Comment on Rosenberg and Garcia: Estimating displacement along the Brenner Fault and orogen-parallel extension in the Eastern Alps, Int J Earth Sci (Geol Rundsch) (2011) 100:1129–1145

Comment on Rosenberg and Garcia: Estimating displacement along the Brenner Fault and orogen-parallel extension in the Eastern Alps, Int J Earth Sci (Geol Rundsch) (2011) 100:1129–1145
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对 Rosenberg 和 Garcia 的评论:估计沿布伦纳断层的位移和东阿尔卑斯山的造山带平行延伸,Int J Earth Sci (Geol Rundsch) (2011) 100:1129–1145

DOI:
10.1007/s00531-011-0725-4
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发表时间:
2012
影响因子:
2.3
通讯作者:
S. Schmid
S. Schmid
中科院分区:
地球科学3区
文献类型:
--
作者:
B. Fügenschuh;N. Mancktelow;S. Schmid

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陶恩窗的西端以我们所说的布伦纳正断裂带为标志。自80年代末以来,布伦纳断层被认为是正常断层的教科书范例。早在1934年,Dunner就提出了与下盘隆起(即陶恩窗)有关的西向正断层。这些早期的出版物(如Schmidegg 1953)主要集中在一个被称为Silltal断层的脆性正断层上,该断层代表了Brenner正断裂带的北段。Behrmann(1988)和Selverstone(1988)也首次描述了更南边的一个地区的正断层的韧性成分,称为斯特金-施泰纳赫糜棱岩带(Behrmann)或布伦纳线(Selverstone)。(1997),Fugenscheh et al.提出了布伦纳正断裂带演化的两阶段模型。因此,韧性正断层活动在第一阶段被限制在斯特金和马特雷之间的区域(称为布伦纳正断层s.str)。在这一贡献中),虽然在第二阶段的脆性断层不仅叠加了布伦纳线s.str的早期糜棱岩。而是进一步向北延伸到完全脆弱的西尔塔尔断层。该模型在第一阶段涉及同时代的北S挤压和东西向伸展。根据变质数据和不同的下盘和上盘折返历史以及整个断裂带的估计倾角,已发表的相关东西向伸展的总量在10到20公里(例如Behrmann 1988)到70公里(例如Fugenscheh等人)之间变化很大。1997年)。同时代的N-S挤压作用导致的剥蚀折返作用,到目前为止还没有明确的考虑和计算。
The western end of the Tauern window is marked by what we refer to as the Brenner Normal Fault Zone. The Brenner Fault—since the late eighties—is known as a textbook example of a normal fault. Already in (1934), Dunner proposed west-directed normal faulting related to updoming of the footwall (i.e. the Tauern window). These earlier publications (e.g. Schmidegg 1953) mainly focussed on a brittle normal fault known as Silltal Fault that represents a northern segment of the Brenner Normal Fault Zone. Behrmann (1988) and Selverstone (1988) were the first to also describe ductile components of normal faulting in an area further south, referred to as Sterzing-Steinach mylonite zone (Behrmann) or Brenner line (Selverstone). In (1997), Fugenschuh et al. presented a two-stage model for the evolution of the Brenner Normal Fault Zone. Thereby ductile normal faulting was restricted to an area between Sterzing and Matrei during stage 1 (referred to as Brenner Normal Fault s.str. in this contribution), while brittle faulting during stage 2 not only overprinted the earlier mylonites of the Brenner line s.str. but extended further north into the entirely brittle Silltal Fault. This model involved coeval N–S compression and E–W extension during stage 1. The published calculated total amounts of related E–W extension, derived from metamorphic data and distinct exhumation histories in footwall and hanging wall and from the estimated dip of the overall fault zone, varied significantly between 10 and 20 km (e.g. Behrmann 1988) and up to 70 km (e.g. Fugenschuh et al. 1997). The contribution of exhumation by erosion as a consequence of coeval N–S compression has never been explicitly considered and calculated so far.
估计沿布伦纳断层和东阿尔卑斯山造山带平行延伸的位移
DOI: 10.1007/s00531-011-0645-3
发表时间: 2011
影响因子: 2.3
作者:
Rosenberg;Garcia
通讯作者: Garcia