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:Hervé Guillou , 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 s...
作者:Hamou Djellit , Hervé Bellon , Aziouz Ouabadi ...
来源:[J].Comptes rendus - Géoscience(IF 1.401), 2006, Vol.338 (9), pp.624-631Elsevier
摘要:... 40 K/ 40 Ar dating of separated feldspars and whole rock for one sample and of whole rock for two other samples give a mean age of 347.6 ± 16.2 Ma (at the 2- σ level), thus corresponding to a Lower Carboniferous (Tournaisian) age. Taking into...
作者:H. Huckriede , K. Wemmer , H. Ahrendt
来源:[J].International Journal of Earth Sciences(IF 2.261), 2004, Vol.93 (3), pp.414-431Springer
摘要:... 40 K/ 40 Ar dating of detrital muscovites proved to be a particularly useful method because Cadomian, Caledonian and Early Variscan provenances of detrital material can be distinguished. Cadomian muscovite cooling ages are restricted to allochthonous units whereas Caledo...
作者:冯金良 , 崔之久 , 张威 ...
来源:[J].海洋地质与第四纪地质, 2003, (03), pp.45-54CNKI
摘要:以野外剖面调查为基础,结合物理学、地球化学、矿物学和同位素年代学手段和方法,对云贵高原红土性风化壳中可资定年的对象———锰结核的产出状态、内部构造、地球化学特征、矿物组成及锰结核全岩的40K/40Ar...
被引频次:22下载频次:204
作者:C. Monnier , J. Girardeau , M. Pubellier ...
来源:[J].Mineralogy and Petrology(IF 1.681), 1999, Vol.65 (1-2), pp.1-28Springer
摘要:...(#br)New 40 K/ 40 Ar isotopic ages obtained from the back-arc basin basalts (BABB - 29 Ma) and boninites (43 Ma) combined with the geochemical signatures of the rocks studied here, indicate that the Cyclops Mountains may have formed in a single suprasubduction environment. Thi...
作者:Reynaldo Charrier , AndréR. Wyss , John J. Flynn ...
来源:[J].Journal of South American Earth Sciences(IF 1.533), 1996, Vol.9 (5), pp.393-422Elsevier
摘要:... Las dataciones radioisotópicas 40 K 40 Ar y 40 K 40 Ar indican una edad Eoceno más alto (37,5 Ma) a Oligoceno inferior (31,5 Ma) para la parte inferior de la formatión y la fauna fósil contenida en ella. 2) Los depósitos terciarios fosilíferos se apoyan con discordanci...
作者:Jan Wijbrans , Björn Schneider , Klaudia Kuiper ...
来源:[J].Quaternary Geochronology(IF 4.015), 2010, Vol.6 (2), pp.223-232Elsevier
摘要:... Even when reliable data are available, it is important to have independent corroboration of inferred chronologies as can be obtained in principle using the 40 K/ 40 Ar decay system. Here we present results of a 40 Ar/ 39 Ar dating study of basaltic groundmass in the produc...
作者:Norbert Clauer , Horst Zwingmann , Nicole Liewig ...
来源:[J].Earth-Science Reviews(IF 7.339), 2012, Vol.115 (1-2), pp.76-96Elsevier
摘要:Abstract(#br)The 40 K/ 40 Ar (KAr) and 40 Ar/ 39 Ar dating methods are applied here to the same, very small, micrometric illite-type particles that crystallized under low-temperature (< 175 °C) hydrothermal conditions in deeply buried Rotliegend (Permian) gas-bearing san...
作者:M. Watanabe , K. Hoshino , H. Kagami ...
来源:[J].Mineralium Deposita(IF 2.147), 1998, Vol.34 (1), pp.113-120Springer
摘要:Abstract(#br) Samples from metamorphosed pillowed basalts and related Besshi-type deposits occurring in the Sanbagawa belt of the Shikoku Island, southwest Japan, have been analyzed for 87 Sr/ 86 Sr, 143 Nd/ 144 Nd and 40 K/ 40 Ar. This is to investigate the tectonic setting...
作者:S. Charbit , H. Guillou , L. Turpin
来源:[J].Chemical Geology(IF 3.154), 1998, Vol.150 (1), pp.147-159Elsevier
摘要:Abstract(#br)We have developed an analytical procedure to intercalibrate the 40 Ar content of 40 Ar / 39 Ar and 40 K / 40 Ar standard minerals. This procedure is based on an unspiked volumetric standardisation method developed for KAr dating. Argon extracted from independen...

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