%0 Journal Article
%T TheDeepStructureFeatureoftheSichuanBasinandAdjacentOrogens
%A XIONG
%A Xiaosong
%A GAO
%A Rui
%A *GUO
%A Lianghui
%A WANG
%A Haiyan
%A and
%A JIANG
%A Zhuwei
%J µØÖÊѧ±¨
%P 1153-1164
%D 2015
%X Thebasin-mountainsystemintheSichuanBasin(SCB)reflectsthemaintectonicactivityandtheorogenicdenudationinthisregion.Theseismicprobingworkrevealsthedeepstructureofthebasin-mountainsystem.Theseismicworkwasre-sampledtotheMohodepthandthesedimentarythicknessaswellastheP-wavevelocity-depthfunctiontoanalyzethedeepstructureoftheSCBandadjacentorogens.TheresultsshowtwodepositcentersintheSCB:theDeyangareainthewestandtheNanchuanareaintheeastanddepressionupliftexistsinthesouthwesternpartoftheSCB;theMohoshallowersgraduallyfromthewesttoeast(ca.62-36kmdeep),theSouth-Northseismicbelt(SNSB)isverydistinctive:theMohodepthismuchshallower(<50km)totheeastoftheSNSB,whereasitismuchdeeper(>50km)tothewestoftheSNSB,suggestingthattheSNSBratherthantheLongmenShantectonicbeltisamainMohotransitionbelt;thetopographyandthetopinterfaceofthebasementhavethesameundulationtrendwhenthesedimentarythicknessandtheMohodepthhaveamirrorrelationship;thelowvelocityzonedevelopedintheKangdianthrustandfoldbeltandSongpan-Garz¨ºbeltimpliedasoft,weakandthickcrustthereshowingtectonicactivityintheseareas.
%K Sichuanbasin
%K basin-rangecontactzone
%K deepstructure
%K topinterfaceofbasement
%K Mohodepth
%U http://www.geojournals.cn/dzxb/ch/reader/view_abstract.aspx?file_no=201504007&flag=1