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:John M. Hanchar , Fernando Tornos ...
来源:[J].Mineralium Deposita(IF 2.147), 2017, Vol.52 (8), pp.1223-1244Springer
摘要:Interpretation of the mineralizing environment of magnetite-apatite deposits remains controversial with theories that include a hydrothermal or magmatic origin or a combination of those two processes. To address this controversy, we have analyzed the trace element content of...
作者:Christopher M. Fisher , Jeffery D. Vervoort , John M. Hanchar
来源:[J].Chemical Geology(IF 3.154), 2014, Vol.363, pp.125-133Elsevier
摘要:Invited Technical Paper(#br)High quality analytical data are essential for the development of sound scientific interpretations. To ensure the quality of the data published in Chemical Geology, a new type of contribution has been introduced - the "Invited Technical Paper". Wh...
作者:John M. Hanchar , Oliver Tschauner
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2016, Vol.177, pp.170-181Elsevier
摘要:Abstract(#br)The complex nature of trace element mobility in subduction zone environments is thought to be primarily controlled by fluid–rock interactions, episodic behavior of fluids released, mineral assemblages, and element partitioning during phase transformations and mi...
作者:John M. Hanchar , Oliver Tschauner
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2016, Vol.177, pp.170-181Elsevier
摘要:Abstract(#br)The complex nature of trace element mobility in subduction zone environments is thought to be primarily controlled by fluid–rock interactions, episodic behavior of fluids released, mineral assemblages, and element partitioning during phase transformations and mi...
作者:John M. Hanchar , Christopher R. Voisey ...
来源:[J].Chemical Geology(IF 3.154), 2017, Vol.466, pp.303-322Elsevier
摘要:Abstract(#br)The ore genesis of the Paleoproterozoic iron oxide apatite deposits in the vicinity of Kiruna in northern Sweden is poorly understood, despite a century-long mining history and 2500 Mt of iron ore with grades of 30 to 70 wt% Fe produced in the region to date. Zircon ...
作者:John M. Hanchar , Philip M. Piccoli ...
来源:[J].Quaternary International(IF 1.962), 2016Elsevier
摘要:Abstract(#br)The Kenya Rift Valley contains many ochre sources that are currently used by indigenous peoples for adornment, rituals, and art. Ochre pigments occur in rock art and archaeological sites spanning over 250,000 years. Chemical analysis for provenience of geological sou...
作者:Francisco Velasco , Fernando Tornos , John M. Hanchar
来源:[J].Ore Geology Reviews(IF 2.417), 2016, Vol.79, pp.346-366Elsevier
摘要:Abstract(#br)The Pliocene El Laco volcano (northern Chile) hosts a large iron oxide deposit that occurs as stratiform bodies with underlying feeder zones (dykes) hosted by hydrothermally altered andesite lava flows. Phenocrysts in the andesite hosting the mineralization have abun...
作者:... Igor M. Villa , John M. Hanchar , Richard Wirth
来源:[J].Contributions to Mineralogy and Petrology(IF 3.476), 2014, Vol.167 (5), pp.1-17Springer
摘要:Abstract(#br) K-feldspar (Kfs) from the Chain of Ponds Pluton (CPP) is the archetypal reference material, upon which thermochronological modeling of Ar diffusion in discrete “domains” was founded. We re-examine the CPP Kfs using cathodoluminescence and back-scattered electro...
作者:Igor M. Villa , John M. Hanchar
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2013, Vol.101, pp.24-33Elsevier
摘要:Abstract(#br)The significance of the multi-isotopic record preserved in K-feldspars is assessed on samples from the Aar metagranite, Central Alps, Switzerland having very tight independent geological constraints. Stepwise leaching reveals that two diachronically grown K-feld...
作者:... Oliver Jagoutz , John M. Hanchar , Francis O. Dudas
来源:[J].Earth and Planetary Science Letters(IF 4.349), 2013, Vol.366, pp.163-175Elsevier
摘要:Abstract(#br)The Himalayan orogeny, a result of the collision of India and Eurasia, provides direct evidence of strain accommodation and large-scale rheological behavior of the continental lithosphere. Knowledge of the timing of the India–Eurasia collision is essential to un...

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