广西北海涠洲岛晚更新世火山活动引起的地震同沉积变形构造
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摘要
广西北海涠洲岛晚更新世湖光岩组为一套火山碎屑沉积,同期火山岩发育。在靠近火山口的地区,湖光岩组发育一系列地震成因的同沉积变形构造,包括:地震微断裂(张扭性地震微断裂、张性地震微断裂、共扼性地震微断裂和阶梯状地震微断裂)、微褶皱纹理、落石沉陷构造和砂泥岩脉。分析认为这些同沉积—变形构造是由同期火山活动引起的地震作用形成的。
The Late Pleistocene Huguangyan Formation in Weizhou island, Beihai city, Guangxi consists of volcanic clastic rocks. Volcanic rocks develop near Huguangyan Formation. Near the crater, a series of syn-depositional deformation structures are developped in the Huguangyan Formation, which includes seismic micro-fractures(tensile-shear,tensile,conjugated and ladder fractures), micro-corrugated laminations, sinking rockfall structures and sand-muddy veins. These structures are believed resulting from earthquake related to volcanic activity of the Late Pleistocene.
The Late Pleistocene Huguangyan Formation in Weizhou island, Beihai city, Guangxi consists of volcanic clastic rocks. Volcanic rocks develop near Huguangyan Formation. Near the crater, a series of syn-depositional deformation structures are developped in the Huguangyan Formation, which includes seismic micro-fractures(tensile-shear,tensile,conjugated and ladder fractures), micro-corrugated laminations, sinking rockfall structures and sand-muddy veins. These structures are believed resulting from earthquake related to volcanic activity of the Late Pleistocene.
引文
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22吴贤涛,尹国勋.四川峨眉晚侏罗世湖泊沉积中震积岩的发现及其意义.沉积学报,1992,10(3):19～24[WuXiantaoandYin Guoxun.FeatureandsignificanceofseismitesfromUpperJurassicLa custrinedepositsofEmei,Sichuan.ActaSedimentologicaSinica,1992,10(3):19～25]
23DuY,ZhangC,HanXW,etal.EarthquakeeventdepositsinMe soproterozoicKunyangGroupincentralYunnananditsgeologicalimplications.ChinaSciences(SeriesD),2001,44(7):600～608
24DuY,etal.SilurianseismitesanditstectonicsignificanceinHanx ia,Yumencity,northQilianmountain.ActaGeologicaSinica,2001,75(4):385～390
2HeezenBC,DykeCL.GrandBankSlump.AAPGBulletin,1964,48:221～225
3SeilacherA.Fault gradedbedinterpretedasseismites.Sedimentology,1969,13(1-2):155～159
4CitaMB,RicciLucchiF.Seismicityandsedimentation.MarineGeol ogy,1984,55(1-2):1～161
5KastensKMandCitaMB.Tsunami inducedsedimenttransportsin theabyssalMediterraneanSea.GeologicalSocietyofAmericanBulle tin,Part1981,1(92):845～847
6FairchildIJ,EinseleGandSongT.Possibleseismicoriginofmolar toothstructuresinNeoproterozoiccarbonaterampdeposits,northChi na.Sedimentology,1997,44:611～630
7RoepTB,EventsAJ.Pillow beds:anewtypeofseismites?Anexam plefromanOligoceneturbiditefancomplex,Alicante.Sedimentology,1992,39:711～724
8AnandA,andJainAK.Earthquakesanddeformationalstructures(seismites)inHolocenesedimentsfromtheHimalayan-Andaman arc,India.Tectophysics,1987,133:105～120
9KleverlaanK.Gordomegabed:apossibleseismiteinaTortoniansub marinefan,Tabernasbasin,ProvinceAlmeria,southeastSpain.Sedi mentaryGeology,1987,51:165～180
10MohindraR,BagatiTN.Seismicallyindusedsoft sedimentdeforma tionstructures(seismites)aroundSumdointhelowerSpitivalley(TethysHimalaya).SedimentaryGeology,1996,101:69～83
11Boseetal.Slope controlledseismicdeformationandtectonicframe802workofdeposition:KoldahaShale,India.Tectonophysics,1997,269:151～169
12TakashimizuY,MasudaF.Depositionalfaciesandsedimentarysuc cessionsofearthquake inducedtsunamidepositsinupperPleistocene incisedvalleyfills,centralJapan.SedimentaryGeology,2000,135:231～240
13ShikiT.Seismoturbidites,seismitesandtsunamiites.Sedimentary Geology,2000,135:1～326
14宋天锐.北京十三陵前寒武纪碳酸盐岩地层中的一套可能的地震—海啸序列.科学通报,1988,Cita(8):609～611[SongTianrui.Aprobableearthquake tsunamisequenceinPrecambriancarbonate strataofMingTombsDistrict,Beijing,ChineseScienceBulletin,1988,33(13):1121～1124]
15乔秀夫,宋天锐,高林志,等.碳酸盐岩振动液化地震序列.地质学报,1994,68(1):16～32[QiaoXiufu,SongTianrui,GaoLinz hi,etal.Seismicsequenceincarbonaterocksbyvibrationalliquefac tion.ActaGeologicaSinica,1994,68(1):16～34]
16乔秀夫.中国震积岩的研究与展望.地质论评,1996,42(4):317～320[QiaoXiufu.StudyofseismitesofChinaanditsprospects.Geo logicalReview,1996,42(4):317～320]
17乔秀夫,李海兵,高林志.华北地台震旦纪—早古生代地震节律.地学前缘,1997,4(3-4):155～160[QiaoXiufu,LiHaibingand GaoLinzhi.Sinian earlyPalaeozoicseismicrhythmsontheNorthChi naplatform.EarthSciencesFrontiers,1997,4(3-4):155～160]
18乔秀夫,高林志.华北中新元古代及早古生代地震灾变事件及与Rodinia的关系.科学通报,1999,44(16):1753～1758[QiaoXiufu andGaoLinzhi.EarthquakeeventsinNeoproterozoicandearlyPalae ozoicanditsrelationshipwithsupercontinentalRodiniainNorthChi na.ChineseScienceBulletin,2000,45(10):931～935]
19梁定益,聂泽同,万晓樵.试论震积岩及震积不整合———以川西、滇西地区为例.地球科学,1991,5(2):138～147[Liang,Dingyi,NieZetong,WanXiaoqiaoandChenGuomin.Ontheseismiteand seismodisconformity—AcasestudyfromthewesternSichuanandwest ernYunnanregions.Geosciences,1991,5(2):138～147]
20梁定益,聂泽同,宋志敏.再论震积岩及震积不整合———以川西、滇西地区为例.地球科学,1994,19(6):845～850[LiangDingyi,NieZetong,SongZhimin.Arestudyonseismiteandseismodisconfor mity—AcasestudyfromthewesternSichuanandwesternYunnan.Geosciences,1994,19(6):845～850]
21孙晓猛,梁定益,聂泽同.大陆边缘震积岩序列———以金沙江中段震积岩为例.现代地质,1995,9(30):1～27[SuXiaomeng,Li angDingyi,NieZetong.Continentalmarginseismitesequence:A casestudyfromseismitesinthemiddleofJinshaRiver.ModernGeol ogy,1995,9(30):1～27]
22吴贤涛,尹国勋.四川峨眉晚侏罗世湖泊沉积中震积岩的发现及其意义.沉积学报,1992,10(3):19～24[WuXiantaoandYin Guoxun.FeatureandsignificanceofseismitesfromUpperJurassicLa custrinedepositsofEmei,Sichuan.ActaSedimentologicaSinica,1992,10(3):19～25]
23DuY,ZhangC,HanXW,etal.EarthquakeeventdepositsinMe soproterozoicKunyangGroupincentralYunnananditsgeologicalimplications.ChinaSciences(SeriesD),2001,44(7):600～608
24DuY,etal.SilurianseismitesanditstectonicsignificanceinHanx ia,Yumencity,northQilianmountain.ActaGeologicaSinica,2001,75(4):385～390
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