Integrated geophysical and geological methods to investigate the inner and outer structures of the Quaternary Mýtina maar (W-Bohemia, Czech Republic)
Integrated geophysical and geological methods to investigate the inner and outer structures of the Quaternary Mýtina maar (W-Bohemia, Czech Republic)
复制标题
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
DOI:
10.1007/s00531-014-1136-0
复制
发表时间:
2015
影响因子:
2.3
通讯作者:
Seidel
中科院分区:
文献类型:
--
作者:
Flechsig;Heinicke;Mrlina;Kämpf;Nickschick;Schmidt;Günther;Rücker;Seidel
The Mýtina maar is the first known Quaternary maar in the Bohemian Massif. Based on the results of Mrlina et al. (J Volcanol Geother Res 182:97–112, 2009), a multiparametric geophysical (electrical resistivity tomography, gravimetry, magnetometry, seismics) and geological/petrochemical research study had been carried out. The interpretation of the data has provided new information about the inner structure of the volcanic complex: (1) specification of the depth of post-volcanic sedimentary fill (up to ~100 m) and (2) magnetic and resistivity signs of one (or two) hidden volcanic structures interpreted as intrusions or remains of a scoria cone. The findings at the outer structure of the maar incorporate the (1) evidence of circular fracture zones outside the maar, (2) detection and distribution of volcanic ejecta and tephra-fall deposits at the surface, and (3) indications from electrical resistivity tomography and gravity data in the area between the Mýtina maar and Železná hůrka scoria cone, interpreted as a palaeovalley, filled by volcaniclastic rocks, and aligned along the strike line (NW–SE) of the Tachov fault zone. These findings are valuable contributions to extend the knowledge about structure of maar volcanoes in general. Because of ongoing active magmatic processes in the north-east part of the Cheb Basin (ca. 15–30 km north of the investigation area), the Mýtina maar-diatreme volcano and surroundings is a suitable key area for research directed to reconstruction of the palaeovolcanic evolution and assessment of possible future hazard potential in the Bohemian Massif.
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DOI:
--
发表时间:
1974
期刊:
影响因子:
--
作者:
W. J. Phillips
通讯作者:
W. J. Phillips
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
G. Valentine;J. White
通讯作者:
J. White
影响因子:
3.5
作者:
J. Ulrych;J. Dostal;J. Adamovič;E. Jelínek;P. Spacek;E. Hegner;K. Balogh
通讯作者:
K. Balogh
影响因子:
3.9
作者:
H. Kämpf;K. Bräuer;J. Schumann;K. Hahne;G. Strauch
通讯作者:
H. Kämpf;K. Bräuer;J. Schumann;K. Hahne;G. Strauch
影响因子:
3.5
作者:
Schmidt;Nowaczyk;Kämpf;Schüller;Flechsig
通讯作者:
Flechsig