Investigations are focussed on the Lower Carboniferous Kammquartzite Formation of the Hörre-Gommern-Zone, a more than 350 km long but narrow zone of diverging lithology in the Rhenohercynian of Germany. Due to the lack of sedimentary structures and fossils in the field outcrops investigated til now, the palaeogeographic reconstruction of this quartzite formation is obscure and has been interpreted extremely different (nappe structure, intra-basinal rise, deep-marine trench). New investigations on the sedimentology and stratigraphy of the formation at cores and field outcrops made it possible to establish a detailed palaeogeographic model. The Kammquartzite-Formation can be distinguished into three types of lithofacies: Quartzite Facies, Quartzite-Shale Facies and Shale Facies. These are different turbidites, high to low concentrated, as well as pelagic background sedimentation. Based on miospores the exact stratigraphical position of the Kammquartzite Formation is verified for the first time. The base of the formation is at the base of the Viséan (PU spore zone) and the top is in the upper Viséan at the top of V3b (NM spore zone). The comprehensive miospore association of the Kammquartzite Formation also allows a good comparison to the microflora of West- and East-Europe. According to this the following palaeogeographical model for the Kammquartzite Formation results: Weathering during fluvial transport followed by shallow marine reworking produced mature, quartz-rich sediments at the Laurussian shelf. During the Viséan, synchronous to strongly regressions, different turbidity currents transported these quartzitic sands through narrow feeder channels into the Hörre-Gommern trench in the northern part of the Kulm-Basin. At the same time in the southern part of this basin huge flysch sequences (Kulm-Greywackes) were deposited from the active continental margin of 'Gondwana'. In the upper Viséan (V3b/c), when the Kulm-Greywackes were attaining the Hörre-Gommern-Zone, the siliciclastic sedimentation from Laurussia has finished. Further compression of the Variscan Orogeny inserted the Kammquartzite Formation into the accretionary wedge infront of the orogenic front, surrounded by huge flysch sequences, the dominating sediments in the Rhenohercynian Kulm-Basin.