Evolution of the Tithonian–Aptian Carbonate Platform Along the Northern Tethyan Margin, Eastern Helvetic Alps
Hanspeter Funk, Karl B. Föllmi, Hans Mohr, 1993. "Evolution of the Tithonian–Aptian Carbonate Platform Along the Northern Tethyan Margin, Eastern Helvetic Alps", Cretaceous Carbonate Platforms, J. A. Toni Simo, Robert W. Scott, Jean-Pierre Masse
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Name: Eastern Helvetic platform
Authors: Hanspeter Funk, Karl B. Föllmi, and Hans Mohr
Location: From 46° 40' to 47° 20' north latitude and 8° 40' to 9° 40' east longitude, Helvetic Alps, eastern Switzerland
Geologic time interval: Late Tithonian–early Albian
Tectonic-sedimentary setting: Northern Tethyan passive margin
Basin type: Epeiric
Paleoclimate: Mainly subtropical, varying humidity, with some cooler intervals
Platform type: Open shelf carbonate platform, homoclinal ramp type
Platform geometry: Minimum platform length is about 1500 km; width may surpass 100 km in several parts of the margin. Platform thicknesses are variable, with maximum platform thickness exceeding 1 km.
Facies and fossils: Fine- to coarse-grained carbonates, mudstones, claystones, and marlstones; glauconitic, siliciclastic, and phosphatic sediments; calpionellids, orbitolinids, corals, rudists, ammonoids, and echinoderms.
Systems tracts: Transitional, tidal flat, lagoonal, open platform, platform margin, slope, basin
Stacking patterns: Succession of shallowing and drowning phases with short intervals of subaerial exposure