Oxfordian neptunian dykes with brachiopods from the southern part of the Kraków-Częstochowa Upland (southern Poland) and their links to hydrothermal vents
Oxfordian neptunian dykes with brachiopods from the southern part of the Kraków-Częstochowa Upland (southern Poland) and their links to hydrothermal vents
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来自克拉科夫-琴斯托霍瓦高地（波兰南部）南部的带有腕足动物的牛津海王星堤坝及其与热液喷口的联系
DOI：
10.1007/s10347-016-0464-x
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发表时间：
2016
期刊：
影响因子：
1.8
通讯作者：
M. Duliński
中科院分区：
文献类型：
--
作者：
J. Matyszkiewicz;Marcin Krajewski;A. Kochman;A. Kozłowski;M. Duliński
有丰富腕足动物的海王星岩墙，参见Lacunosellasp。和棘皮动物的碎片，出现在克拉科夫-捷克高地南部的牛津石灰岩中。岩墙填充了由于位于特提斯洋北方被动边缘的沉积盆地沿着局部延伸而在块状石灰岩中打开的裂缝。这些裂缝输送了温暖的热液，控制了自由生活的细菌和微生物垫的大量生长，这些细菌和微生物垫喂养着动物群，主要是腕足动物和棘皮动物，在裂缝周围的海底定居。有一段时间，裂缝仍然是空的，它们的垂直壁被叠层石所固定。裂缝的充填是一个突然的事件，与牛津阶断层和穿过古生代基底的位错的再生有关。然后，在白垩纪，主要是在新生代，充满海王星岩墙的构造间断面被岩溶沃茨和热液渗透，使填充岩墙的碳酸盐物质部分硅化。岩墙的形成在成因上与晚侏罗世、北方大西洋和特提斯洋的打开所引起的泛欧应力场重组有关。
Neptunian dykes with abundant brachiopods, cf.Lacunosellasp. and fragments of echinoderms, occur in Oxfordian limestones in the southern part of the Kraków-Częstochowa Upland. The dykes fill fissures that have opened in the massive limestones due to local extension of the sedimentary basin located along the northern, passive margin of the Tethys Ocean. These fissures transmitted warm hydrothermal solutions that controlled the mass growth of free-living bacteria and microbial mats feeding the fauna, mostly brachiopods and echinoderms, settling the seafloor around the fissures. For some time, the fissures remained empty and their vertical walls were settled by stromatolites. Infilling of the fissures was an abrupt event related to faulting in the Oxfordian and to the rejuvenation of dislocations cutting through the Paleozoic basement. Then, in the Cretaceous, and primarily in the Cenozoic, tectonic discontinuities filled with neptunian dykes were penetrated by karst waters and by hydrothermal solutions, which partly silicified the carbonate material infilling the dykes. The formation of dykes is genetically related to the Late Jurassic, Pan-European stress-field reorganization caused by the opening of the Northern Atlantic and Tethys Oceans.