Tabular View of the Occurrences of Disintegration- t 



TABLE I 

 OF the Conditions 



Which the Disintegra 



s E. Ireland . 



IMimw', England. 



jB?S£i/* ■ 



gaUaipbnw, VosgoMts. 

 *Umc 



Heidelberg Sheet 



MtobenjThDrlngtrwalcl. 



CrimMl Pam, Alp" 



Uer-dc-Glace, Alps 



Amn, Egypt 



Pyramfdi of Gizeh, Egypt . 



Sill li 



llimiitiiy.i* 



Ceylon 



Lung'ffang'ihan, China . 



Iiekson.N.H, 

 Rockport, Miisi 



Richmond, Vn 



'-"Ti« 



Iron Ml., Mo 



Mi Stout, Wnh., 

 WmIcIi, Ulnli , . . 



Built, Mom 



''■' i Peak, Colo 



Globe Dbtrkt, Ariconn. 



'*'""■;: Sitrra Ncvu.ln 



,|l| |' Mndre 



«"WI Cidlfornln 



Wmraiso, cwio. 



'"' Il "'"-.„. llrar.il... 



,,7 N. 

 4<iN. 

 34 N. 

 30 N. 

 30 N. 



37 N. 

 34 N. 

 37 N. 



47 N. 



40 N. 



46 N. 

 30 N. 

 34 N. 



29 N. 

 31 N. 

 33 S. 



7 W. 

 4 W. 



76 E. 

 80 E. 

 124 E. 



71 W. 



77 W. 

 77 W. 



77 W. 



84 W. 



91 W. 



ngVV. 

 nsW. 

 72 W. 



TOPOCRAPHY 



Young, glaciated 



mountains 

 Surface of alpine 



glacier 

 Shallow young 



Pyramids on a 



plateau 

 Rugged 



Young, moun- 



Mountainous 



Mountainous 



High coast hills 

 Mature, moun- 

 tainous 



Ruggedly m 

 Ruggedly m 



Rugged maturity 



Monadnock and 



peneplain 

 Rugged maturity 



Ruggedly mou 

 Mountainous 

 Rugged 



Under 2,000 ft. 

 1,500 ft. 



1,500 ft. 

 1,500 ft. 



1,500 ft. 

 800 ft. 



2,000 ft. 



6,500 ft. 

 5,500 ft. 



Less than 400 ft. 



3,500 ft. 



Above 6,000 ft. 



General 



General 



Only valley see; 



Surface 



General 



Surface of the 



pyramids 

 Valley sides 



Exposed surfaces 



Valley 



Chiefly shown in 

 glacial boul- 



Surface generally 

 Surface generally 



Surface generally 



Surface generally 



Surface generally 



) to 30 ft. 

 ; to 25 ft. 



I ft. 



Superficial 



Superficial 



Superficial, locally 10 ft 



2/3 cm. 



Partly superficial 



Superficial 

 Few feet 

 "Tiefgreifcnd" 



Mostly superficial 



5 ft. plus 

 Superficial 



30 ft. in places; super- 

 ficial in others 

 Superficial 



Depth to Whio 



Decomposition 



Extends 



to 8 ft. Local 

 ly some hun 

 dreds of feet 



Slight 

 Slight 

 Slight 



5 ft. plu 

 95 ft. 



Slight 



Slight 

 Slight 

 Slight 



Slight 

 Slight 



Amount of De- 

 composition 

 Shown by Disin 

 tegrated Rock 



Noticeable 



though nc 



very advanced 

 Noticeable 



though not 



very advanced 



Noticeable 

 though nc 

 very advanced 



Noticeable 

 though not 

 very advanced 



Noticeable 

 though not 

 very advanced 



Very slight 



Very slight 



For the most part 



very slight 

 Very slight 



Noticeable 



though slight 

 Noticeable 



though slight 



Considerable; at 



surface corn- 

 Considerable; at 

 surface con 



Considerable 



Considerable 

 surface cor 



Slight 



Slight 



Slight 

 Slight 

 Slight 



Slight 



Slight 



Slight 



Noticeable; 

 surface coi 

 plete 



Vegetative Cover 



Grass and brush 

 Heather and moss 



Grass and woods 

 Grass and woods 



Light or none 

 None 



None 



Light forest 

 Mostly none; som 



Forest and grass 

 Lichens 



Grass and forest 

 Grass and forest 



Light 

 Light 

 Grass 



Light 

 Light 

 Light 



Summer Temperature 



Mean 

 57 F. 



64 F. 

 64 F. 



5i F 



iCuldest 



month) 



82 F. 

 75 F. 

 75 F. 



94 F. 

 94 F. 



55 F. 



4SF. 



33 F. 

 33 F. 



75 F. 

 75 F. 



60 F. 



37 F. 



44 F. 52 F. 



.n extremes) 

 72 F. I 76 F. 



Winter Temperature 



Max. Min. Me;i 



goF. 

 75 F. 



73 F. 



(For At 

 lanta) 

 76 F. 



45 F. 

 39 F. 



-13 F. 

 (For 



Huston) 



36 F. 



34 F. 

 34 F. 

 )3 F 



62 F. 

 55 F. 



24 F. 

 6F. 

 SoF. 



62 F. 

 82 F. 



Very 



light 

 Very 

 light 

 29 in., \ in June and July 



12 in. oin. 1 to a 



Medium-grained granite 



Coarse porphytitic granite; fine- 

 grained granite not affected 



Coarse and porphytitic granites; 

 fine grained granite not affected 



Coarse, porphyrins granite 



Coarse porphyritic granite 



Medium-grained granite 



Medium-grained gncissic granite 

 Medium grained gnoissic granite 

 Coarse, porphyritic, blotitc granite 

 Coarse, porphyritic, biotltt granite 



Medium grained pyn 



Medium-grained, with 



Medium-grained mica granite 



Medium-grained grnnodlorlto 



Mcdium to conrse grained mil a, 

 hornblende, quartz monzontte 



Conrse to coarse and porphyritic 

 granite 



Granodloritc 

 Granodloritc 



IV bearing mincrahi decomposed 



