F. L. Ransome — Lava Flows of California. 363 



of the thin-sections, the rock of the Table Mountain flow is 

 more basic than the biotite-augite-latite, while that of the 

 Dardanelle flow occupies an intermediate position. Titanic 

 acid is present in all of the analyses, and usually in notable 



Table of Chemical Analyses of Sierra Nevada Latites. 



SiOv 



TiO a .. 

 A1 2 3 



Fe 2 3 



FeO_. 



MnO 



MgO 



CaO. 



BaO. 



SrO . 

 Na 2 



K 2 0_ 



Li a O. 



H 2 above 110' 

 H 2 below 110' 

 P a O B 



Sp. gr. 



I. 



II. 



III. 



IV. 



V. 



VI 



56-19 



59-88 



56-78 



59-43 



61-09 



62-33 



'Q3 6 



•69 



•998 



•946 

 115 



•990 

 1-38 



i - oi8 



1-039 

 105 



16.76 





16-86 



1668 





17-35 



•162 

 3-05 





•163 

 3-56 



•161 

 254 





•168 

 2-98 



"019 



4-18 





"022 



293 



'015 

 3 48 





•018 

 1-63 



•058 



•10 





'040 



•048 

 tr. 





•022 

 •08 



379 





3-41 



1-84 





1-05 



•OQ4 



6.53 



5-08 



•085 

 6-57 



'046 

 409 



494 



'026 

 3 23 



•116 

 •19 



•090 



•117 



■073 

 •14 



•088 



'057 

 •24 



tr. 







tr. 





•05 



2-53 



3*90 



3-19 



3-72 



3-69 



4-21 



'040 

 4*46 



•062 

 5-06 



'051 

 3-48 



'059 

 5.04 



-059 

 5 27 



■067 

 4-46 



•047 

 tr. 



'053 



'036 



'053 

 none. 



'055 



•047 

 tr. 



•66 





1-21 



•72 





•75 



•34 





•15 



•27 





•44 



•55 





•42 



•58 





•29 







C0 2 '18 



Zr0 2 '08 



CI -05 





FeS 2 -08 

 C 11 



10002 





99-89 



10004 





100-33 







2-67 



2-61 





2-49 



VII. 



65-81 



1-096 



•54 



15-11 



•146 



1-85 



"on 



1-40 



•019 



•37 

 -009 

 1-98 

 •035 

 •10 



2-59 

 -041 

 524 



•23 



238 



I. Augite-latite. Table Mountain Flow. Tuolumne Table Mt., W. of Sonora. 

 (36 S. N.) W. F. Hillebrand, analyst. H. W. Turner, 14th Ann. Rept. 

 U. S. Geol. Survey, p. 491. 

 II. Augite-latite. Table Mountain Flow. 3 mi. E. of Big Trees. (86 S. N.) 

 P. Fireman, analyst. H. W. Turner, 17th Ann. Rept. U. S. Geol. Survey, 

 p. 727. 



III. Augite-latite. Table Mountain Flow. Near Clover Meadow. (1422 S. N.) 



G-. Steiger, analyst. 



IV. Augite-latite. Dardanelle Flow. 4 mi. S. W. of Clover Meadow. (1419 



S. N.) H. N. Stokes, analyst. 

 V. Biotite-augite-latite. 3 mi. E. of Big Trees. (85 S. N.) P. Fireman, analyst. 



H. W. Turner, 17th Ann. Rept. U.S. Geol. Survey, p. 727. 

 VI. Biotite-augite-latite. 4 mi. S. W. of Clover Meadow. (1420 S. N.) W. V. 

 Hillebrand, analyst. H. W. Turner, 17th Ann. Rept. U. S. Geol. Survey, 

 p. 727. 

 VII. Biotite-augite-latite (?). Near mouth of Griswold Creek. (1866 S. N.) 

 G. Steiger, analyst. 



amount, indicating that the magnetite is probably titaniferous; 

 Analysis number VII, in addition to being unusually high in 

 silica, is low in lime and magnesia, thus approaching more 

 nearly the chemical character of a trachyte. This is a glassy, 



