Mike Simms (invited): To Here From Eternity

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Types of meteorites and their abundance (%) Stony Meteorites Falls Finds Ordinary Chondrites 76.9% 50.9% Carbonaceous Chondrites 3.7% Other chondrite types 1.7% Achondrites 7.7% Ungrouped 4.3% Irons 4.2% 20.8% Stony-irons 1.3% …which is why they are called Ordinary Chondrites.
Types of Ordinary Chondrite (each comes from its own parent planet) Type H (High in iron) Mooresfort 1810 Limerick 1813 Killeter 1844 Dundrum 1865 Crumlin 1902 Bovedy 1969 Leighlinbridge 1999 Type L (Low in iron)
Page 1 and 2: TO HERE FROM ETERNITY The story of
Page 3 and 4: Friday 25th April 1969 9.25 p.m. A
Page 5 and 6: …and barely 15 seconds to cross N
Page 7 and 8: A bigger one lands in a field near
Page 9: The Bovedy, Crumlin and Leighlinbri
Page 13 and 14: Star formation triggered by a super
Page 15 and 16: Planetismal accretion Melting (due
Page 17 and 18: Pallasite meteorites (planet mantle
Page 19 and 20: Splashes from the collision of molt
Page 21 and 22: Followed by slow cooking of the L C
Page 23 and 24: For the next four billion years, no
Page 25 and 26: …which knocked the wind argon out
Page 27 and 28: Catastrophic destruction of the L C
Page 29 and 30: How do they get to Earth? Mr. Kirkw
Page 31 and 32: Asteroid Belt Jupiter Sun What happ
Page 33 and 34: Lap 1
Page 35: Lap 2
Page 46 and 47: Travel time?
Page 48 and 49: Meteorite travel times: Cosmic Ray
Page 50 and 51: ~467 Ma ago all reached Earth in 10
Page 52 and 53: Where is the L Chondrite parent bod
Page 54 and 55: Is it Flora? Close to the 7:2 and n
Page 56 and 57: nu6 7:2 3:1 8:3 5:2 7:3 2:1 Perhaps
Page 58 and 59: See Bovedy and other meteorites at

Mike Simms (invited): To Here From Eternity

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