Nathalie Fagel

Bulk organic geochemistry of sediments from Puyehue Lake and its watershed (Chile, 40°S) : implications for paleoenvironmental reconstructions (2009)

Bertrand, Sebastien, Sterken, Mieke, Vargas-Ramirez, Lourdes, De Batist, Marc, Vyverman, Wim, Lepoint, Gilles, ...

Author Posting. © Elsevier B.V., 2009. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was...

Multiproxy evidence of Little Ice Age palaeoenvironmental changes in a peat bog from northern Poland (2009)

De Vleeschouwer, François, Piotrowska, Natalia, Sikorski, Jarosław, Pawlyta, Jacek, Cheburkin, Andriy, Le Roux, Gaël, ...

‘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...

Multiproxy evidence of `Little Ice Age' palaeoenvironmental changes in a peat bog from northern Poland (2009)

De Vleeschouwer, François, Piotrowska, Natalia, Sikorski, Jaroslaw, Pawlyta, Jacek, Cheburkin, Andriy, Le Roux, Gael, ...

`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...

Timing of the late glacial and Younger Dryas cold reversal in southern Chile varved sediments (2008)

Boes, Xavier, Fagel, Nathalie

The timing of the last deglaciation in southern Chile is re-evaluated from a calendar varve chronology (Lago Puyehue, 40 degrees S). The climate shifts are analysed by continuous annual...

Nature, origin, transport and deposition of andosol parent material in south-central Chile (36-42 degrees S) (2008)

Bertrand, Sebastien, Fagel, Nathalie

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...

A 17,900-year multi-proxy lacustrine record of Lago Puyehue (Chilean Lake District): introduction (2008)

De Batist, Marc, Fagel, Nathalie, Loutre, Marie-France, Chapron, Emmanuel

This paper introduces the background and main results of a research project aimed at unravelling the paleolimnological and paleoclimatological history of Lago Puyehue (40 degrees S, Lake District,...

Climate variability of southern Chile since the Last Glacial Maximum: a continuous sedimentological record from Lago Puyehue (40 degrees S) (2008)

Bertrand, Sebastien, Charlet, Francois, Charlier, Bernard, Renson, Virginie, Fagel, Nathalie

This paper presents a multi-proxy climate record of an 11 m long core collected in Lago Puyehue (southern Chile, 40 degrees S) and extending back to 18,000 cal yr BP. The multi-proxy analyses include...

Late Quaternary climatic changes in southern Chile, as recorded in a diatom sequence of Lago Puyehue (40 degrees 40 ' S) (2008)

Sterken, Mieke, Verleyen, Elie, Sabbe, Koen, Terryn, Griet, Charlet, Francois, Bertrand, Sebastien, ...

A late Quaternary diatom stratigraphy of Lago Puyehue (40 degrees 40'S, 72 degrees 28'W) was examined in order to infer past limnological and climatic changes in the South-Chilean Lake District. The...

Relationships between southern Chilean varved lake sediments, precipitation and ENSO for the last 600 years (2008)

Boes, Xavier, Fagel, Nathalie

In this paper, the relationships between paleo-precipitation and the regional influence of El Nino Southern Oscillation (ENSO) in South America are assessed from a high-resolution calendar...

Climate oscillations evidenced by spectral analysis of Southern Chilean lacustrine sediments: the assessment of ENSO over the last 600 years (2008)

Fagel, Nathalie, Boes, X, Loutre, M F

The Chilean Lake District (38-42 degrees S) is strongly influenced by Southern westerlies-driven precipitations. At 40 degrees S Lago Puyehue provides high resolution sedimentation rates (similar to...

Assembly and concept of a web-based GIS within the paleolimnological project CONTINENT (Lake Baikal, Russia) (2008)

Heim, Birgit, Klump, Jens, Oberhaensli, Hedi, Fagel, Nathalie

Web-based Geographical Information Systems (GIS) are excellent tools within interdisciplinary and multi-national geoscience projects to exchange and visualize project data. The web-based GIS...

Clay-mineral record in Lake Baikal sediments: The Holocene and Late Glacial transition (2008)

Fagel, Nathalie, Boes, Xavier

We analyse the clay-mineralogical composition of two 1-m long cores from elevated plateaus in the southern and northern basins of Lake Baikal. Our aim is to test the limits of classically used clay...

Geochemical and Pb isotopic signature of peaty sediments from central-south Chile: Identification of particle supplies over the Holocene (2008)

De Vleeschouwer, François, Ibanez, Maud, Mattielli, Nadine, Maerschalk, Claude, Fagel, Nathalie

Two cores from tephra rich peat soils of the Chilean Lake District were investigated for mineral source and potential anthropogenic impact using elemental geochemistry, including rare earth elements,...

Weathering in the Lake Baikal watershed during the Kazantsevo (Eemian) interglacial: Evidence from the lacustrine clay record (2008)

Fagel, Nathalie, Mackay, Anson W

The clay-mineralogical record of a piston core recovered on an elevated plateau in the northern basin of Lake Baikal has been investigated for the Kazantsevo interglacial period (i.e., Eemian s.s....

Long term mobilisation of chemical elements in tephra-rich peat (NE Iceland) (2008)

De Vleeschouwer, François, Lanoe, Brigitte Van Vliet, Fagel, Nathalie

This paper presents geochemical profiles of a tephra-bearing minerotrophic peat column from NE-Iceland obtained using various elemental analyses of the solid phase and the pore water. The influence...

Roman road pollution assessed by elemental and lead isotope geochemistry in East Belgium (2008)

Renson, Virginie, Fagel, Nathalie, Mattielli, Nadine, Nekrassoff, Serge, Streel, Maurice, De Vleeschouwer, François

The ability of inorganic geochemistry to record environmental change and especially human impact has been evidenced by several studies across Europe, especially in peat, where it is possible to...

Nature, origin, transport and deposition of andosol parent material in south-central Chile (36-42°S) (2007)

Bertrand, Sebastien, Fagel, Nathalie

Author Posting. © Elsevier B.V., 2007. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was...

Changes of sub-fossil chironomid assemblages associated with volcanic sediment deposition in an Andean lake (38 degrees S), Chile (2007)

Araneda, Alberto, Cruces, Fabiola, Torres, Laura, Bertrand, Sébastien, Fagel, Nathalie, Treutler, Hans C., ...

Chironomid assemblages and sedimentological parameters (grain size, organic content, mineralogy) of a short sediment core from Lake Galletue (38 degrees 41' S, 71 degrees 17' W) were analysed. The...

Climate variability of southern Chile since the Last Glacial Maximum : a continuous sedimentological record from Lago Puyehue (40°S) (2007)

Bertrand, Sebastien, Charlet, Francois, Charlier, Bernard, Renson, Virginie, Fagel, Nathalie

Author Posting. © Springer, 2007. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published...

Mineralogical signatures of Lake Baikal sediments: Sources of sediment supplies through Late Quaternary (2007)

Fagel, Nathalie, Thamo-Bozso, Edith, Heim, Birgit

The mineralogical composition of Late Quaternary sediments was investigated in three piston cores recovered on elevated plateaus in Lake Baikal: on Continent Ridge, a northern extension of...

Changes of sub-fossil chironomid assemblages associated with volcanic sediment deposition in an Andean lake (38 degrees S), Chile (2007)

Araneda, Alberto, Cruces, Fabiola, Torres, Laura, Bertrand, Sebastien, Fagel, Nathalie, Treutler, Hans C, ...

Chironomid assemblages and sedimentological parameters (grain size, organic content, mineralogy) of a short sediment core from Lake Galletue (38 degrees 41' S, 71 degrees 17' W) were analysed. The...

Glacial/interglacial instabilities of the Western Boundary Under Current during the last 365 kyr from Sm/Nd ratios of the sedimentary clay-size fractions at ODP site 646 (Labrador Sea) (2006)

Fagel, Nathalie, Hillaire-Marcel, Claude

We present 40 Sm-Nd isotope measurements of the clay-size (< 2 mu m) fractions of sediments from the Southern Greenland rise (ODP-646) that span the last 365 kyr. These data track changes in the...

Reconstruction of the Holocene seismotectonic activity of the Southern Andes from seismites recorded in Lago Icalma, Chile, 39°S (2006)

Bertrand, Sebastien, Charlet, Francois, Chapron, Emmanuel, Fagel, Nathalie, De Batist, Marc

Author Posting. © Elsevier B.V., 2007. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was...

Changes in diatom assemblages in an Andean lake in response to a recent volcanic event (2006)

Cruces, Fabiola, Urrutia, Roberto, Parra, Oscar, Araneda, Alberto, Treutler, H, Bertrand, Sébastien, ...

Galletue Lake (38 degrees 41'S; 71 degrees 17'W, IX Region-Chile) is located in an area that is highly influenced by eruptive activity of the Lonquimay and Llaima volcanoes. As a consequence, during...

Chemical profiles in lake sediments in Laguna Chica de San Pedro (Bio-Bio Region, Chile) (2005)

Chirinos, LR, Urrutia, R, Fagel, Nathalie, Bertrand, S, Gamboa, N, Araneda, A, ...

Metal profiles in lake sediments could provide historical environmental information on impacts caused by human activities and natural events, with view to the formulation of effective environmental...

Impregnation method for detecting annual laminations in sediment cores: An overview (2005)

Boes, Xavier, Fagel, Nathalie

Annually laminated sediments can provide an absolute time scale (by varve counting) and a high-resolution palaeoclimate information (from varve thickness). Both types of information may be directly...

A qualitative assessment of the influence of bioturbation in Lake Baikal sediments (2005)

Martin, Patrick, Boes, Xavier, Goddeeris, Baudouin, Fagel, Nathalie

The impact of bioturbation in Lake Baikal sediments, particularly on rhythmic layering and mixing, was assessed by studying the actual vertical distribution of benthic animals in continuous...

Vivianite formation and distribution in Lake Baikal sediments (2005)

Fagel, Nathalie, Alleman, LY, Granina, L, Hatert, Frédéric, Thamo-Bozso, Edith, Cloots, Rudi, ...

In an effort to better understand vivianite formation processes, four Lake Baikal sediment cores spanning two to four interglacial stages in the northern, central and southern basins and under...

Sedimentary dynamics on isolated highs in Lake Baikal: evidence from detailed high-resolution geophysical data and sediment cores (2005)

Charlet, F, Fagel, Nathalie, De Batist, M, Hauregard, F, Minnebo, B, Meischner, D

High- and very-high-resolution seismic data, side-scan sonar mosaics and piston cores from three isolated highs in Lake Baikal (Vydrino Shoulder, Posolsky Bank, Continent Ridge) have allowed to...

Impregnation method for detecting annual laminations in sediment cores: An overview (2005)

Boes, X, Fagel, Nathalie

Annually laminated sediments can provide an absolute time scale (by varve counting) and a high-resolution palaeoclimate information (from varve thickness). Both types of information may be directly...

Vivianite formation and distribution in Lake Baikal sediments (2005)

Fagel, Nathalie, Alleman, LY, Granina, L, Hatert, Frédéric, Thamo-Bozso, E, Cloots, Rudi, ...

In an effort to better understand vivianite formation processes, four Lake Baikal sediment cores spanning two to four interglacial stages in the northern, central and southern basins and under...

Temporal evolution of sediment supply in Lago Puyehue (Southern Chile) during the last 600 yr and its climatic significance (2005)

Bertrand, S, Boes, X, Castiaux, J, Charlet, F, Urrutia, R, Espinoza, C, ...

Short-term climate changes in Southern Chile are investigated by a multi-proxy analysis of a 53-cm-long sedimentary sequence selected among eight short cores retrieved in Lago Puyehue (Chile, 40...

Nd and Pb isotope signatures of the clay-size fraction of Labrador Sea sediments during the Holocene: Implications for the inception of the modern deep circulation pattern (2004)

Fagel, Nathalie, Hillaire-Marcel, Claude, Humblet, Marc, Brasseur, Robert, Weis, Dominique, Stevenson, Ross

Nd and Pb isotopes were measured on the fine fraction of one sediment core drilled off southern Greenland. This work aims to reconstruct the evolution of deep circulation patterns in the North...

Reconstructing export production at the NE Atlantic Margin: potential and limits of the Ba proxy (2004)

Fagel, Nathalie, Dehairs, Frank, Peinert, Ralf, Antia, Avan, André, Luc

Barium (Ba), aluminium (Al), and zirconium (Zr) were measured in sediment trap material deployed at two margin settings of the NE Atlantic: the Bay of Biscaye at Goban Spur and the NW Iberian Margin....

Late Quaternary clay mineral record in Central Lake Baikal (Academician Ridge, Siberia) (2003)

Fagel, Nathalie, Boski, T, Likhoshway, L, Oberhaensli, Hedi

We investigated the mineralogical composition of two cores recovered on the Academician Ridge (Central Lake Baikal, Siberia). Sedimentological features show that the cores are unaffected by turbidity...

Sources of Labrador Sea sediments since the last glacial maximum inferred from Nd-Pb isotopes (2002)

Fagel, Nathalie, Innocent, Christophe, Gariepy, Clément, Hillaire-Marcel, Claude

Pb isotopes have been measured in the clay-size fraction of Late Glacial and Holocene deep-sea sediments recovered from two Labrador Sea piston cores that have been previously analyzed for Nd...

Ba distribution in surface Southern Ocean sediments and export production estimates (2002)

Fagel, Nathalie, Dehairs, Frank, André, Luc, Bareille, Gilles, Monnin, Cnristophe

[1] We present excess Ba (Baxs) data (i.e., total Ba corrected for lithogenic Ba) for surface sediments from a north-south transect between the Polar Front Zone and the northern Weddell Gyre in the...

Smectite composition as a tracer of deep circulation: the case of the Northern North Atlantic (2001)

Fagel, Nathalie, Robert, Christian, Preda, Michel, Thorez, Jacques

The link between smectite composition in sediments from the northern North Atlantic and Labrador Sea, and deep circulation is being further investigated through detailed studies of the X-ray pattern...

Sm-Nd isotope systematics in deep-sea sediments: clay-size versus coarser fractions (2000)

Innocent, C, Fagel, Nathalie, Hillaire-Marcel, C

Sm-Nd studies were carried out on Last Glacial and Holocene sediments from the Labrador Sea. Three grain-size fractions were analyzed for each sediment: the clay-size fraction (