Zur Bilanz des Buntsandsteinbeckens (Korngrößenverteilung und Gesteinsbruchstücke)

Leggewie, Rüdiger; Füchtbauer, Hans; El-Najjar, Ramadan

doi:10.1007/bf01989593

Cited by 10 publications

(1 citation statement)

References 8 publications

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“…9), suggests a common source for these minerals. Feldspar, especially K-feldspar, is a frequent constituent of the Lower Triassic Buntsandstein in the entire Mesozoic German Basin (Leggewie et al 1977). Apatite, besides ZTR, is also an important constituent of the Lower and Middle Buntsandstein heavy mineral spectra in the surroundings of the Harz Mountains (Wunderlich 1957;Sindowski 1957;Langbein 1985), whereas garnet appears to be frequent only to the north of the Harz Mountains (Thon 1963).…”

Section: Discussionmentioning

confidence: 98%

Provenance of Cretaceous clastics in the Subhercynian Basin: constraints to exhumation of the Harz Mountains and timing of inversion tectonics in Central Europe

Eynatten¹,

Voigt

Meier

et al. 2007

Int J Earth Sci (Geol Rundsch)

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The Harz Mountains and the adjacent Subhercynian Cretaceous Basin figure as the most prominent surface representative for Late Cretaceous inversion structures in Central Europe. Facies, depositional architecture and provenance of the basin fill reflect mechanisms and timing of the exhumation of the Harz. From Hauterivian to Early Santonian there is no evidence for detrital input from the nearby Harz area. Sediments are mature quartzarenites derived from Paleozoic basement rocks and/ or recycled Permian to Mesozoic sedimentary rocks. This situation changed drastically in Middle to Late Santonian when freshly exhumed and eroded Mesozoic sedimentary cover rocks of the Harz were delivered into the basin. Feldspar and lithoclasts reflect erosion of Triassic and, in places, Jurassic to Turonian strata. Apatite and garnet in heavy mineral spectra are derived from largely unweathered Lower Triassic Buntsandstein as indicated by apatite and garnet chemistry. In Early Campanian, Paleozoic lithoclasts indicate erosion cutting down into the basement of the Harz. Simultaneous strong decrease of feldspar, garnet and apatite suggest an almost complete removal of the 2-3 km thick Mesozoic cover of the Harz within only 2-4 Myr. This translates into an exhumation rate of approximately 1 mm/a consistent with apatite fission track data from granitoid rocks of the Harz Mountains.

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Section: Discussionmentioning

confidence: 98%