’*-■ V 
,4/ - i 
\ _v 7 
SECTION OF LOWER SILURIAN. 
In the Pahranagat Range, Nevada. 
Quartz Peak. 
\ 
Massive bedded gray limestone in layers from one x»o four 
feet in thickness. . rfUU 
OrtJiis, Murchisonia and Orthoceras are seen m the io^er 
layers, and R,eceptaoulitss raainmiiiaris and ru.elonga 
ta 150 feet up. 
ft 
3. Thinner bedded bluish-gray limestone that is snaiy in 
h Lac8 s« 
Fossils numerous. (See list under Mo.3) 
400 
K 
Evenly bedded layers of a dark bluish-black and bluish- 
- - +k-?v layers making more massive 
exposure to the influence of 
-i 
gr ay 1 inis 3 uo r is 
beds that breax up on 
one weather. . . n 
Receptaouiitss mammiilaris, Orthis Pogonipensis Oiohis 
tricenaria, Porambonites obscurus, Beilerophon -P- 
(same suedes in 204), rfyolithes ^ sp. undet., .jn o- 
oeras ran It itubu latum, Leperditia bivia, lllaenus 
crassioauda, 
4. Hard vitrou's white quartzite becoming tinged with a i0 ^“ „ 
dish color towards the base. 
5. Massive bedded dark iron-gray siliceous limestone. 150 
6 Bluish-oray and bluish-black thin bedded limestone wita 
"numerous fossils of Trenton limestone age, 30 
Zaphrentis sp?, Bryozoa 3 sp., Suiepuoin^no * 
Orthis testudinaria. 
7 Massive bedded dark siliceous limestone with a stratum 
7. Massiveoe almost made up «£ a species of 
Pentainerus like P,g»leatu 8j . tSe.g occur not ta. 
above the Trenton Limestone of No.b. 
' l Massive bedded gray siliceous limestone with occasional 
it layers of quartzitic sandstone and ohei... 
I Strike H.30* East, - Dip 20 North. 
m \ Summit of Peak. 
150 
tt 
rt 
2210 
