Mars

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Venus
Mars
Earths Moon (S. Pole)
Mercury
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Barringer Meteor Crater, Az. 1.18 km
49,000 years
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Roter, S. Africa 2.5 km
5 Million years
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Wolf Creek, Australia 0.875 Km 300,000
years
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Aorounga, Chad 17 km 200 Million years
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Bosumtwi, Nigeria 10.5 Km 1.3 Million years
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Deep Bay, Sask. 13 km 100 Ma
Clearwater Lakes, Sask. 32 km/22km 290 Ma
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Mistastan Lake, NF 28 Km 38 Ka
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Gosses Bluss, Aus. 22 km 142.5 Ma
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Manicougan Lake, Que. 100 km 212 Ma
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Chicxulub, Mex 170 Km 65 Ma
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Karakul, Tadjikistan 45 Km
lt 10 Ma
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Tunguska Event, 1908, Russia
80 million trees knocked down over 2,150 square
kilometres (830 square miles
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Tunguska Event 1908
Equivalent to a 100 MT Nuclear Bomb Blast
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Apollo 14 site spherules ( 0.2 mm
diameter) Argon40/Argon39 dates (accuracy /-
200 MY)
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Apollo 14 site spherules ( 200 micro-meters
diameter) Argon40/Argon39 dates (accuracy /-
200 MY)
gt 26 Ma periodicity
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1 BY averaging bins
Black and opaque spherules only
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Radar Image of NEO 1999JM8 Missed Earth by 5
million km in 1990, 6 million km in 1999
Average diameter 3.5 km
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What is wrong here?
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Question If cratering rate on Earth is same as
our Moon, why are their so few craters preserved?
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Question If cratering rate on Earth is same as
our Moon, why are their so few craters
preserved? Answer Erosion