We present radiocarbon and neodymium isotope records from accurately dated (U-series) live and fossil (
Julie A. Trotter +6 more
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Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera [PDF]
The effect of carbonate ion concentration ([CO32−]) on calcification rates estimated from shell size and weight was investigated in the planktonic foraminifera Orbulina universa and Globigerinoides sacculifer. Experiments on G.
F. Lombard +3 more
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Die bisherigen Ergebnisse von C14-Messungen und paläolithischen Untersuchungen für die Gliederung und Chronologie des Jungpleistozäns in Mitteleuropa und den Nachbargebieten [PDF]
Das Letzte Interglazial (Riß/Würm oder Warthe/Weichsel = Eem-Interglazial) ist pollenanalytisch und durch die marine Eem-Fauna, auf dem Lande durch die letzte Antiquus- und Banatica-Fauna.
H. Gross
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Particulate organic matter controls benthic microbial N retention and N removal in contrasting estuaries of the Baltic Sea [PDF]
Estuaries worldwide act as “filters” of land-derived nitrogen (N) loads, yet differences in coastal environmental settings can affect the N filter function.
I. Bartl +6 more
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Transfer of environmental signals from the surface to the underground at Ascunsă Cave, Romania [PDF]
We present here the results of a 4-year environmental monitoring program at Ascunsă Cave (southwestern Romania) designed to help us understand how climate information is transferred through the karst system and archived by speleothems.
V. Drăguşin +13 more
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Growth rings show limited evidence for ungulates’ potential to suppress shrubs across the Arctic
Global warming has pronounced effects on tundra vegetation, and rising mean temperatures increase plant growth potential across the Arctic biome. Herbivores may counteract the warming impacts by reducing plant growth, but the strength of this effect may ...
Katariina E M Vuorinen +40 more
doaj +1 more source
Aperçu du Quaternaire à l’embouchure du Saguenay, Québec [PDF]
À l'embouchure du Saguenay, près de la tête du chenal Laurentien, le Quaternaire est représenté par un ensemble original d'unités morpho-sédimentaires dont le delta perché (120-125 m) de Tadoussac, le remblaiement fluvio-marin de la vallée de la rivière ...
Dionne, Jean-Claude, Occhietti, Serge
core +1 more source
Observations sur le Quaternaire de la rivière Boyer, côte sud de l’estuaire du Saint-Laurent, Québec [PDF]
La vallée de la rivière Boyer, à une quarantaine de kilomètres en aval de Québec, est remblayée par des dépôts quaternaires appartenant au Wisconsinien et à l'épisode marin goldthwaitien.
Dionne, Jean-Claude
core +1 more source
Styryllactones and Acetogenins from the Fruits of
Two new styryllactones, macrocalactone (1) and 3-deoxycardiobutanolide (2), were isolated from the fruits of Goniothalamus macrocalyx Ban (Annonaceae), together with seven known compounds including four acetogenins, annonacin (3), solamin (4 ...
Quy Hung Trieu +9 more
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