全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Christophe Hémond , Brad S. Singer
来源:[J].Quaternary Geochronology(IF 4.015), 2017, Vol.37, pp.42-54Elsevier
摘要:Abstract(#br)We have applied the unspiked K-Ar and the 40 Ar/ 39 Ar methods to samples precisely collected and localised, on both Central Indian Ridge flanks, to test their effectiveness and reliability when applied to the dating of recent (i.e. less than 1 Ma) MORBs. Twenty...
作者:Christophe Hémond , Alberto Zanetti ...
来源:[J].LITHOS(IF 3.779), 2016, Vol.248-251, pp.257-271Elsevier
摘要:Abstract(#br)The sub-continental lithospheric mantle of South America has been known for some time to carry the DUPAL isotope anomaly as seen in volcanics from the Paraná volcanic province. However, this has not allowed discriminating whether the DUPAL anomaly is a primary f...
作者:Carole Cordier , Catherine Chauvel , Christophe Hémond
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2016, Vol.189, pp.236-250Elsevier
摘要:Abstract(#br)An increasing number of geochemical studies looked for spatial organization of the isotopic variations along Pacific volcanic island chains (e.g., Hawaii, Marquesas, Samoa and Society Islands) in order to discuss the possible zoning of the plume conduits. Here, ...
作者:Christophe Hémond , René C. Maury ...
来源:[J].LITHOS(IF 3.779), 2012, Vol.146-147, pp.143-151Elsevier
摘要:Abstract(#br)Four Late Pleistocene magnesian andesites (locally called “bajaites”) from Baja California have been dated by the unspiked K–Ar method and analyzed for major, trace elements and Sr, Nd, Pb, Th and U isotopes. They display very large 230 Th excesses (50% to ...
作者:Christophe Hémond , Sarah Macleod ...
来源:[J].Geochemistry, Geophysics, Geosystems(IF 2.939), 2017, Vol.18 (7), pp.2446-2458Wiley
摘要:Abstract(#br)Using a combined approach of seafloor mapping, MAPR and CTD survey, we report evidence for active hydrothermal venting along the 130°‐140°E section of the poorly‐known South‐East Indian Ridge (SEIR) from the Australia‐Antarctic Discordance (AAD) to the...
作者:François Chabaux , Christophe Hémond , Claude J. Allègre
来源:[J].Chemical Geology(IF 3.154), 1999, Vol.153 (1), pp.171-185Elsevier
摘要:Abstract(#br)238 U– 230 Th– 226 Ra disequilibria have been determined on historical lava flows from several active volcanoes of the Lesser Antilles Arc. The data reveal significant correlations between 238 U– 230 Th and 230 Th– 226 Ra disequilibria suggesting that they ...
作者:Christophe Hémond , Jacques-André Malod ...
来源:[J].Tectonophysics(IF 2.684), 1998, Vol.298 (4), pp.297-317Elsevier
摘要:Abstract(#br)Dredgings conducted during the French–Indonesian cruises Banda Sea II and III collected volcanic rocks from several ridges of the Banda Sea area (Tukang Besi ridge, site 218; Lucipara ridge, sites 214 and 305; Nieuwerkerk–Emperor of China, sites 219 and 220). Wi...
作者:... Claire Bollinger , Christophe Hémond , Gustavo W. Bertotto
来源:[J].LITHOS(IF 3.779), 2007, Vol.99 (1), pp.45-67Elsevier
摘要:Abstract(#br)The alkali basalts of the Cerro de los Chenques quaternary backarc volcano (200 km E of the volcanic arc) carry to the surface abundant spinel-facies mantle xenoliths (lherzolites, harzburgites and dunites). The clinopyroxene geochemistry indicates that the pris...
作者:Christophe Hémond , Claire Bollinger ...
来源:[J].Journal of Volcanology and Geothermal Research(IF 2.193), 2004, Vol.143 (4), pp.293-317Elsevier
摘要:Abstract(#br)The Nuku Hiva Pliocene island (Marquesas, French Polynesia) is composed of a large half-collapsed tholeiitic shield volcano (the Tekao edifice), the caldera of which is filled up by the younger Taiohae volcano. The latter edifice is characterised by a complex magmati...
作者:Christophe Hémond , Marion Drouin ...
来源:[J].LITHOS(IF 3.779), 2007, Vol.99 (3), pp.289-311Elsevier
摘要:Abstract(#br)The present study is based on a set of lavas and crosscutting dikes collected by dives along detailed vertical transects on the northern flank of the western part of the Blanco Transform Fault, Northeast Pacific. The studied area consists of a small basin, the W...

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