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| Content Provider | Springer Nature Link |
|---|---|
| Author | Jäger, Hartmut |
| Copyright Year | 2002 |
| Abstract | Palynological investigations have been completed in the Lower Carboniferous Kammquartzite Formation of the Hörre-Gommern-Zone, a long and narrow trench of diverging facies in the Kulm Basin in Germany. Due to the lack of macro- and microfauna and the different lithologies the stratigraphical position of the formation and also the palaeogeographical interpretation of the entire zone is discussed. Based on miospores, the Kammquartzite Formation has been dated for the first time.Stratigraphical analysis of the spore assemblages shows that the formation ranges from the base of the Viséan (PU-Zone) to the Upper Viséan (ME-Zone). Because of the turbiditic nature of the quartzites, numerous reworked palynomorphs are preserved in the samples. The assemblages provide a good general view of Tournaisian (reworked) and Viséan (indigenous) microfloras in Germany. These are closely comparable to typical assemblages of W-Europe, but less diverse. The lack of strongly triangular genera is significant and problematic, because of their great stratigraphic value in the Upper Viséan elsewhere.The palynofacies of the Kammquartzite Formation is compared to the palynofacies in the Kulm-Greywackes (major clastic facies of the Kulm Basin) and from Rügen Island (carbonate shelf). No significant change in palynofacies from Rügen (shelf facies) to the Kammquartzite Formation (basinclastics I) is observed, as would be predicted by common models in use. A strong difference in palynofacies is seen between the Kammquartzite Formation and the surrounding Kulm-Greywackes (basin clastics II). In addition to the petrographic evidence from the quartzites, palynofacies analysis clearly suggests that the source area of the Kammquartzite Formation is the Laurussian shelf north of the basin (Rügen) and is totally different from that of the Kulm-Greywackes.Die unterkarbonische Kammquarzit-Formation wird palynologisch untersucht. Sie gehört zur Hörre-Gommern-Zone, einem schmalen, langgestreckten Sonderfaziesbereich im Rhenoherzynikum in Deutschland. Aufgrund des Fehlens von Makro- und Mikrofauna in der Formation sowie der stark abweichenden Lithologie wird sowohl die exakte stratigraphische Position der Formation als auch die paläogeographische Interpretation der gesamten Zone diskutiert. Anhand von Sporen kann die Kammquarzit-Formation nun erstmals feinstratigraphisch eingestuft werden. Demnach setzt die Kammquarzit-Formation an der Basis des Viséum (PU-Sporenzone) ein und reicht bis ins obere Viséum (ME-Sporenzone). Da es sich bei den Quarziten um Turbidite handelt, enthalten die Proben einen hohen Anteil an aufgearbeiteten Palynomorphen und geben damit einen guten Überblick über die Mikroflora sowohl des Tournaisium (aufgearbeitet) als auch des Viséum in Deutschland. Diese ist sehr gut mit der westeuropäischen Mikroflora vergleichbar, auch wenn die Diversität in der Kammquarzit-Formation deutlich geringer ist. Speziell stark dreieckige Formen sind sehr selten, was aufgrund ihrer großen stratigraphischen Bedeutung im oberen Viséum von Bedeutung ist.Weiterhin wird die Palynofazies der Kammquarzit-Formation mit der Palynofazies der Kulm-Grauwacken (der dominierenden klastischen Fazies im Kulm-Becken) und der Palynofazies von Rügen (Karbonatschelf) verglichen. Entgegen bisherigen Modellen stimmen die Palynofazies von Rügen (Schelf) und der Kammquarzit-Formation (Beckenfazies 1) weitestgehend überein. Ein deutlicher Unterschied in der Palynofazies besteht dagegen zwischen Kammquarzit-Formation und den umgebenden Kulm-Grauwacken, den beiden Beckenfazies-Typen. Die Palynofazies-Analyse bestätigt damit die sedimentpetrographischen Untersuchungen, daß nämlich das Liefergebiet der Kammquarzit-Formation im Gegensatz zu den Kulm-Grauwacken auf dem nördlichen Schelf (Rügen) zu suchen ist. |
| Starting Page | 609 |
| Ending Page | 637 |
| Page Count | 29 |
| File Format | |
| ISSN | 00372110 |
| Journal | Palaeobiodiversity and Palaeoenvironments |
| Volume Number | 82 |
| Issue Number | 2 |
| Language | German |
| Publisher | Springer-Verlag |
| Publisher Date | 2002-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | Subscribed |
| Subject Keyword | Palynology Palynostratigraphy Palynofacies Miospores Lower Carboniferous Viséan Mississippian Rhenohercynian Zone Hörre-Gommern-Zone Paleontology Biodiversity Animal Systematics/Taxonomy/Biogeography Plant Systematics/Taxonomy/Biogeography Freshwater & Marine Ecology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Paleontology |
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