Subsidence Analysis and Visualization by Eun Young Lee Johannes Novotny & Michael Wagreich

Author:Eun Young Lee, Johannes Novotny & Michael Wagreich
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

35

km

Initial lithosphere thickness

125

km

Density of mantle at 0 °C

3330

kg · m−3

Density of crust at 0 °C

2800

kg · m−3

Density of bulk sediment

2300

kg · m−3

Water density

1000 (saline water 1025)

kg · m−3

Thermal expansion coefficient

3.28 × 10−5

°C−1

Temperature of the asthenosphere

1333

°C

Thermal diffusivity

10−6

m2 · s−1

2.3.2 Example Study of Post-Rift Thermal Subsidence Analysis

A number of sedimentary basin studies have evaluated the post-rift phase by applying appropriate stretching factor s (β) and thermal subsidence model to observed tectonic subsidence curve (Fig. 2.15) (e.g. Royden and Keen 1980; Sclater and Christie 1980; Keen and Cordsen 1981; Bond et al. 1989; Wagreich and Decker 2001; Bertotti and Gouiza 2012; Pinet et al. 2013; Holt et al. 2015).

Fig. 2.15Comparison between observed tectonic subsidence curves and predicted thermal subsidence curves in the Essaouira Basin . The vertical black dotted line marks the end of normal faulting and syn-rift stage and the start of post-rift stage (revised from Bertotti and Gouiza 2012)

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