Page 16 - An Atlas of Carboniferous Basin Evolution in Northern England
P. 16

Regional  structural  framework                                                                                          9


          Pre-Collision


































          Post-Collision











































                                                                                                                                                          Fig.  7.  Idealized  crustal-scale  cross-section  showing  the  configuration  of  the  Variscan
                                                                                                                                                          orogeny  and  northern  England  rift  system  during  (a)  Brigantian  times  (pre-collision)
                                                                                                                                                          and  (b) late Westphalian  C  times  (modified after  Fraser  & Gawthorpe  1990).
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