文章基本信息

标题：Fluid pathways within shallow-generated damage zones of strike-slip faults – evidence of map-scale faulting in a continental environment, SW Permo-Mesozoic cover of the Late Palaeozoic Holy Cross Mountains Fold Belt, Poland
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作者：Barbara Rybak-Ostrowska ; Andrzej Konon ; Vratislav Hurai 等
期刊名称：Acta geologica Polonica
印刷版ISSN：0001-5709
出版年度：2020
卷号：70
期号：1
页码：1-29
DOI：10.24425/agp.2019.126454
语种：English
出版社：Institute of Geology, University of Warsaw
摘要：The damage zones of exhumed strike-slip faults dissecting Jurassic carbonates in the south-western part of the Late Palaeozoic Holy Cross Mountains Fold Belt reveal second-order faults and fractures infilled with syntectonic calcite. The subsequent development of a structural pattern of microscopic fault-related structures and calcite infillings reflects the activity of strike-slip faults that began in the Late Cretaceous (Late Maastrichtian) and lasted until the early Miocene (Langhian). The fabric of the syntectonic veins provides insights into the evolution of the permeable fault-related structures that were the main pathways for fluid flow during fault activity. Microstructural study of calcite veins coupled with stable isotope and fluid inclusion data indicates that calcite precipitated primarily in a rock-buffered system related to strike-slip fault movement, and secondarily in a partly open system related to the local activity of the releasing Chmielnik stepover or the uplift of the area. The presence of meteoric fluids descending from the surface into damage zones suggest that the strike-slip faulting might have taken place in a nonmarine, continental environment.
关键词：Strike-slip faulting;Fluid pathways;Continental environment;Chmielnik releasing stepover;Permo-Mesozoic cover;Holy Cross Mountains Fold Belt