%0 Journal Article
%T PaleozoicTectono-MetallogenyintheTianshan-AltayRegion,CentralAsia
%A WAN
%A Tianfeng*
%A ZHAO
%A Qingle
%A and
%A WANG
%A Qianqian
%J µØÖÊѧ±¨
%P 1120-1132
%D 2015
%X TheresearchonPaleozoictectonicsandendogenicmetallogenyintheTianshan-AltayregionofCentralAsiaisanimportantandsignificantproject.TheAltayregion,asacollisionzoneoftheEarlyPaleozoic(500£¿397Ma),andtheTianshanregion,asacollisionzoneoftheearlyperiodintheLatePaleozoic(LateDevonian-EarlyCarboniferous,385£¿323Ma),arealltheresultofnearlyN-Strendingshorteningandcollision(accordingtorecentmagneticorientation).IntheLateDevonian-EarlyCarboniferousperiod(385£¿323Ma),regionalNWtrendingfaultsdisplayedfeaturesofdextralstrike-slipmotionintheAltayandJunggarregions.IntheTianshanregion,nearlyEW-trendingregionalfaultsaremotionsofthethrusts.However,intheLateCarboniferous-EarlyPermianperiod(323£¿260Ma),influencedbythelong-distanceeffectinducedfromtheUralcollisionzone,thoseareassufferedweakereastwardcompression,theexistingNWtrendingfaultsconvertedintosinistralstrike-slipintheAltayandJunggarregions,andtheexistingnearlyE-Wtrendingfaultstransferredintodextralstrike-slipfaultsintheTianshanregion.TheRocksofthoseregionsintheLateCarboniferous-EarlyPermianperiod(323£¿260Ma)weremoderatelyrupturedtoacertaintension-shear,andthusformedanumberofworldfamousgiantendogenicmetaloredepositsintheTianshan-Altayregion.AstotheCentralAsiancontinent,themostpowerfulcollisionperiodmaynotcoincidewiththemostfavorableendogenicmetallogenicperiod.Itshouldbetreatedto¡°theorogenicmetallogenyhypothesis¡±withcautioninthatregion.
%K tectonics
%K endogenicmetallogeny
%K longdistanceeffect
%K Tianshan-Altayregion
%U http://www.geojournals.cn/dzxb/ch/reader/view_abstract.aspx?file_no=201504005&flag=1