Download - LOOKING FOR LAKE MISSOULA!!
![Page 1: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/1.jpg)
LOOKING FOR LAKEMISSOULA!!
![Page 2: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/2.jpg)
![Page 3: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/3.jpg)
EARLIER MAJOR, CRATERING
![Page 4: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/4.jpg)
![Page 5: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/5.jpg)
![Page 6: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/6.jpg)
![Page 7: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/7.jpg)
CONCLUSIONSSince Imbrium was a relatively young basin forming event, this type of process must have been prevalent prior to 4.0AE. Either the Imbrium blanket has dominated ALL of the materials so far studied, or we must conclude that the major impact events peaked in a relatively short period near 4.0AE. It must in any event have been quite a show from the Earth assuming that you had a really good bunker to watch from.
LPSC IV 1973
![Page 8: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/8.jpg)
YouDid not
look hard
enough!What is
the cause?
IT WAS LATE
& FAST!
![Page 9: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/9.jpg)
![Page 10: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/10.jpg)
![Page 11: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/11.jpg)
![Page 12: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/12.jpg)
![Page 13: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/13.jpg)
JESSBERGER, HUNEKE & WASSERBURG1974 nature, v. 248 DAP & GJW EPSL v17 1972
A BRECCIA MADE OF 4.5GY MATERIAL IMPACT MET. AT 3.9 GY
40Ar/39Ar
87Sr/86Sr
![Page 14: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/14.jpg)
![Page 15: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/15.jpg)
![Page 16: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/16.jpg)
LHB of WHOLE INNER SOLAR SYSTEM
G. J. Wasserburg, D. A. Papanastassiou, F. Tera, J. C. Huneke: Phil. Trans. of the Royal Society of London ,1977.
![Page 17: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/17.jpg)
DALRYMPLE & RYDER (1989)
NORMAN ET AL (2006)
![Page 18: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/18.jpg)
LUNAR METEORITES (AGES)
Cohen, Swindle & Kring (2000)31 clasts
Weighted mean 207Pb/206Pb age of zirconolite in MIL 05035
ZHANG AiCheng, et al. Sci China Earth Sci March (2010) Vol.53 No.3
3.851 Ga
![Page 19: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/19.jpg)
![Page 20: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/20.jpg)
Minton & Malhotra, Nature, 457, 1109 (2009)
![Page 21: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/21.jpg)
Strom et al., Science, 309, 1847 (2005)
Pop 1
Pop 2
![Page 22: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/22.jpg)
Pop 1
Pop 2
Strom et al., Science, 309, 1847 (2005)
![Page 23: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/23.jpg)
MIGRATION of MAJOR PLANETs
Malhotra, R. The origin of Pluto’s peculiar orbit. Nature 365, 819–-821 (1993).
Origin of the cataclysmic Late Heavy Bombardmentperiod of the terrestrial planets.R. Gomes, H. F. Levison, K. Tsiganis & A. Morbidelli
Chaotic capture of Jupiter’s Trojan asteroids in the early Solar SystemA. Morbidelli, H. F. Levison, K. Tsiganis & R. Gomes,
Vol 435,26 May 2005-nature
Vol 435, 2005; nature
Depletion of the Outer Asteroid BeltJer-Chyi Liou* and Renu Malhotra . SCIENCE, VOL. 275,1997
![Page 24: LOOKING FOR LAKE MISSOULA!!](https://reader035.vdocuments.us/reader035/viewer/2022081604/56816410550346895dd5bb45/html5/thumbnails/24.jpg)
THE ASTEROID BELT IS OUR“LAKE MISSOULA” IN THE SKIES,& MIGRATION OF JUPITER & SATURNAPPEAR TO BE THE LOG JAM BREAKERS.