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Table 2 Thickness of lithostratigraphic units of the Latest Triassic and Early Jurassic in E France and SW Germany (today’s Upper Rhine Graben)

From: Evidence for synsedimentary differential tectonic movements in a low-subsidence setting: Early Jurassic in northwestern Switzerland

Formation (Fm.) Thickness compacted [m] Thickness decompacted [m] Sedimentation Rate [m/Myr] compacted sediment Sedimentation Rate [m/Myr] decompacted sediment Decompaction Factor Ammonite Zone Age [Myr] Duration [Myr]
Jurensismergel Fm. and Opalinuston Fm. 3.0–39.0 6.0–78.0 0.7–9.8 1.5–19.5 2 Variabilis–Aalensis 178.2–174.2 4
Posidonienschiefer Fm. 3.0?–12.0 6.0–24.0 0.6–2.2 1.1–4.4 2 Tenuicostatum–Bifrons 183.6–178.2 5.4
Amaltheenton Fm. 3.5–c. 30.0 7.0–60.0 0.7–6.4 1.5–12.8 2 Margaritatus–Tenuicostatum 188.3–183.6 4.7
Numismalismergel Fm. c. 0.7–c. 25.0 1.3–50.0 0.2–9.3 0.5–18.5 2 Jamesoni–Davoei 191.0–188.3 2.7
Obtususton Fm. 22.0–30.7 44.0–61.4 5.6–7.9 11.3–15.7 2 Obtusum–Jamesoni 194.9–191.0 3.9
Arietenkalk Fm. <3.0– > 5.0 <4.5– > 7.5 0.7–1.1 1.0–1.7 1.5 Bucklandi–Obtusum 199.4–194.9 4.5
Angulatenton Fm. c. 0.5–2.5 0.8–3.8 0.7–3.6 1.1–5.4 1.5 Angulata 200.1–199.4 0.7
Psilonotenton Fm. 0 0 0 0 2 Planorbis–Liasicus 201.1–200.1 1
Early Jurassic 40.0–90.0 / 1.5–3.3 / / Planorbis–Aalensis 201.1–174.2 27
Exter Fm. 2.0–10.0 3.2–16.0 0.2–1.2 0.4–1.9 1.6 / 209.6–201.1 (205.8–201.1) 8.5 (4.7)