References of "Fagel, Nathalie"
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See detailMultiproxy, multicore palaeoenvironmental study during the last millennium in the Misten peat bog (Hautes Fagnes, East Belgium).
De Vleeschouwer, François; Fagel, Nathalie ULiege; Mauquoy, D. et al

Poster (2009)

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See detailAnthropogenic impacts in North Poland over the last 1300 years -- A record of Pb, Zn, Cu, Ni and S in an ombrotrophic peat bog
De Vleeschouwer, François ULiege; Fagel, Nathalie ULiege; Cheburkin, Andriy et al

in Science of the Total Environment (2009)

Lead pollution history over Northern Poland was reconstructed for the last ca. 1300 years using the elemental and Pb isotope geochemistry of a dated Polish peat bog. The data show that Polish Pb–Zn ores ... [more ▼]

Lead pollution history over Northern Poland was reconstructed for the last ca. 1300 years using the elemental and Pb isotope geochemistry of a dated Polish peat bog. The data show that Polish Pb–Zn ores and coal were the main sources of Pb, other heavy metals and S over Northern Poland up until the industrial revolution. After review of the potential mobility of each element, most of the historical interpretation was based on Pb and Pb isotopes, the other chemical elements (Zn, Cu, Ni, S) being considered secondary indicators of pollution. During the last century, leaded gasoline also contributed to anthropogenic Pb pollution over Poland. Coal and Pb–Zn ores, however, remained important sources of pollution in Eastern European countries during the last 50 years, as demonstrated by a high 206Pb/207Pb ratio (1.153)relative to that of Western Europe (ca. 1.10). The Pb data for the last century were also in good agreement with modelled Pb inventories over Poland and the Baltic region. [less ▲]

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See detailMultiproxy evidence of `Little Ice Age' palaeoenvironmental changes in a peat bog from northern Poland
De Vleeschouwer, François ULiege; Piotrowska, Natalia; Sikorski, Jaroslaw et al

in Holocene (2009), 19(4), 625-637

`Little Ice Age' (LIA) climatic deteriorations have been abundantly documented in various archives such as ice, lake sediments and peat bog deposits. Palaeoecological analyses of peat samples have ... [more ▼]

`Little Ice Age' (LIA) climatic deteriorations have been abundantly documented in various archives such as ice, lake sediments and peat bog deposits. Palaeoecological analyses of peat samples have identified these climatic deteriorations using a range of techniques, for example palynology, plant macrofossils, testate amoebae or carbon isotopic analyses. The use of inorganic geochemistry and the reconstruction of dust fluxes has remained a challenge in tracing the nature of LIA climatic changes. Although the idea of enhanced erosion conditions and storminess is commonly discussed, the conditions for dust deposition in peatlands over Europe during the LIA are rarely favourable, because the natural forest cover over Europe was much more important than nowadays, preventing dust deposition. This intense forest canopy masks the deposition of dust in peatlands. In northern Poland, near the Baltic shore, the S[l]owi[n]skie B[l]ota area was deforested around AD 1100, ie, just before the LIA, and therefore constitutes a key area for the reconstruction of LIA climatic change. With the support of a well-constrained chronology, climatic fluctuations are recorded in an ombrotrophic bog using inorganic geochemistry, plant macrofossils and carbon isotopic analyses. The reconstruction of LIA climatic changes is in good agreement with other records from Poland and NE Europe. However, a c. 50-year discrepancy can be observed between various records. This discrepancy is possibly due to progressive time-dependent cooling gradient from north to south Europe. [less ▲]

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See detailHolocene evolution of deep circulation in the North Atlantic constrained by sedimentary radiogenic tracers.
Fagel, Nathalie ULiege; Brasseur; Mattielli et al

Conference (2009)

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See detailHolocene environmental changes in lake sediments from Northern Chilean Patagonia
Nuttin; Fagel, Nathalie ULiege; Brogniet et al

Poster (2009)

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See detailENVIRONMENTAL ASPECTS OF CLAY EXPLOITATION FOR FIRED CLAY BRICKS IN CAMEROON
Njoya, A.; Bastin, D.; Melo, U. et al

Poster (2009)

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See detail3D anatomy of Heinrich Layer 2.
Van Rooij, D.; Zaazi, N.; Fagel, Nathalie ULiege et al

Poster (2009)

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See detailHolocene environmental changes in lake sediments from Northern Chilean Patagonia (45-48°S)
Nuttin, L.; Fagel, Nathalie ULiege; Bertrand, S. et al

Poster (2009)

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See detailReconstruction of oceanic circulation using mineralogical and isotopical signatures of deep sea sediments. The case study of the northern Noth Atlantic…and some perspectives for the Arctic
Fagel, Nathalie ULiege

in Nihoul, Jacques; Kostianoy, Andrey (Eds.) Influence of climate change on the changing arctic and sub-arctic conditions (2009)

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See detailSedimentological fingerprints of recent earthquakes in lake sediments: A case study on the North Anatolian Fault (NAF), Turkey
Avsar, Ulas; Boes, X; Hubert, Aurelia ULiege et al

in EOS : Transactions, American Geophysical Union (2008, December), 89(53)(Fall Meet. Suppl.), 21-1919

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See detailKuzey Anadolu Fayı Üzerinde Yer Alan Sığ Göllerde Tarihsel Depremlerin Sedimantolojik İzlerinin Araştırılması
Avsar, Ulas; Boes, X; Hubert, Aurelia ULiege et al

Conference (2008, November)

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See detailSedimentological traces of earthquakes in recent lakes sediments along the North Anatolian Fault, Turkey
Avsar, Ulas; Boes, X; Hubert, Aurelia ULiege et al

Conference (2008, October)

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See detailCaractérisation minéralogique des argiles Crétacé et Pliocène de la région Tanger-Tétouan (NW du Maroc) en vue de leur valorisation industrielle
El Ouahabi, Meriam ULiege; Ben Moussa, Abelkhalek; Fagel, Nathalie ULiege

Conference (2008, June)

Notre étude s’intéresse aux gisements d’argiles Crétacé et Pliocène de la région Tanger Tétouan au NW du Maroc. Dans cette région, les argiles crétacées sont utilisées en particulier dans l’industrie des ... [more ▼]

Notre étude s’intéresse aux gisements d’argiles Crétacé et Pliocène de la région Tanger Tétouan au NW du Maroc. Dans cette région, les argiles crétacées sont utilisées en particulier dans l’industrie des céramiques de murs et des briques. Les formations pliocènes inférieures, constituées d’un mélange de marnes, de sables et de graviers, sont traditionnellement utilisées comme matière première dans la production de poteries. Une quarantaine d’échantillons ont étés prélevés sur plus de vingt sites dans des formations à dominance argileuse qui affleurent dans le domaine rifain. Les analyses minéralogiques par diffraction des rayons X (D8 Advance) ont fait l’objet d’une analyse de la minéralogie totale sur poudre et d’une analyse de la fraction argileuse < 2 microns sur agrégat orienté ainsi que des essais géotechniques (limites d’Atterberg) Le cortège minéralogique est assez diversifié. La minéralogie totale est composée de quartz (47 %), feldspath (4 à 12 %.), carbonates (calcite de traces jusqu’à 43 % et dolomite de traces jusqu’à 23 %) et muscovite (49 %). Les minéraux argileux de base sont: chlorite – kaolinite – illites avec la présence d’interstratifiés (vermiculitesmectite et chlorites-vermiculite). Les argiles prises des formations crétacées contiennent une grande proportion de chlorites, de kaolinites, de illites et d’interstratifiés chlorite-vermiculite, alors que les argiles pliocènes renferment moins de chlorites, de smectites, de vermiculites et de kaolinites. Les limites d'Atterberg montrent des indices de plasticité (IP) inférieurs à 10% pour les pélites gris-vert de l’unité de Tanger interne tandis que des indices de plasticité sont compris entre 10 et 50% pour les argiles de l’unité de Tanger externe. Les limites d’élasticité (WP) oscillent entre 20 et 40%, et les limites de plasticité (WL) se situent entre 20 et 70%. Les résultats montrent que le cortège argileux extrait des sédiments crétacés et pliocènes de la zone d’étude est caractérisé par une variété en composition minéralogique et une hétérogénéité de la composition argileuse au sein de même site, tandis que les limites d’Atterberg montrent une plasticité moyenne pour l’unité de Tanger interne et une plasticité élevée pour les argiles de l’unité de Tanger externe [less ▲]

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See detailTraces of the last earthquake sequence (1939-1944) along NAF from lacustrine sediments.
Avsar, U.; Boes, X.; Hubert, Aurelia ULiege et al

Poster (2008)

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See detailNature, origin, transport and deposition of andosol parent material in south-central Chile (36-42 degrees S)
Bertrand, Sebastien; Fagel, Nathalie ULiege

in Catena (2008), 73(1), 10-22

The andosols of south-central Chile (36-42 degrees S) are developed on yellow-brown loams that cover the region with a thickness of several meters. In the literature, several hypotheses concerning the ... [more ▼]

The andosols of south-central Chile (36-42 degrees S) are developed on yellow-brown loams that cover the region with a thickness of several meters. In the literature, several hypotheses concerning the nature, origin, mode of transport and deposition of the andosol parent material have been advanced but no general agreement has been found. In this paper, we test these hypotheses by analyzing new representative outcrops located around Icalma (38 degrees 50'S) and Puyehue (40 degrees 40'S) lakes by a pluri-methodological approach. Our data demonstrate that the andosol parent material has the typical mineralogical and geochemical signature of the regional volcanism and that these deposits are post-glacial in age. The grain size of the deposits and the morphology of the coarse grains evidence that most of these particles haven't been re-transported by wind but are direct volcanic ash falls deposited throughout the Late Glacial and Holocene. Because of the prevailing westerly winds, most of these volcanic ashes have been transported to the East. Following the deposition of the volcanic particles, weathering and pedogenetic processes have transformed part of the volcanic glasses and plagioclases into allophane and have wiped out the original layering. This work demonstrates that most of the andosols that occur in the Andes and in the eastern part of the Intermediate Depression of south-central Chile are developed on volcanic ashes directly deposited by successive volcanic eruptions throughout the Late Glacial and Holocene. (C) 2007 Elsevier B.V. All rights reserved. [less ▲]

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See detailHolocene records of regional dust deposition using peat bogs
Le Roux, G.; De Vleeschouwer, François; Cheburkin, A. et al

in Geochimica et Cosmochimica Acta (2008), 72(12), 535-535

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