocybeloides oepiki n. sp.
H.-H. Krueger
doaj   +3 more sources

Saxicava Borings and Valves in a Boulder Clay Erratic [PDF]

open access: yesNature, 1889
WHEN examining a few weeks ago the boulders in the workings of the New Ferry Brick and Tile Company, Cheshire, with Mr. Harnett Harrisson, we discovered a boulder having superficially a scoriaceous appearance, which on examination proved to be of limestone, and perforated with Saxicava and other borings.
openaire   +2 more sources

Autochthonous Micrite to Aphanodolomite: The Microbialites in the Dolomitization Processes

open access: yesGeosciences, 2018
In the present paper, we examine the influence of micrite types, autochthonous or allochthonous, on the dolomitization processes. The recrystallized and dolomitized Carnian samples from Rifugio Vallandro and Alpe di Specie erratic boulders (South Tyrol ...
Adriano Guido   +3 more
doaj   +1 more source

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