1) Move mouse above the red circle in the map to see the name of locality, click to (de)select, OR
2) Select locality here 3) Select keyword here (use Ctrl key for multiple selection)
Geological background
Cenozoic alkaline volcanic rocks of the Variscan Bohemian Massif
represent the easternmost part of the magmatic province associated with European Cenozoic
Rift System which is believed to develop by passive rifting in response to the build-up of
syn-collisional compressional stresses in the foreland of the Alps and the Pyrenees.
In the Bohemian Massif the occurences of Cenozoic volcanic rocks form an arc-shaped belt which
extends over 500 km from the western to the easternmost parts of the massif. The more prominent
western segment of the belt is associated with SW–NE-trending, >250 km long Ohře Rift (Eger Rift)
stretching between the regionally important, steep, NW-SE striking Labe-Odra and Franconian fault
systems, the latter representing the SW limit of the Bohemian Massif. The eastern segment of the
volcanic belt contains mainly isolated volcanic complexes within the Labe–Odra fault system.
·
Rationale
Textures and microstructures of rocks are often too complex to be easily
described by words. Yet the journal editors force us to reduce number of figures in our papers. The general
lack of easily accessible microscopic imagery inspired us to publish by means of this atlas a part of our
extensive collection of thin section scans, photomicrographs and BSE images of mantle xenoliths from the
Bohemian Massif.
Primarily, these xenoliths carry information on sub-volcanic, Central-European uppermost mantle which can be
locally or regionally specific. However, we believe that the atlas can prove useful as a comparative material
to any geologist involved in mantle petrology studies worldwide, regarding that the samples of the Earth's mantle
are only rarely found on its surface...
·
About
Launched in 2012. Images, text and layout by Petr Špaček.
Other contributors specified in the view page.
Supported by Grant Agency of the Czech Republic, project #205-09-1170.
Any contributions are welcome at spacek@ipe.muni.cz
1) Move mouse above the red circle in the map to see the name of locality, click to (de)select, OR
2) Select locality here 3) Select keyword here (use Ctrl key for multiple selection)
