Received date: 1999-09-23
Revised date: 1999-11-26
Online published: 2000-08-01
Earthquake is a disaster event in Earth crust. Earthquake, tsunami and turbidity flow induced by earthquake can form seismites, tsunamites and seismoturbidites. During earthquake, some especial deformation structures (fracture-grading bed, fracture-uniform bed, syn-sedimentary microfracture,micro-corrugated lamination, gravity faultetc.) and sedimentary and diagenitic structure (sandstone vein,mudstone vein, micritic vein, i.e. molar tooth structure, pillow bed, sandy volcano, muddy volcano,penecontemporneous deformation structures and hummocky bedding) are formed. Seism-deposits consist of 3 types of sedimentary units. Unit-A is autochthonous seismites, which consists of seismic corrugated rock, shattering rock, and autoclastic breccia and intraclast parabreccia. Unit-B is tsunamite, which is
composed of pebble sandstone, sandstone and intraclastic limestone with hummocky bedding or swaley bedding and parallel bedding. Unit-C is seismoturbidites or megaturbidite, which is composed of coarse clastics and intraclastic limestone with massive bedding, graded bedding or Bouma sequence. Aforesaid units and background deposits (Unit 4) constitute 6 types of sedimentary sequences: A-B-C-D、A-B-D、A-C-D、A-D、B-D、C-D.
Key words: Sedimentology; Earthquake; Seaquake; Tsunami; Tsunamites; Seismoturbidites.
DU Yuan-sheng, HAN Xin . SEISMO-DEPOSITION AND SEISMITES[J]. Advances in Earth Science, 2000 , 15(4) : 389 -394 . DOI: 10.11867/j.issn.1001-8166.2000.04.0389
[1]Heezen B C, Ewing M. Turbidity currents and submarine slumps and 1929 Grand bank earthquake[J]. Am J Sci, 1952,250(12): 849~873.
[2]Heezen B C, Dyke C L. Grand bank Slump[J]. Bull Am Ass Petrol Geol, 1964, 48(2):221~225.
[3]Seilacher A. Fault-graded bed interpreted as seismites[J].Sedimentoloy, 1969, 13(1~2): 155~159.
[4]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[J].科学通报,1988,(8):609~611.
[5]乔秀夫,宋天锐,高林志,等.碳酸盐岩振动液化地震序列[J].地质学报,1994, 68(1):16~32.
[6]乔秀夫,李海兵,高林志.华北地台震旦纪—早古生代地震节律[J].地学前缘,1997,4(3~4):155~160.
[7]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[J].科学通报,1999,44(16):1 753~1 758.
[8]Mutti E, Ricci Lucchi F, Seguret M,et al. Seismoturbidites:a new group of resedimented deposits[J]. Mar Geol, 1984, 55(1~2): 103~116.
[9]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[J].地球科学,1994, 19(6):845~850.
[10]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[J].现代地质, 1995,9(3):1~27.
[11]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[J].沉积学报,1992, 10(3):19~24.
[12]杜远生,张传恒,韩欣.滇中地区中元古代大龙口组震积岩的新发现[J].地球科学,1999,24(增刊):28,97.
[13]南凌,崔之久.地震混杂岩(震积岩)的沉积特征和识别[J].地震地质译丛,1996, 18 (6):1~9.
[14]杨景春,闻学泽.史前地震及其鉴别标志的几个问题[A].见:中国第四纪研究委员会全新世分会和陕西省地震局编.史前地震与第四纪地质文集[C].西安:陕西科学技术出版社,1982.8~15.
[15]朱海之.古地震活动若干标志的研究[A].见:中国第四纪研究委员会全新世分会,陕西省地震局编.史前地震与第四纪地质文集[C].西安:陕西科学技术出版社,1982.17~29.
[16]冯先岳,宋和平.新疆古地震遗迹鉴别标志[A].见:中国第四纪研究委员会全新世分会和陕西省地震局编.史前地震与第四纪地质文集[C].西安:陕西科学技术出版社,1982.43~50.
[17]Seilacher A. Sedimentary structures tentatively attributed to seismic events[J]. Mar Geol,1984, 55(1):1~12.
[18]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[J].现代地质,1991, 5(2):138~147.
[19]Cita M B, Beghi C, Camerlenghi A,et al. Turbidites and megaturbidites from the Herodotus abyssal plain (eastern Mediterranean) unrelated to seismic events[J]. Mar Geol,1984, 55(1~2):79~101.
[20]Fairchild I J, Einsele G, Song T. Possible seismic origin of molar tooth structures in Neoproterozoic carbonate ramp deposits, north China[J]. Sedimentology, 1997, 44(4):611~630.
[21]Frank T D, Lyons T W.“Molar-tooth”structures, a geo chemical perspective on a Proterozoic enigma[J]. Geology,1998, 26(8): 683~686.
[22]Spallctta C, Vai G B. Upper Devonian intraclast parabreccias interpreted as seismites[J]. Mar Geol, 1984, 55(1~2):133~144.
[23]Roep T B, Events A J. Pillow-beds: a new type of seismites? An example from an Oligocene turbidite fan complex,Alicante[J]. Sedimentology, 1992, 39:711~724.
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