List of Figures

1.1. Geological map of Sikkim and Darjeeling Himalaya
2.1. The Himalayan Arc
2.2. Digital Elevation Model of the Darjiling-Sikkim Himalayas
2.3. The Darjiling-S ikkim-Tibet Himalayan wedge
2.4. Seismicity in the Darjiling-S ikkim Himalaya
2.5. Focal mechanisms in the Darjiling-S ikkim Himalaya
2.6. The location of Main Boundary Thrust Fault zone outcrops
9. Main Boundary Thrust exposure at location MBT 1
2.8. Evidence of folding of the Main Boundary Thrust fault
2.9. Main Boundary thrust exposure at location MBT 2
2.10. Gondwana sandstone in the MBT fault zone
2.11. Equal area stereoplot of poles to beddingand cleavage
2.12. The location of the Gish Transverse Fault
2.13. Surface trace of the GTF
2.14. Fault gouge from the Gish Transverse Fault
2.15. Relict schistosity and Equal area plot of pole to GTZ related fractures
2.16. The Lesser Himalayan Duplex (a)
2.17. The Lesser Himalayan Duplex (b)
2.18. The Lesser Himalayan Duplex (c)
2.19. Out-of-sequence deformation in the frontal Darjiling-S ikkim Himalaya
2.20. Out-of-sequence imbricate faults
3.1. Map of Main Central thrust and Greater Himalayan sequence localities
3.2. Lingtse gneiss
3.3. Garnet-staurolite-kyanite schist
3.4. Photomicrographs of thin sections of samples from the Gangtok-Mangan section
3.5. Euhedral garnets
3.6. Shear bands at Rang Rang
3.7. Deformed L-tectonite Lingtse gneiss
3.8. Cliffs of folded calc-silicate
3.9. Leucogranite melt veins cross cut gneiss at Chungthang
4.1. Landslides
4.2. Mafic sills and boudins
4.3. Mafic boudins within a metapelitic gneiss in the Lachung valley
4.4. Folded migmatitic metapelite
4.5. Folded melt vein
4.6. Folded calc-silicate
4.7. Sillimanite lath in a GHS sillimanite gneiss
5.1. Digital elevation model of northern Sikkim
5.2. Google Earth image looking south down the valley towards Thangu (out of view)
5.3. Biotite-garnet-sillimanite migmatite gneiss
5.4. Augen gneiss, pressure shadows, bookshelf sliding and asymmetric mafic boudin
5.5. Equal area stereonets displaying structural measurements
5.6. Crystallographic preferred orientations
5.7. Panoramic view of the South Tibetan detachment system
5.8. Isoclinal folds and S-C fabric
5.9. Crystallographic preferred orientations in quartz
50. Google Earth image of the Gurudongmar Lake area
5.11. View of footwall GHS rocks
5.12. Close up view of Gurudongmar peak
5.13. View towards the eastern shore of Gurudongmar Lake
  Index