Marmarosh massif in Ukraine and holy cross mountains in Poland – the rootless allochthonous tectonic structures
Journal Title: Геодинаміка - Year 2014, Vol 17, Issue 2
Abstract
Objective: The objective of this study is the investigation of the geological structure of the unique Holy Cross Mountains, located at the territory of Poland and also the unique area of the Marmarosh Massif in Ukraine, whose geodynamic conditions of forming have been studied by the authors earlier. Methods: Based on literature sources the geological structure of the Holy Cross Mountains and surrounding territories, stratigraphic occurrence of deposits, their lithological characteristics and tectonic setting have been considered. Results of investigations: Paleozoic deposits of the Holy Cross Mountains have more similarity with the Paleozoic rocks of Scandinavia and Great Britain, that is with the deposits of the margin of the East- European platform, than with the Paleozoic deposits of the closer located territories. Extension of Cambrian deposits to the territory of the Polish lowland is not confirmed. Ordovician deposits are correlated in detail with the classic British and Scandinavian sections. On the base of paleomagnetic and paleontological data Polish investigators highlight the close vicinity in Early Ordovician of the Holy Cross Mountains and the margin of Baltica. The special attention attracts the existence of crystalline rocks (ophiolites) in Cambrian, Silurian and Devonian. These are the diabase intrusions with width from 20 cm to 40 m in the middle of Cambrian, Silurian and Devonian rocks, formed during the Caledonian tectogenesis and formation of which in the present location of the mountains it is impossible to substantiate. Based on a comparison with the similar phenomenon of the ophiolites occurrence in the Marmarosh Massif as well as the revealing of the impossibility of forming of the Holy Cross Mountains in their present-day location, their rootless allochthonous development, resulting from shifting southwards during the huge phase of the Alpine folding at the Paleogene-Neogene boundary, is stated. In Miocene in the region of the Holy Cross Mountains already in their present-day location the marine terrigenous molasse has deposited, forming the so called “bays”. Scientific novelty: the Holy Cross Mountains are the rootless allochthonous tectonic structure, thrust southwards during the Alpine folding at the Paleogene-Neogene boundary. Practical value: In the underthrust of the Holy Cross Mountains the discovery of mineral resources, first of all oil and gas, is possible.
Authors and Affiliations
Yu. Z. Krupskyi, V. P. Marusyak
Keywords
Related Articles
- EP ID EP459379
- DOI -
- Views 122
- Downloads 0
Sedimentogenesis of early maykop (lower Oligocene) deposits in the Azov-Black Sea region
Purpose. Research of lithological features of the sedimentary complex of Early Oligocene within Azov-Black Sea Region and reconstruction of its sedimentary conditions. Method. The method includes lithologo-facial, minera...
Regional quasigeoid solutions for the Ukraine area
The goal. The UQG2012 regional quasigeoid solution of an accuracy better than 4 cm with respect to the GPS-levelling data of the 1st and 2nd order was constructed by means of the least squares collocation method. In the...
The stress-strain state modelling of the autochthonous sedimentary complex in the dynamic influence zone of the thrust wedge
Purpose. Computer modelling in the framework of continuum mechanics is a powerful tool to obtain qualitative and quantitative deformation parameters in the geological media. The purpose of this work was to study stress a...
The prognostication of mudflows in the Ukrainian Carpathians
Purpose. The aim of the research is to elucidate the regularity of the mudflow growth processes, depending on the factors that cause them and to the regional time-spatial prognostication of mudflow hazard using GIS. Meth...
Some peculiarities of seismisity Transcarpathians
Aim. Investigations of Carpathians backdeep seismicity peculiarities and their correlation with fault-block structure of the crust. Methodology. For the analysis of Transcarpathians seismicity were used instrumental seis...