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Dinosaur extinction not caused by volca erupon study

作者:admin 来源:未知 更新日期:2020-01-23 浏览次数:

  
 

   AninternationalteamledbyresearcherswithYaleUniversityhasfoundthatvolcanicactivitydidn,publishedthisweekinthejournalScience,showedthatenvironmentalimpactsfrommassivevolcaniceruptionsinIndiaintheregionknownastheDeccanTrapshappenedbeforethedinosaurextinctionevent6apsmayhavecontributedtothemassextinctionevent."Volcanoescandrivemassextinctionsbecausetheyreleaselotsofgases,likeSO2andCO2,thatcanaltertheclimateandacidifytheworld,"saidPincelliHull,thestudysleadauthorandanassistantprofessoratYale."Butrecentworkhasfocusedonthetimingoflavaeruptionratherthangasrelease."Theycomparedglobaltemperaturechangeandthecarboniso,ventofabouttwodegrees,,anumberofspeciesmovedtowardtheNorthandSouthpolesbutmovedbackwellbeforetheasteroidimpact,accordingtothestudy.。

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