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H. I. I. Click here to view the cross section A – A’. J. G. F. E. D. C. J. B. A. Click to End Show. Click letters to view pictures. Click here to see Strat Table. Looking ENE from A, at Mam Tor . Hummocky slipped Mam Tor Beds are in the fore ground.

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    Presentation Transcript
    1. H I I Click here to view the cross section A – A’ J G F E D C J B A Click to End Show Click letters to view pictures

    2. Click here to see Strat Table

    3. Looking ENE from A, at Mam Tor . Hummocky slipped Mam Tor Beds are in the fore ground. Black rocks to the left are the Edale Shales. Click here to move on to B A

    4. Click here to see half Graben analogy Click here to see further thinning to NE B

    5. General line of fault, but not seen directly from this angle Half Graben Analogy Roll Over O n l a p Click here to see half Graben analogy Click here to see further thinning to NE B

    6. Some years it was possible to repair the road with just a thick layer of tarmac, others fresh mettle was needed! Compares with fault movement generating sediment accommodation space Click here to move on to C B

    7. Looking East from C Castleton Hope Valley Floodplain Flowed Edale Shales Collapsed blocks of Mam Tor beds Trace of line of section – click it to review the section Click here to move on to D C

    8. Looking East from D Direction of Movement Note pattern of tensional gashes Back edge of listric rotating slip block Click here to look N – down the road D

    9. Looking NNE from D “I’m not driving over that!” – “Why not?” D Click here to see ‘Why not’

    10. Looking SE from E Looking SE from D True amplitude of the dislocation is seen at the ‘stiff’ road, but appears to diminish in the ‘softer’ disturbed bedrock. Might hill-creep have any influence in hiding the fault? E Click here to see the dislocation from further north on the road

    11. Looking S from F Curved Slip Plane Trace of dislocation Tensional collapse Back Rotated Block Click here to look SE Click here to look NNE F

    12. Blue John Mine View from E looking SW to Carb Limestone Massif, hosting Blue John Mine, at head of valley Click here to move on to G Click here to look NNE F

    13. Walking Down hill (NNE’ly) from E, across rather deformed tarmac Click here to move on to G F

    14. Looking WSW from F This is first of 5 photos of area around G They show different aspects of ‘nested’ slips. Click right facing arrow to progress through slides G Click here to move on to H

    15. Fault – Downthrow to the left Click here to move on to H G

    16. Click here to move on to H G

    17. Rotated Blocks with Tarmac tops Click here to move on to H G

    18. Rotated Blocks with Tarmac tops – seen from higher up the hill Click here to move on to H Click here to re-view the nested slips G

    19. Looking WSW from G Nested slip zone Trace of Northerly margin of the slip Click here to move on to I H

    20. Looking West across the top of the flowed Edale shales, exposed MamTor Beds slipped blocks to Mam Tor, where the scarp is the back slope of the slip Click here to look NNW Click here to move on to J I

    21. Looking NNE from I Ground above flowed Edale Shales is characteristically undulose Top half of person To scale amplitude of undulations Click here to move on to J

    22. Classic en echelon Tension Gashes Unfortunately – recently tarred to prevent water ingress Arrows indicate shear orientation Click here to see more shear Click here to move on to K J

    23. Classic shear deformation: Tension gash development – better seen in previous slide, but, here is seen the development of drag Shear direction is indicated by arrows Click here to move on to J J

    24. Steep Puff to Blue John Mine Click to End Show K