The role of mafic magmatism in age specification of Devonian continental trough deposits: evidence from the Minusa Basin, western Siberia, Russia

Fedoseev GS

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The role of mafic magmatism in age specification of Devonian continental trough deposits: evidence from the Minusa Basin, western Siberia, Russia

机译：镁铁质岩浆作用在泥盆纪大陆槽沉积年龄特征中的作用：来自西伯利亚西部米努萨盆地的证据

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IntheDevoniantheMinusaIntermountainTrough(Basin)ofSiberiarepresentedariftstructurethatwasfilledwithrockswhichnowoccurasstrata-likebodiesinterpretedtobeofvolcanicorigin.Thecharacterofthemaficrocksincludingtheiruppercontactsandgeochronologicaldating,usingRb/Sr,40Ar/39Ar,andU/Pbmethods,suggeststheirsillorsubvolcanicnature.Porphyryanddoleritesillsandbasaltformedlater(385-405Mya)thanfelsicandandesiticvolcanicrocks(402-448Mya).Becausethesebodieswereearlierconsideredasvolcanicflows,itisimportanttorevisethegeologicalsuccessionoftheDevonianformationsdominatedbymaficigneousrocks

机译：IntheDevoniantheMinusaIntermountainTrough（盆）ofSiberiarepresentedariftstructurethatwasfilledwithrockswhichnowoccurasstrata-likebodiesinterpretedtobeofvolcanicorigin.Thecharacterofthemaficrocksincludingtheiruppercontactsandgeochronologicaldating，usingRb / SR，的40Ar / 39Ar定，和U / Pbmethods，suggeststheirsillorsubvolcanicnature.Porphyryanddoleritesillsandbasaltformedlater（385-405Mya）thanfelsicandandesiticvolcanicrocks（402-448Mya）.Becausethesebodieswereearlierconsideredasvolcanicflows，itisimportanttorevisethegeologicalsuccessionoftheDevonianformationsdominatedbymaficigneousrocks

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《Bulletin of geosciences》 |2008年第4期|共页
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7. The role of mafic magmatism in age specification of Devonian continental trough deposits: evidence from the Minusa Basin, western Siberia, Russia [O] . Fedoseev G S 2008

机译：镁铁质岩浆作用在泥盆纪大陆槽沉积年龄特征中的作用：来自俄罗斯西伯利亚米努萨盆地的证据

The role of mafic magmatism in age specification of Devonian continental trough deposits: evidence from the Minusa Basin, western Siberia, Russia

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