UTHOLOGY IN LOW-GRADE 

 ZONE (EPIZONE) 



5 



TH 



ICKNESS 

 N FEET 



£ 



INTRUSIVE ROCKS 



GLACIAL TILL 8. OUTWASH, ALLUVIUM 



»LATE AND SANDSTONE, WITH VOL- 

 CANIC MEMBER CONSISTING OF 

 CHLORITE SCHIST AND META- 

 BASALT (Olc), SODA-RHYOLITE 

 VOLCANIC CONGLOMERATE (Dive), 

 AND SODA-RHYOLITE, SODA- 

 RHYOLITE TOFF AND BRECCIA , 

 AND SODA-TRACHYTE (Dlr). 



LIMESTONE, MARBLE, DOLOMITIC 

 SLATE, ARENACEOUS DOLOMITE, 

 CALCAREOUS SLATE, ARENACEOUS 

 LIMESTONE, CALCAREOUS SAND- 

 STONE, IMPURE QUARTZ I TE, ARKOSE, 

 QUARTZ CONGLOMERATE, AND 

 GRAY SLATE. 



5000 



WHITE MOUNTAIN 

 MAGMA SERIES (wm)' 



NEW HAMPSHIRE 

 MAGMA SERIES (nh) 



OLIVERIAN MAGMA 

 SERIES (ol) 



SODA 

 AND 



-RHYOLITE DIKES 

 SILLS (sr) 



QUARTZ CONGLOMERATE AND 

 QUARTZ I TE. 



BLACK SLATE, WITH THIN-BEDDED 

 QUARTZITE, SLATE, AND VOLCANIC 

 MATERIAL AT BASE. 



SODA-RHYOLITE TUFF, BRECCIA, 

 AND VOLCANIC CONGLOMERATE; 

 CHLORITE SCHIST; CHLORITE- 

 EPIDOTE SCHIST; SLATE AND 

 IMPURE QUARTZITE. 



QUARTZITE, ARGILLACEOUS 

 QUARTZITE , GREEN SLATE, AND 

 BLACK SLATE. 



2000 k 



4000 * 



HIGHLANDCROFT 

 MAGMA SERIES (h) 



Fig. 11.21. Columnar section of the Littleton Moosilauke area. Reproduced from Billings, 1937. In addi- 

 tion to the sequence and character of the sedimentary and volcanic rocks, the time of intrusion of igneous 

 rocks is shown. 



