Sistiana断层和Sistiana弯曲带(斯洛文尼亚西南部)

Q3 Earth and Planetary Sciences Geologija Pub Date : 2021-12-28 DOI:10.5474/geologija.2021.013
L. Placer, Petra Jamšek Rupnik, B. Celarc
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引用次数: 1

摘要

Sistiana断层是的里雅斯特湾海底Microadria的一种断裂变形。在陆地上,它只在Sistiana湾可见,但向东北方向,它很快就缩小了,从结构几何角度来看,它在穿过Dinarides的逆冲边界后不久就缩小了。再往东北,外部Dinarides仅发育弯曲带,从Sistiana湾一直延伸到Idrija-žiri地区。我们将其命名为Sistiana弯曲区。其方向可根据地质图确定,约为60°,因此我们得出结论,Sistiana断层应大致沿该方向延伸。在弯曲带中,的里雅斯特-科门背斜、维帕瓦向斜、与Hrušica Nappe相对的Trnovo Nappe以及Raša和Idrija断层横向弯曲。该弯曲的大小是Sistiana湾中最大的,并且在东北偏东方向上呈线性减小。总体地质情况表明,Sistiana断层最近并不活跃。
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The Sistiana Fault and the Sistiana Bending Zone (SW Slovenia)
The Sistiana Fault is an alleged disjunctive deformation of Microadria in the sea bottom of the Gulf of Trieste. Onshore, it is visible only in the Sistiana Bay, but towards the northeast it soon pinches-out, in structural-geometric terms it diminishes soon after the crossing of the thrust boundary of the Dinarides, or the Istrian-Friuli Underthrustig Zone, respectively. Further to the northeast, only the bending zone is developed in the External Dinarides, which stretches all the way from the Sistiana Bay to the Idrija-Žiri area. We named it the Sistiana Bending Zone. Its direction can be determined based on geological maps and is around 60°, so we conclude that the Sistiana Fault should extend approximately in this direction. In the bending zone, the Trieste-Komen Anticlinorium, the Vipava Synclinorium, the Trnovo Nappe opposite to the Hrušica Nappe and the Raša and Idrija Faults are laterally bent. The size of the bend is the largest in the Sistiana Bay, and in the east-northeast direction it decreases linearly. The general geological circumstances suggest that the Sistiana Fault has not been recently active.
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来源期刊
Geologija
Geologija Earth and Planetary Sciences-Geophysics
CiteScore
1.00
自引率
0.00%
发文量
10
审稿时长
10 weeks
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