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Introduction

Antarctic Peninsula path since breakup: review and implications for James Ross Basin development Marta E. Ghidella Instituto Antártico Argentino. Introduction. Examine of the Antactic Peninsula path for four tectonic models:. Ghidella et al (2002) Lawver et al (1999)

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Introduction

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  1. Antarctic Peninsula path since breakup: review and implications for James Ross Basin developmentMarta E. GhidellaInstituto Antártico Argentino

  2. Introduction • Examine of the Antactic Peninsula path for four tectonic models: Ghidella et al (2002) Lawver et al (1999) Livermore – Nankivell – Eagles (1996, 1997, 2000) Jokat et al (2003) • Examine the relationship of the AP path with James Ross Basin development

  3. James Ross Basin

  4. Reconstructions • We are going to show reconstructions for the SAM movement, ANT kept fixed • We are not including the reconstruction of the Scotia plate • The plots include synthetic isochrons, calculated from rotated C34 picks. • The path of one point of the tip of the Antarctic Peninsula will be displayed for each epoch

  5. Ghidella et al Reconstructions begin ... Next:

  6. Ghi - 160 - SAM fixed Ghi – 160 - SAM fixed

  7. Ghi-147-SAM fixed

  8. Ghi –131 - SAM fixed

  9. Ghi – 118 - SAM fixed

  10. Ghi – 90 - SAM fixed

  11. Ghi – 83 - SAM fixed

  12. Ghi – 66 - SAM fixed

  13. Ghi – 33 - SAM fixed

  14. Ghi - 26 - SAM fixed

  15. Ghi – 0 – SAM fixed back

  16. Lawver et al Reconstructions continue ... Next:

  17. Law – 160 – SAM fixed

  18. Law – 147 – SAM fixed

  19. Law – 131 – SAM fixed

  20. Law – 118 – SAM fixed

  21. Law – 90 – SAM fixed

  22. Law – 83 – SAM fixed

  23. Law – 66 – SAM fixed

  24. Law – 33 – SAM fixed

  25. Law – 26 – SAM fixed

  26. Law – 0 – SAM fixed back

  27. Jokat et al Reconstructions continue ... Next:

  28. Jo – 159 – SAM fixed

  29. Jo – 147 – SAM fixed

  30. Jo – 131 – SAM fixed

  31. Jo – 118 – SAM fixed

  32. Jo – 90 – SAM fixed

  33. Jo – 83 – SAM fixed

  34. Jo – 66 – SAM fixed

  35. Jo – 33 – SAM fixed

  36. Jo – 26 – SAM fixed

  37. Jo – 0 – SAM fixed back

  38. Livermore – Nankivell - Eagles Reconstructions continue ... Next:

  39. Liv – 165 – SAM fixed

  40. Liv – 150 – SAM fixed

  41. Liv – 132 – SAM fixed

  42. Liv – 119 – SAM fixed

  43. Liv – 93 – SAM fixed

  44. Liv – 83 – SAM fixed

  45. Liv – 66 – SAM fixed

  46. Liv – 33 – SAM fixed

  47. Liv – 26 – SAM fixed

  48. Liv – 0 – SAM fixed back

  49. End of reconstructions

  50. All paths at present Lawver Ghidella Jokat Livermore

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