The structural architecture of the footwall to the main Uralian fault, southern Urals

被引:49
作者
Brown, D [1 ]
Puchkov, V [1 ]
AlvarezMarron, J [1 ]
PerezEstaun, A [1 ]
机构
[1] RUSSIAN ACAD SCI,UFIMIAN GEOSCI CTR,UFA 450001,RUSSIA
关键词
D O I
10.1016/0012-8252(95)00051-8
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The Uralide orogen is a linear collisional belt formed during the Upper Paleozoic as a result of convergence between the East European Craton and outboard terranes, and accretion of intervening island arcs and obduction of oceanic crust onto the East European Craton. This paper presents a new structural subdivision of the southern Urals, to the west of the main suture zone, that puts this part of the mountain belt in a context similiar to that of other collisional orogenic belts. This subdivision consists of a west-vergent thrust stack that is made up of an autochthonous to parautochthonous foreland basin, and a parautochthonous foreland thrust and fold belt, flanked to the east by a metamorphic thrust stack. The latter units are structurally overlain by allochthonous rocks of an accretionary complex, slope sediments, oceanic crust and high grade, eclogite-blueschist-bearing, gneiss. Where possible these units are defined on the basis of their internal stratigraphy and structure and on the nature of their bounding faults.
引用
收藏
页码:125 / 147
页数:23
相关论文
共 72 条
  • [1] ALEXSEEV AA, 1984, RIPHEAN VENDIAN MAGM
  • [2] BASIN EVOLUTION WITHIN AND ADJACENT TO THE TIEN-SHAN RANGE, NW CHINA
    ALLEN, MB
    WINDLEY, BF
    ZHANG, C
    ZHAO, ZY
    WANG, GR
    [J]. JOURNAL OF THE GEOLOGICAL SOCIETY, 1991, 148 : 369 - 378
  • [3] Allen P.A, 1990, BASIN ANAL PRINCIPLE, V1st
  • [4] [Anonymous], GEOTEKTONIKA
  • [5] OROGENY AND STRATIGRAPHY - NUMERICAL-MODELS OF THE PALEOZOIC IN THE EASTERN INTERIOR OF NORTH-AMERICA
    BEAUMONT, C
    QUINLAN, G
    HAMILTON, J
    [J]. TECTONICS, 1988, 7 (03) : 389 - 416
  • [6] BOGOYAVLENSKAYA OV, 1983, STANDARD SECTIONS MI
  • [7] BOYER SE, 1982, AAPG BULL, V66, P1196
  • [8] EMPLACEMENT OF FORELAND THRUST SYSTEMS
    CELLO, G
    NUR, A
    [J]. TECTONICS, 1988, 7 (02) : 261 - 271
  • [9] CHESNOKOV BV, 1965, DOKL AKAD NAUK SSSR, V162, P176
  • [10] CHIBRIKOVA YV, 1994, FINDS ACRITARCHS MET