IGNEOUS AND CRYSTALLINE ROCKS. 63 
PF a Il. Lol og 
l 
BLOG, scnsayapapnaenreny paladin Ss becwedinns sobsagtuosauandan 64.27 | 65.50] 65.66 | 67.49 67.95 
BUS OS cays si etree Rages ei catasues eset saeyaesapereva one Sled erdeslyeraiueancdns 17.84 | 14.94] 15.61 16.18 14.98 
COG cme cay NpARRNaa ed Kainmawcndnadireddacharh aa niededadedeeaenae 3.36 1.72 2.10 1,30 2.33 
Pits waren mmmena We cicin aad oy Al wauead mae Haale weed Seeaaanstsnnn™ 1,29 2.27 2.07 1.22 95 
ME Oe cc ocusaierais Kecinceicta aa Aydaciae dasa G/siseeiancinlsMiatbrempeiewetrceranenesie ASE 2.00 2.97 2. 46 1.34 1.42 
WE. Jcctaiprmuahatsdidmak sbi watsasienice mam araenine waa boaummenadien’ 3. 42 2.33 3. 64 2. 68 3.98 
Na:O 3.84 5. 46 3. 65 4.37 4. 39 
fae Tbe 2. 48 2. iG 2.03 2.40 2. 86 
20 al Sikes 37 
120 above 105°... 1.32) 1543 l AOE eee ‘61 
iO. 32 45 1.37 13 245 
Btegici Sredars 16 09 | trace 13 07 
sbiicreneeannacneeek eset Sore none 20 | none 08 -09 
Seeihentedemtoeetmieuscun Renee siswan ee UB | sessncreienars [aie wavens 28 
NE ee eee trace? |........|........| trace? 
Aaeeaeleiseince mihi ateceindeere presasvedes 08 Vs ecicncel= BG: |e cecil ewes 
saieinuwipaiclaiadigsrstnemielaystayg omens trace 06 13) |sovesven il 
SGiSSEE RAGGA GH Ema asa ewaakies Cone anes hemes Eee DONC |ocxezuce 12 eases. |saesoas 
100. 33 | 100. 25 | 100.27 | 100.01 | 100. 79 
3. ABSAROKA RANGE. 
CRANDALL BASIN. 
Rocks described by Iddings in Mon. XXXII, pt. 2. The analyses also appeared 
in Bull. Philos. Soc. Washington, vol. 12, p. 204. 
A. Gabbro porphyry, Hurricane Ridge. Camptonose. Contains augite, plagio- 
clase, hypersthene, biotite, magnetite, and a little olivine. Analysis by L. G. 
Eakins, record No. 1089. 
B: Basalt flow, north side of Timber Creek. Andose. Rich in olivine, augite, 
and magnetite. Analysis by Eakins, No. 1087. 
C. Basalt dike, ridge south of Hurricane Ridge. Shoshonose. Like B. (‘ontains 
also labradorite and a little orthoclase. Analysis by Eakins, No. 1087. 
D. Mica gabbro porphyry, Hurricane Ridge. Camptonose. Contains plagioclase, 
augite, hypersthene, biotite, and magnetite. Analysis by Eakins, No. 1089. 
E. Mica gabbro, Hurricane Ridge. Andose. Like D, with some orthoclase and a 
little quartz and olivine. Analysis by Eakins, No. 1089. 
F. Basalt-glass breccia, ridge south of Indian Peak. Andose. A glass showing 
crystals of olivine, augite, plagioclase, and magnetite. Analysis by Eakins, No. 1087. 
A B c. D E F 
53.56 | 53.71 53. 89 
16.07 | 18.00 18. 81 
3. 21 3.99 4.92 
5. 29 4.05 2.81 
7. 23 5.19 3.29 
8.77 6. 88 5. 42 
3. 06 3. 50 3. 65 
1.94 3.10 2.98 
19 55 2.99 
68 -74 -49 
18 38 52 
il 224 17 
100. 29 | 100. 33 99.94 
