736 TABLE 836.— LUNAR AND TERRESTRIAL CRATERS* 



Relationship between diameter and depth of terrestrial explosion craters, terrestrial meteoritic 

 craters and lunar craters. (All explosions occurred slightly below the surface.) 



D = 0.1083 d 2 + 0.6917 d + 0.75 

 where 



D = log diameter (feet) 



d = log depth (feet) 

 Examples : 



Observed Calculated 



Diameter depth depth 



Shell crater 10 ft 3 ft + 2.20 ft 



Arizona meteorite crater 4150 ft 700 ft (originally) 732 ft 



Lunar crater Moretus 77 mi 14,600 ft 16,900 ft 



Relationship between diameter of crater and rim height, above ground level for terrestrial ex- 

 plosion craters, terrestrial meteoritic craters, and lunar craters. 



E = —0.097 D 2 + 1.542 D — 1.841 

 where 



E = log rim height (feet) 



D = log diameter (feet) 



Examples : 



Observed Calculated 



Diameter rim height rim height 



Shell crater 10 ft A ft ± .40 ft 



Arizona meteorite crater 4150 ft 165 ft (past erosion 295 ft 



neglected) 



Lunar crater Cleomedes 80 mi 5200 ft 5830 ft 



Terrestrial meteoritic craters 



Diameter 

 (ft) 

 American craters : 



Arizona 4150 



Odessa 1, near Odessa, Tex 550 



Odessa 2 70 



At least one other small crater 



identified nearby 



Brenham crater (near Brenham, 

 Kans., also called Haviland 



crater) 56x36 



Chubb (Quebec) 2^mi 



So\ith American craters : 

 Campo del Cielo, Argentine ; many 



craters 20 to 254 



Australian craters : 



Henbury 1, near Henbury cattle 

 station 



Present 



depth 



(ft) 



570 



14 



shallow 



shallow 

 filled — ice-covered lake 



Original 



depth 



(ft) 



700 



130 



17 



>10 



Present 

 rim height 



165 

 12 

 



(probably double) 660X360 



8 175 



9 small 



10 60 



11 45 



12 60 



13 30 



Boxhole crater, 200 miles N. E. of 



Henbury 600 



Dalgaranga crater 230 



shallow 



50 

 16 



10 







550 











2 



2 



4 



12 



high 



high 



low 



"\2 

 low 



prominent 



Discovered 



1891 

 1921 

 1921 



1933 



1950 

 Pits known 

 since 1576 



1930 

 1930 

 1930 

 1930 

 1930 

 1930 

 1930 

 1930 

 1930 

 1930 

 1930 

 1930 

 1930 



1937 

 1923 



Prepared by R. B. Baldwin, Oliver Machinery Co., Grand Rapids, Mich. 



(continued) 



SMITHSONIAN PHYSICAL TABLES 



