Emplacement History of the Miocene Zebín Tuff Cone (Czech Republic) Revealed From Ground Geophysics, Anisotropy of Magnetic Susceptibility, Paleomagnetic, and 40Ar/39Ar Geochronology Data
Emplacement History of the Miocene Zebín Tuff Cone (Czech Republic) Revealed From Ground Geophysics, Anisotropy of Magnetic Susceptibility, Paleomagnetic, and 40Ar/39Ar Geochronology Data
复制标题
地面地球物理学、磁化率各向异性、古地磁和 40Ar/39Ar 地质年代学数据揭示了中新世 Zebín 凝灰岩锥（捷克共和国）的就位历史
DOI：
10.1029/2017gc007324
复制
发表时间：
2018
期刊：
影响因子：
3.7
通讯作者：
P. Tábořík
中科院分区：
文献类型：
--
作者：
M. Petronis;J. Valenta;V. Rapprich;J. Lindline;M. Heizler;B. Wyk de Vries;S. Shields;J. Balek;L. Fojtíková;P. Tábořík
捷克共和国的Zebín火山是一个开采的凝灰岩锥，它提供了了解岩浆通过火山碎屑锥输送的侵位过程及其发展过程的机会。进行了高分辨率地面磁力测量、电阻率层析成像和折射地震，以补充火山系统大小、形状和内部结构的现场测绘。泽宾火山产出正常极性的岩石，火山锥下方是一个复杂的分支岩浆补给系统，有几个分叉的岩脉。在24个地点采集样品，从馈线堤防和主要管道的磁化率和古地磁分析的各向异性。磁化率结果的各向异性产生推断的岩浆流动方向，指示近水平岩浆流向和远离轴向通道，以及向上和向下流动。所有站点的古地磁数据是正常极性与统计学上不同的剩磁方向之间的一些网站，这表明显着的时间过去或变形发生在这个火山系统的增长。40 Ar/39 Ar等时线年龄分别为18.38 ± 0.03和18.45 ± 0.03 Ma，角砾岩的加权平均年龄为18.52 ± 0.03 Ma，提供了火山喷发的年龄。我们认为，泽宾火山演变从一个多相馈电系统，并通过一个复杂的馈线网络。这项详细的研究表明，许多单成因火山值得非常详细的研究，因为它们的微妙之处可以提供更广泛的地壳和岩浆环境在岩浆作用。
The Zebín Volcano, Czech Republic, is a quarried tuff cone that offers the opportunity to understand emplacement processes responsible for magma transport through a pyroclastic cone and magmatic processes involved in its development. A high‐resolution ground magnetometry survey, electrical resistivity tomography, and refraction seismic were conducted to supplement field mapping of the size, shape, and inner structure of the volcanic system. The Zebín Volcano yields normal polarity rocks, and the cone is underlain by a complex and branching magma feeder system with several diverging dikes. Samples were collected at 24 sites from feeder dikes and the main conduit for anisotropy of magnetic susceptibility and paleomagnetic analysis. Anisotropy of magnetic susceptibility results yield inferred magma flow directions indicating subhorizontal magma flow toward and away from the axial conduit as well as both upward and downward flow. Paleomagnetic data from all sites are normal polarity with statistically distinct remanence directions between some sites that indicate that significant time passed or deformation occurred during the growth of this volcanic system. 40Ar/39Ar isochron ages of groundmass provide emplacement ages of 18.38 ± 0.03 and 18.45 ± 0.03 Ma, whereas a weighted mean date of 18.52 ± 0.03 Ma for hornblende provides an eruption age. We argue that the Zebín Volcano evolved from a polyphase feeding system and through a complex feeder network. This detailed study shows that many monogenetic volcanoes deserve highly detailed study, as their subtleties can provide insight into broader crustal and magmatic environment during magmatism.
登录
查看更多内容
德国西萨克森州埃伯斯布伦大区磁异常的起源
影响因子：
3.5
作者：
Schmidt;Nowaczyk;Kämpf;Schüller;Flechsig
通讯作者：
Flechsig
综合地球物理和地质方法研究第四纪 Mátina maar（捷克共和国西波希米亚）的内部和外部结构
影响因子：
2.3
作者：
Flechsig;Heinicke;Mrlina;Kämpf;Nickschick;Schmidt;Günther;Rücker;Seidel
通讯作者：
Seidel
影响因子：
3.5
作者：
Bernhard Mayer;Bernhard Mayer;Stefan Jung;Rolf L. Romer;J. Pfänder;A. Klügel;Andreas Pack;E. Gröner
通讯作者：
Bernhard Mayer;Bernhard Mayer;Stefan Jung;Rolf L. Romer;J. Pfänder;A. Klügel;Andreas Pack;E. Gröner
中欧埃格尔裂谷裂谷和裂谷侧翼碱性熔岩源成分和岩石成因的空间变异性
影响因子：
3.9
作者：
Regelous;Rapprich
通讯作者：
Rapprich