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Volume 26: British Middle Jurassic Stratigraphy — Chapter 01
 

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Chap 01
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Chap 02
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Chap 03
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Chap 04
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Chap 05
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Chap 06
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Figure 1.1
Major Jurassic subdivisions. (1 = Geological time terms; 2 = Chronostratigraphical (time-rock) terms; † = Harland et al. (1990); * = Gradstein and Ogg (1996) (95% confidence level).)

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Figure 1.2
Simplified sketch map showing the main British Middle Jurassic outcrops (onshore area only).

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Figure 1.3
Chronostratigraphical subdivisions of the Middle Jurassic Series (for sources, see text).

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Figure 1.4
Ammonite biohorizons recognized in the British Middle Jurassic Series (for sources, see text).

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Figure 1.5
Examples of faunal-floral assemblages in some Mid Jurassic environments (modified from Sellwood, 1978). (a) High-energy, open marine oolite shoal assemblage; (b) clear-water, firm substrate marine assemblage; (c) low-energy, shallow-marine shelf assemblage; (d) freshwater–brackish-water assemblage.

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Figure 1.6
(a–c,e,f) Palaeogeographical reconstructions for the British area during the late Early and Mid Jurassic (slightly modified from Cope, 1995); (d) main structural elements affecting sedimentation in the British area in the Mid Jurassic (terminology as used in this volume). The ‘London Platform’ is a structural high, the limits of which remained generally constant. The emergent part of the Platform, the position and limits of which varied, is referred to as the ‘London Landmass’. (Compiled from various sources.)

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