Erratum to: Fuzzy Logic Determination of Lithologies from Well Log Data: Application to the KTB Project Data set (Germany)     

David Bosch  Juanjo Ledo  Pilar Queralt 《Surveys in Geophysics》2014,35(2):479-481

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A New Interlaboratory Characterisation of Silicon,Rare Earth Elements and Twenty‐Two Other Trace Element Concentrations in the Natural River Water Certified Reference Material SLRS‐6 (NRC‐CNRC)     

Delphine Yeghicheyan  Dominique Aubert  Martine Bouhnik‐Le Coz  Jrme Chmeleff  Sophie Delpoux  Irina Djouraev  Guy Granier  Franois Lacan  Jean‐Luc Piro  Tristan Rousseau  Christophe Cloquet  Aurlie Marquet  Christophe Menniti  Catherine Pradoux  Rmi Freydier  Emmanoel Vieira da Silva‐Filho  Krzysztof Suchorski 《Geostandards and Geoanalytical Research》2019,43(3):475-496

The natural river water reference material SLRS‐6 (NRC‐CNRC) is the newest batch of a quality control material routinely used in many international environmental laboratories. This work presents a nine‐laboratory compilation of measurements of major and trace element concentrations and their related uncertainties, unavailable in the NRC‐CNRC certificate (B, Cs, Li, Ga, Ge, Hf, Nb, P, Rb, Rh, Re, S, Sc, Se, Si, Sn, Th, Ti, Tl, W, Y, Y, Zr and REEs). Measurements were mostly made using inductively coupled plasma‐mass spectrometry. The results are compared with equivalent data for the last batch of the material, SLRS‐5, measured simultaneously with SLRS‐6 in this study. In general, very low concentrations, close to the quantification limits, were found in the new batch. The Sr isotopic ratio is also reported.  相似文献   

Experimental and theoretical study of the structural environment of magnesium in minerals and silicate glasses using X-ray absorption near-edge structure     

Nicolas Trcera  Delphine Cabaret  Stéphanie Rossano  François Farges  Anne-Marie Flank  Pierre Lagarde 《Physics and Chemistry of Minerals》2009,36(5):241-257

X-ray absorption spectroscopy at the Mg K-edge is used to obtain information on magnesium environment in minerals, silicate and alumino-silicate glasses. First-principles XANES calculations are performed for minerals using a plane-wave density functional formalism with core-hole effects treated in a supercell approach. The good agreement obtained between experimental and theoretical spectra provides useful information to interpret the spectral features. With the help of calculation, the position of the first peak of XANES spectra is related to both coordination and polyhedron distortion changes. In alumino-silicate glasses, magnesium is found to be mainly 5-fold coordinated to oxygen whatever the aluminum saturation index value. In silicate glasses, magnesium coordination increases from 4 in Cs-, Rb- and K-bearing glasses to 5 in Na- and Li-bearing glasses but remains equal as the polymerization degree of the glass varies. The variation of the C feature (position and intensity) is strongly related to the alkali type providing information on the medium range order.

Stéphanie RossanoEmail:

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New Caledonia Ophiolite, Marginal Rifting to Fore-arc Evolution     

Dominique CLUZEL  Jonathan AITCHISON  Arianna SECCHIARI  Alessandra MONTANINI  Delphine BOSCH 《《地质学报》英文版》2020,94(Z1):9-10

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Tidal and annual variability of the population structure of Eurytemora affinis in the middle part of the Seine Estuary during 2005     

David Devreker  Sami Souissi  Juan Carlos Molinero  Delphine Beyrend-Dur  Fernando Gomez  Joelle Forget-Leray 《Estuarine, Coastal and Shelf Science》2010

Annual variability in abundance and population structure of the copepod Eurytemora affinis was studied in the maximum turbidity zone of the Seine Estuary in 2005. An Eulerian sampling strategy was applied monthly from March to July and from September to December. Chlorophyll a and suspended particulate matter (SPM) concentration, copepod abundance and stage distribution, and phytoplankton abundance were measured in sub-surface and near-bottom water during the ebb phase. Total E. affinis abundance was at a maximum in March and April (>200 × 10³ ind. m⁻³), and decreased from May to September (<25 × 10³ ind. m⁻³). This decrease corresponds to annual increases in temperature, salinity, chlorophyll a concentration and phytoplankton abundance, which was dominated by large diatoms, and decreases in SPM and river discharge. The phenology observed in 2005 was almost two months earlier compared to previous studies in the 1990s, when E. affinis reached maximum abundance in May and June. The low proportion of nauplii (<50%) in the population and high abundance of ovigerous females suggests that low recruitment is probably related to anomalously low temperatures in late winter (<5 °C). Whatever the horizontal position of the population in the estuary, adult and late copepodid stages are distributed in higher salinity than naupliar stages. Overall E. affinis population abundance was driven by parameters that characterize water masses at the tidal scale and by river discharge and chlorophyll a at the annual scale. By integrating the tidal effect, the high-frequency sampling protocol used appears to be optimal for investigating annual variability of planktonic communities in megatidal estuaries.  相似文献   

Predation by jellyfish on large and emergent zooplankton: Implications for benthic–pelagic coupling   总被引：1，自引：0，他引：1  

Kylie A. Pitt  Anne-Laure Clement  Rod M. Connolly  Delphine Thibault-Botha   《Estuarine, Coastal and Shelf Science》2008,76(4):827-833

Stable carbon isotopes were used to determine the contribution of emergent demersal zooplankton to the diet of the scyphozoan jellyfish Catostylus mosaicus at Smiths Lake, New South Wales, Australia. A preliminary study in 2004 indicated that there was no difference in the δ¹³C of ectodermal tissue and mesoglea of the medusae. In 2005, medusae and zooplankton present during the day and night were sampled and isotopic signatures were modelled using IsoSource. Modelling indicated that: (1) mollusc veligers and copepods sampled during the day contributed <13% of the carbon to the jellyfish; (2) copepods sampled at night contributed up to 25%; and (3) the large, emergent decapod Lucifer sp. contributed 88–94%. We hypothesised, therefore, that medusae derive most of their carbon from emergent species of zooplankton. In 2006, sampling done in 2005 was repeated three times over a period of 4 weeks to measure short-term temporal variation in isotopic signatures of medusae and zooplankton, and emergent demersal zooplankton was specifically sampled using emergence traps. Short-term temporal variation in isotopic signatures was observed for some taxa, however, actual variations were small (<1.5‰) and the values of medusae and zooplankton remained consistent relative to each other. IsoSource modelling revealed that mysid shrimp and emergent copepods together contributed 79–100% of the carbon to the jellyfish, and that the maximum possible contribution of daytime copepods and molluscs was only 22%. Jellyfish apparently derive most of their carbon from emergent zooplankton and by capturing small numbers of relatively large taxa, such as Lucifer sp. or mysid shrimp. Small but abundantly captured zooplankton (such as mollusc veligers) contribute only minor amounts of carbon. Jellyfish have a major role in the transfer of carbon between benthic and pelagic food webs in coastal systems.  相似文献   

Spectroscopic properties of \hbox {Cr}^{3+} in the spinel solid solution \hbox {ZnAl}_{2-x}\hbox {Cr}_{x}\hbox {O}_4     

Louisiane Verger  Olivier Dargaud  Gwenaelle Rousse  Emese Rozsályi  Amélie Juhin  Delphine Cabaret  Marine Cotte  Pieter Glatzel  Laurent Cormier 《Physics and Chemistry of Minerals》2016,43(1):33-42

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The dependence of the galaxy luminosity function on large-scale environment     

H. J. Mo  Xiaohu Yang  Frank C. van den Bosch  Y. P. Jing 《Monthly notices of the Royal Astronomical Society》2004,349(1):205-212

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On the Melting Curve at High Pressures     

Enzo Bosch 《Geophysical Journal International》1974,37(1):45-50

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Bar-driven evolution of S0s: the edge-on galaxy NGC 4570     

Frank C. van den Bosch  & Eric Emsellem 《Monthly notices of the Royal Astronomical Society》1998,298(1):267-274

We present circumstantial evidence that the central region of the edge-on S0 galaxy NGC 4570, which harbours a 150-pc scale nuclear disc in addition to its main outer disc, has been shaped under the influence of a small (∼ 500 pc) bar. This is based on the discovery of two edge-on rings, the locations of which are consistent with the inner Lindblad and ultraharmonic resonances of a rapidly tumbling triaxial potential. Observed features in the photometry and rotation curve correspond nicely with the positions of the main resonances, strengthening the case for a tumbling bar potential. The relative blue colour of the ILR ring, and the complete absence of any detected ISM, indicates that the nuclear ring is made of relatively young (≲ 2 Gyr) stars. We discuss a possible secular evolution scenario for this complex multicomponent galaxy, which may also apply to many other S0 galaxies with observed rings and/or multiple disc components.  相似文献