Piece of cake. First off, support your claims of how and why the dates are given for the age, and the length of the ice age you claimed. Otherwise, of course, you have no case at all.
Here we are DAD a list of published papers on the K-T boundary, so i am supporting my claims, but i bet you want read one of them.
References
1. L.W. Alvarez, W. Alvarez, F. Asaro and H.V. Michel, Extraterrestrial cause for the Cretaceous Tertiary extinction.
Science 208 (1980), pp. 10951108.
2. J. Smit, The global stratigraphy of the CretaceousTertiary boundary impact ejecta.
Annu. Rev. Earth Planet. Sci. 27 (1999), pp. 75113.
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3. C.C. Swisher, J.M. Grajales-Nishimura, A. Montanari, S.V. Margoliss, P. Claeys, W. Alvarez, P. Renne, E. Cedillo-Pardo, F.J.-M.R. Maurrasse, G.H. Curtis, J. Smit and M.O. McWilliams, Coeval 40Ar/39Ar ages of 65.0 million years ago from Chicxulub Crater melt rocks and CretaceousTertiary boundary tektites.
Science 257 (1992), pp. 954958.
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4. A.R. Hildebrand, G.T. Penfield, D.A. Kring, M. Pilkington, A.Z. Camargo, S.B. Jacobsen and W.V. Boynton, Chicxulub Crater: a possible Cretaceous/Tertiary boundary impact crater on the Yucatan Peninsula, Mexico.
Geology 19 (1991), pp. 867871.
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5. C.J. Orth, J.S. Gilmore and J.D. Knight, Iridium anomaly at the CretaceousTertiary boundary in the Raton Basin.
Filed Conf. Guidebook N.M. Geol. Soc. 38 (1987), pp. 265269.
6. A.R. Hildebrand and W.V. Boyton, Proximal CretaceousTertiary boundary impact deposits in the Caribbean.
Science 248 (1990), pp. 843847.
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7. A.M. Vickery, D.A. Kring and H.J. Melosh, Ejecta associated with large terrestrial impacts: Implications for the Chicxulub impact and K/T boundary stratigraphy.
Lunar Planet. Sci. XXIII (1992), pp. 14731474.
8. D.A. Kring, The Chicxulub impact event and possible causes of K/T boundary extinctions, in: D. Boaz, M. Doman (Eds.), Proceedings First Annual Symposium of Fossils of Arizona. Mesa Southwest Museum and Southwest Paleontological Society, Mesa, AZ, 1993, pp. 6379.
9. R.M. Pollastro and B.F. Bohor, Origin and clay-mineral genesis of the CretaceousTertiary boundary unit, Western Interior of North America.
Clays Clay Miner. 41 (1993), pp. 725.
10. D.A. Kring, A.R. Hildebrand and W.V. Boynton, Provenance of mineral phases in the CretaceousTertiary boundary sediments exposed on the southern peninsula of Haiti.
Earth Planet. Sci. Lett. 128 (1994), pp. 629641.
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So DAD where is your evidence,links will do and i will have a read.