Informace o publikaci
Depoziční prostředí a provenience spodnopaleozoických klastik ve vrtu Měnín-1, jjz. od Brna
| Autoři | |
|---|---|
| Rok publikování | 2007 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Zprávy o geologických výzkumech na Moravě a ve Slezsku v roce 2006 |
| Fakulta / Pracoviště MU | |
| Citace | |
| Obor | Geologie a mineralogie |
| Klíčová slova | Cambrian- Devonian siliciklastics- sedimentary environment- heavy minerals- provenance |
| Popis | Several facies that identify similar depositional environments were found bouth in the numerous Cambrian sedimentary fills and thin Devonian siliciclastics. There were repeated changes between the terrestrial and shallow marine conditions. The chemical composition of detrital garnets and tourmalines sampled from both the Cambrian and Devonian sediments identify a similar provenance. Metasediments, mainly gneisses and schists as the main source rocks, were identified for the oldest part of the Lower Cambrian stratal succession. Higher in the succession, a gradual decrease of granitoids in the Lower Cambrian source rocks was proved. Above the major, Lower Cambrian -Middle Miocene hiatus, the composition of translucent heavy mineral assemblages is strongly affected by redeposition from older sediments. |