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Accueil > Recherche > Productions Scientifiques > Articles dans des revues avec comité de lecture

Articles dans des revues avec comité de lecture : Année 2013

Temporal evolution of a Polynesian hotspot: New evidence from Raivavae (Austral islands, South Pacific ocean)

18 août 2014

A new geological mapping of Raivavae island, Austral-Cook linear chain, French Polynesia, combined with 10 unspiked K/Ar ages measured on its lavas, shows that it was built during two successive volcanic phases : 10.6-7.4 Ma (dykes crosscutting Rairua submarine breccias and younger subaerial (...)

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Mass assembly in quiescent and star-forming galaxies since z ≃ 4 from UltraVISTA

15 mai 2014

We estimate the galaxy stellar mass function and stellar mass density for star-forming and quiescent galaxies with 0.2 < z < 4. We construct a large, deep (Ks < 24) sample of 220 000 galaxies selected using the new UltraVISTA DR1 data release. Our analysis is based on precise (...)

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3D gravity interpretation of the pre-Tertiary basement in the intra-montane depressions of the Western Carpathians : a case study from the Turiec Basin

2 avril 2014

New results related to the thickness and density of the sedimentary fill of the Turiec Basin allowed us to construct the first original stripped gravity map for this typical intramontane Neogene depression of the Western Carpathians. The stripped gravity map of the Turiec Basin represents the (...)

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Monitoring seasonal snow dynamics using ground based high resolution photography (Austre Lovenbreen, Svalbard, 79°N)

17 février 2014

Arctic glaciers are reliable indicators of global climate changes. However, monitoring snow and ice dynamics in Arctic regions is challenging: some fast but key events can be missed since they are short in time but significant in the hydrological budget. In the context of long term monitoring (...)

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Monitoring seasonal snow dynamics using ground based high resolution photography

15 janvier 2014

Arctic glaciers are reliable indicators of global climate changes. However, monitoring snow and ice dynamics in Arctic regions is challenging: some fast but key events can be missed since they are short in time but significant in the hydrological budget. In the context of long term monitoring (...)

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High-overtone bulk acoustic resonator as passive ground penetrating RADAR cooperative targets

15 janvier 2014

RAdio-frequency Detection And Ranging instruments--RADARs--are widely used for applications aimed at measuring passive target velocity or ranging for various metrology applications such as ground position and localization. Within the context of using piezoelectric acoustic passive sensors as (...)

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Deriving ice thickness, glacier volume and bedrock morphology of the Austre Lov'enbreen (Svalbard) using Ground-penetrating Radar

15 janvier 2014

Austre Lovénbreen is a 4.6 km2 glacier on the Archipelago of Svalbard (79o N) that has been surveyed over the last 47 years in order to monitor in particular the glacier evolution and associated hydrological phenomena in the context of nowadays global warming. A three-week field survey during (...)

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Advances in handling small radiocarbon samples at the " Laboratoire de mesure du carbone 14 " in Saclay, France

31 décembre 2013

The Artemis accelerator mass spectrometry (AMS) facility, installed in 2003 in Saclay, France, is devoted to radiocarbon measurements. Samples are submitted by scientists in the fields of Quaternary geology, environmental sciences, and archaeology. The entire preparation process, originally (...)

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Cherts of the Barberton greenstone belt, South Africa : petrology and trace-element geochemistry of 3.5 to 3.3 ga old silicified volcaniclastic sediments

16 décembre 2013

A suite of green and carbonaceous black chert interbedded with submarine volcanic rocks from several stratigraphic levels of the Onverwacht Group of the Barberton greenstone belt, from the top of the ~3.48 Ga Komati Formation to the base of the ~3.26 Ga Fig Tree Group have been investigated (...)

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Remanence of lead pollution in an urban river system : a multi-scale temporal and spatial study in the Seine River basin, France

3 décembre 2013

Total lead (Pb) concentration and Pb isotopic ratio ((206)Pb/(20)7Pb) were determined in 140 samples from the Seine River basin (France), covering a period of time from 1945 to 2011 and including bed sediments (bulk and size fractionated samples), suspended particulate matter (SPM), sediment (...)

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Source of the great AD 1257 mystery eruption unveiled, Samalas volcano, Rinjani Volcanic Complex, Indonesia

14 novembre 2013

Polar ice core records attest to a colossal volcanic eruption that took place ca. A. D. 1257 or 1258, most probably in the tropics. Estimates based on sulfate deposition in these records suggest that it yielded the largest volcanic sulfur release to the stratosphere of the past 7,000 y. Tree (...)

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Synchrotron-based photoelectron spectroscopy provides evidence for a molecular bond between calcium and mineralizing organic phases in invertebrate calcareous skeletons

14 novembre 2013

Organic compounds have been extracted from calcium carbonate skeletons produced by three invertebrate species belonging to distinct phyla. The soluble parts of these skeleton matrices were isolated and analysed by synchrotron-based X-ray spectroscopy (XPS). The presence of calcium associated (...)

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Comparative study of Se oxyanions retention on three argillaceous rocks : Upper Toarcian (Tournemire, France), Black Shales (Tournemire, France) and Opalinus Clay (Mont Terri, Switzerland)

14 novembre 2013

A comparative study of selenium oxyanion sorption was carried out by means of batch sorption experiments on three argillaceous rocks that differ in their mineralogical compositions and textural properties. The results show no selenate (Se(VI)) sorption onto the argillaceous rocks after 60 days, (...)

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Petrology of the high-Mg tonalites and dioritic enclaves of the ca. 2130 Ma Alto Maranhão suite: Evidence for a major juvenile crustal addition event during the Rhyacian orogenesis, Mineiro Belt, southeast Brazil

28 octobre 2013

Combined field observations, petrography, mineral chemistry, geochemistry, Nd isotopes and U-Pb zircon data are presented for the ca. 2130 Ma Alto Maranhão suite. The suite, composed by allanite-bearing biotite hornblende tonalites and commingled dioritic mafic magmatic enclaves (MME), occupies (...)

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Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscay)

15 octobre 2013

The lithium/magnesium (Li/Mg) molar ratios, radiocarbon measurements (Δ14C) and Nd-isotopic composition (ɛNd) of the aragonite skeleton of a branching cold-water coral (CWC) species Madrepora oculata collected alive in the Bay of Biscay at ˜691 m water depth were investigated to reconstruct a (...)

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Paleoenvironmental changes during the Valanginian : new insights from variations in phosphorus contents and bulk- and clay mineralogies in the western Tethys

9 octobre 2013

Paleoenvironmental and paleoclimatic changes during the Valanginian carbon isotopic excursion (CIE) have been investigated in the western Tethys. For this purpose, bulk-rock and clay mineralogies, as well as phosphorus (P) contents were evaluated in a selection of five sections located in the (...)

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GPS and tectonic evidence for a diffuse plate boundary at the Azores Triple Junction

9 octobre 2013

We use GPS, bathymetric/structural, and seismic data to define the pattern of present deformation along the northern half of the Azores plateau, where the Nubia-Eurasia plate boundary terminates at the axis of the Mid-Atlantic Ridge (MAR). New and existing campaign GPS velocities from the (...)

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Designing a Multi-scale Sampling System of Stream-Aquifer Interfaces in a Sedimentary Basin

8 octobre 2013

A methodological framework is proposed for designing a multi-scale sampling system to quantify the stream-aquifer interactions in a multi-layer aquifer system. First, geophysical and drilling investigations are performed to assess the regional structure of the aquifer system and the local (...)

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Tchabal Gangdaba Massif in the Cameroon volcanic Line: a bimodal association

2 octobre 2013

Tchabal Gangdaba (TG) volcanic massif, which is a part of the continental sector of the Cameroon Volcanic Line (CVL), is dated between 34.4 and 25.1 Ma. It displays mafic lavas (picrobasalt and basanite, 41-43 wt % SiO2) and felsic lavas (rhyolite, 68-73 wt % SiO2). The lack of intermediate (...)

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Libyan Desert Glass : new field and Fourier Transform InfraRed data

2 octobre 2013

Results are presented of new geological observations and laboratory analyses on Libyan Desert Glass (LDG), a unique kind of impact glass found in Egypt, probably 28.5-29.4 million years in age. A new LDG occurrence has been discovered some 50 kilometers southward of the main LDG occurrences in (...)

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The Science of Exoplanets and Their Systems

2 octobre 2013

A scientific forum on "The Future Science of Exoplanets and Their Systems," sponsored by Europlanet* and the International Space Science Institute (ISSI)† and co-organized by the Center for Space and Habitability (CSH)‡ of the University of Bern, was held during December 5 and 6, 2012, in Bern, (...)

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Tracking atmospheric and riverine terrigenous supplies variability during the Holocene and last glacial in central Mediterranean

12 septembre 2013

A multiproxy study coupling mineralogical, grain size and geochemical approaches was used to tentatively retrace eolian and fluvial contributions to sedimentation in the Sicilian Tunisian Strait since the last glacial. The eolian supply is dominant over the whole interval, excepted during the (...)

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Chemical influence on α-recoil damage annealing in apatite: Implications for (U-Th)/He dating

10 septembre 2013

Apatite (U-Th)/He (AHe) ages reflect the influence of several parameters such as grain size, thermal history and diffusion kinetics. Previous work has suggested that recoil damage produced by the U-Th decay chains can have a significant effect on He diffusion kinetics. Models taking into (...)

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Carbon Cycling and Organic Radiocarbon Reservoir Effect in a Meromictic Crater Lake (Lac Pavin, Puy-de-Dôme, France)

4 septembre 2013

Lac Pavin is a meromictic maar lake for which the interpretation of sediment radiocarbon dates is complicated by the existence of a largely undefined reservoir effect resulting from degradation of carbon stored in the bottom layer of the water column. A data set of the contemporary 14C (...)

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On the iron isotope heterogeneity of lithospheric mantle xenoliths : implications for mantle metasomatism, the origin of basalts and the iron isotope composition of the Earth

3 septembre 2013

With the aim to better understand the cause of the iron isotope heterogeneity of mantle-derived bulk peridotites, we compared the petrological, geochemical and iron isotope composition of four xenolith suites from different geodynamic settings; sub-arc mantle (Patagonia); subcontinental (...)

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From the AllerØd to the mid-Holocene : palynological evidence from the south basin of the Caspian Sea

3 septembre 2013

Pollen and dinoflagellate cysts have been analysed in a core from the south basin of the Caspian Sea, providing a picture of respectively past vegetation and water salinity for the Late Pleistocene to middle Holocene. A relatively sharp lithological change at 0.86 m depth reflects a shift from (...)

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Astronomical calibration of the Valanginian "Weissert" episode : the Orpierre marl-limestone succession (vocontian Basin, southeastern France).

2 septembre 2013

A high-resolution, biostratigraphic (calcareous nannofossils, calpionellids), chemostratigraphic (C-isotope) and cyclostratigraphic (magnetic susceptibility) study was performed on the marlelimestone alternations of the Upper BerriasianeValanginian Orpierre section, deposited in the hemipelagic (...)

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A two-step expansion of the dinocyst Lingulodinium machaerophorum in the Caspian Sea : the role of changing environment

6 août 2013

Dinoflagellate cyst assemblages were analysed in four short sediment cores collected in the south Basin of the Caspian Sea for assessing environmental changes over the last few millennia. Two of these cores were dated by radionuclides. The sedimentation rate of one of them was very high, in the (...)

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From the subtropics to the central equatorial Pacific Ocean: neodymium isotopic composition and rare earth element concentration variations

29 juillet 2013

Neodymium isotopic compositions (eNd) and rare earth element (REE) concentrations were measured for filtered surface to deep waters (112 samples) in the Southern Tropical Pacific. The relatively detailed picture of these tracer distributions allowed us to refine the areas where oceanic eNd (...)

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Identifying the origin of groundwater samples in a Multi-Layer Aquifer System with random Forest Classification

26 juillet 2013

Accurate identification of the origin of groundwater samples is not always possible in complex multilayered aquifers. This poses a major difficulty for a reliable interpretation of geochemical results. The problem is especially severe when the information on the tubewells design is hard to (...)

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Origin of groundwater salinity (current seawater vs. saline deep water) in a coastal karst aquifer based on Sr and Cl isotopes. Case study of the La Clape massif (southern France)

16 juillet 2013

In this study a typical coastal karst aquifer, developed in lower Cretaceous limestones, on the western Mediterranean seashore (La Clape massif, southern France) was investigated. A combination of geochemical and isotopic approaches was used to investigate the origin of salinity in the aquifer. (...)

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Sub-kilometre (intra-crater) mounds in Utopia Planitia, Mars: character, occurrence and possible formation hypotheses

4 juillet 2013

At the middle latitudes of Utopia Planitia (∼35-45°N; ∼65-101°E) hundreds of small-sized mounds located in sub-kilometre impact craters dot the landscape. Their shape varies from circular to crescentic and their height ranges from ∼10 to 50 m. Often, metre to decametre pitting is observed, as is (...)

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Role of compressive tectonics on gas charging into the Ordovician sandstone reservoirs in the Sbaa, Algeria : constrained by fluid inclusions and mineralogical data

1er juillet 2013

Structure- and tectonic-related gas migration into Ordovician sandstone reservoirs and its impact on diagenesis history were reconstructed in two fields in the Sbaa Basin, in SW Algeria. This was accomplished by petrographical observations, fluid inclusion microthermometry and stable isotope (...)

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North-south palaeohydrological contrasts in the central Mediterranean during the Holocene: tentative synthesis and working hypotheses

28 juin 2013

On the basis of a multi-proxy approach and a strategy combining lacustrine and marine records along a north-south transect, data collected in the Central Mediterranean within the framework of a collaborative project have led to reconstruction of high-resolution and well-dated palaeohydrological (...)

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New 40Ar/39Ar and K-Ar ages of the Viluy traps (Eastern Siberia): Further evidence for a relationship with the Frasnian-Famennian mass extinction

28 juin 2013

We present here new ages, combining both K-Ar and 40Ar/39Ar techniques, reinforcing the possible link between the Viluy traps (eastern Siberia) with the Late-Devonian mass extinctions. The Viluy traps (also referred to as the Yakutsk large igneous province) are associated with the breakup of (...)

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Lower Paleogene denudation of Upper Cretaceous cover of the Morvan Massif and southeastern Paris Basin (France) revealed by AFT thermochronology and constrained by stratigraphy and paleosurfaces

28 juin 2013

Low-temperature thermochronology data have been acquired from outcrop samples from the southeastern edge of the Paris Basin (Morvan). They provide indications about the former sedimentary cover, its denudation and about inversion tectonics in the Paris Basin. Apatite fission-track data acquired (...)

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Cold-water coral carbonate mounds as unique palaeo-archives : the Plio-Pliocene Challanger Mound record (NE Atlantic)

20 juin 2013

Through the interplay of a stabilising cold-water coral framework and a dynamic sedimentary environment, cold-water coral carbonate mounds create distinctive centres of bio-geological accumulation in often complex (continental margin) settings. The IODP Expedition 307 drilling of the Challenger (...)

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Deriving ice thickness, glacier volume and bedrock morphology of the Austre Lovénbreen (Svalbard) using Ground-penetrating Radar

11 juin 2013

The Austre Lovénbreen is a 4.6 km2 glacier on the Archipelago of Svalbard (79°N) that has been surveyed over the last 47 years in order of monitoring in particular the glacier evolution and associated hydrological phenomena in the context of nowadays global warming. A three-week field survey over (...)

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Where does a glacier end ? GPR measurements to identify the limits between the slopes and the real glacier area. Application to the Austre Lovénbreen, Spitsbergen -- 79°N

6 juin 2013

Glacier limits are usually mapped according to a spatial discrimination based on color of remote sensing images or aerial photography. What appears like ice (white or light colored areas) at the end of the ablation period (end of summer) corresponds to the glacier, while what appears as rock (...)

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Chemical influence on a-recoil damage annealing in apatite : implications for (U/Th)He dating

5 juin 2013

Apatite (U-Th)/He (AHe) ages reflect the influence of several parameters such as grain size, thermal history and diffusion kinetics. Previous work has suggested that recoil damage produced by the U-Th decay chains can have a significant effect on He diffusion kinetics. Models taking into (...)

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Seismic anisotropy analysis at the Low-Noise Underground Laboratory (LSBB) of Rustrel (France),

4 juin 2013

Seismic anisotropy of a fractured karstic limestone massif in sub-parallel underground galleries is studied. As the fractures are mostly vertically oriented, the seismic properties of the massif are approximated by horizontal transverse isotropy (HTI). Several data inversion methods were (...)

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Control of aragonite deposition in colonial corals by intra-skeletal macromolecules

22 mai 2013

Scleractinian coral skeletons are composed mainly of aragonite in which a small percentage of organic matrix (OM) molecules is entrapped. It is well known that in corals the mineral deposition occurs in a biological confined nucleation site, but it is still unclear to what extent the (...)

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High-overtone bulk acoustic resonator as passive ground penetrating RADAR cooperative targets

10 mai 2013

RAdio-frequency Detection And Ranging instruments-RADARs-are widely used for applications aimed at measuring passive target velocity or ranging for various metrology applications such as ground position and localization. Within the context of using piezoelectric acoustic passive sensors as (...)

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The role of irion minerals in laminae formation in Late Pleistocene sédiments of the Caspian Sea

10 mai 2013

The 995 cm long sediment core was collected from the Central basin of the Caspian Sea. The sedimentary sequence, which covers the Late Pleistocene and Holocene, is marked in its Late Pleistocene section by well-developed black and grey/brownish laminae, which promptly disappear under oxidising (...)

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The fate of early Mars' lost water: The role of serpentinization

7 mai 2013

The fate of water which was present on early Mars remains enigmatic. We propose a simple model based on serpentinization, a hydrothermal alteration process which may produce magnetite and store water. Our model invokes serpentinization during about 500 to 800 Myr, while a dynamo is active, (...)

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A high resolution analysis of the structure and chemical composition of the calcareous corpuscles from Mesocestoides corti

30 avril 2013

Mesocestoides corti (syn. vogae), similar to many other cestode platyhelminthes, contains abundant calcium carbonate structures called calcareous corpuscles. These concretions that may constitute as much as 40% of the dry weight of the body, and were proposed to form intracellularly in certain (...)

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Occurrence of fluororichterite and fluorian biotite in the In Tifar trachyte neck (Tazrouk district, Hoggar volcanic province, Sahara, Algeria)

25 avril 2013

The unusual occurrence in the In Tifar trachyte neck (Tazrouk district, Hoggar volcanic province, Sahara, Algeria) of the fluorian biotite - fluororichterite association is presented. The two mineral species were previously unknown in the Hoggar and their association is uncommon worldwide. (...)

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Paleohydrology reconstruction and Holocene climate variability in the South Adriatic Sea

23 avril 2013

Holocene paleohydrology reconstruction is derived combining planktonic and benthic stable oxygen and carbon isotopes, sea surface temperatures (SSTs) and oxygen isotope composition of seawater (δ18Ow) from a high sedimentation core collected in the South Adriatic Sea (SAS). Core chronology is (...)

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Surface reflectance of Mars observed by CRISM/MRO : 1. Multi-angle approach for retrieval of surface reflectance from CRISM observations (MARS-ReCO)

22 avril 2013

This article addresses the correction for aerosol effects in near-simultaneous multi-angle observations acquired by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard the Mars Reconnaissance Orbiter. In the targeted mode, CRISM senses the surface of Mars using 11 viewing (...)

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Surface reflectance of Mars observed by CRISM/MRO : 2. Estimation of surface photometric properties in Gusev Crater and Meridiani Planum

22 avril 2013

The present article proposes an approach to analyze the photometric properties of the surface materials from multi-angle observations acquired by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) on-board the Mars Reconnaissance Orbiter. We estimate photometric parameters using (...)

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Colloids and suspended particulate matters influence on Ni availability in surface waters of impacted ultramafic systems in Brazil

15 avril 2013

The overall objective of this work was to assess the modification of Ni availability and lability consequently to anthropic activity. Surface waters were collected in two ultramafic complexes (Barro Alto and Niquelândia) from Goías State (Brazil) impacted by mining and metallurgical activities. (...)

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A 2300-year record of environmental change from SW Anatolia, Lake Burdur, Turkey

15 avril 2013

This work deals with changes recorded by lacustrine sediments from SW Anatolia in Turkey in the context of increasing stress on the Mediterranean environment in relation to human-climate-environmental interactions. Paleolimnological investigations were carried out on Lake Burdur (Lake District (...)

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Post-Variscan exhumation of the Central Anti-Atlas (Morocco) constrained by zircon and apatite fission-track thermochronology

15 avril 2013

The origin of the Anti-Atlas relief is one of the currently debated issues of Moroccan geology. To constrain the post-Variscan evolution of the Central Anti-Atlas, we collected nine samples from the Precambrian basement of the Bou Azzer-El Graara inlier for zircon and apatite fission-track (...)

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Geochemistry of Carbonates on Mars : implications for climate history and nature of aqueous environments

15 avril 2013

Ongoing research on martian meteorites and a new set of observations of carbonate minerals provided by an unprecedented series of robotic missions to Mars in the past 15 years help define new constraints on the history of martian climate with important crosscutting themes including: the CO2 (...)

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Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscayes)

15 avril 2013

The lithium/magnesium (Li/Mg) molar ratios, radiocarbon measurements (Δ14C) and Nd-isotopic composition (εNd) of the aragonite skeleton of a branching cold-water coral (CWC) species Madrepora oculata collected alive in the Bay of Biscay at ∼691 m water depth were investigated to reconstruct a (...)

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Neogene exhumation history of the Bergell massif (southeast Central Alps)

12 avril 2013

The Bergell pluton is an elongated plutonic body emplaced during Oligocene time along the Insubric line in the central Alps. Reconstruction of its exhumation, based on apatite (U-Th)/He dating and one-dimensional thermal modelling, provides evidence for a three steps history: (i) following (...)

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Building an isotopic hydrogeochemical indicator of anthropogenic pressure on urban rivers

12 avril 2013

This study provides evidence on the sources and pathways of trace-metal contamination using isotopic tracers, δ34S of dissolved sulfate and 206Pb/207Pb of suspended particulate matter (SPM), in an urban French river. The trace-metal contamination of the Orge River watershed was correlated with a (...)

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Outgassing history and escape of the Martian atmosphere and water inventory

12 avril 2013

The evolution and escape of the martian atmosphere and the planet's water inventory can be separated into an early and late evolutionary epoch. The first epoch started from the planet's origin and lasted ˜500 Myr. Because of the high EUV flux of the young Sun and Mars' low gravity it was (...)

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On the abundances of noble and biologically relevant gases in Lake Vostok, Antarctica

12 avril 2013

Motivated by the possibility of comparing theoretical predictions of Lake Vostok's composition with future in situ measurements, we investigate the composition of clathrates that are expected to form in this environment from the air supplied to the lake by melting ice. In order to establish the (...)

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Lithospheric structure of Southern Indian shield and adjoining oceans: integrated modelling of topography, gravity, geoid and heat flow data

12 avril 2013

For the present 2-D lithospheric density modelling, we selected three geotransects of more than 1000 km in length each crossing the southern Indian shield, south of 16 degrees N, in N-S and E-W directions. The model is based on the assumption of local isostatic equilibrium and is constrained by (...)

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