350 The American Geologist. June, 1902. 
Tse MELLENIA SERIES, 
The middle portion of Tick canyon, about three miles 
north of Lang station, affords the completest section of this 
series. Beginning at the foot of a lava peak just east of the 
main canyon and going southwest obliquely across the valley, 
the section is as follows, in ascending order, with thicknesses 
roughly measured : 
Type-section of Mellznia series in Tick canyon. Thickness. 
I 
. Brown basal breccia of lava fragments resting on lava and 
dipping tossouthwest 30ldegrees) +... eee cee 40 feet. 
2. Buff basal breccia-conglomerate, mostly of lava: some 
GOarse Sandstomexssstnatitiedsa yer Ai ectaeyee ei el eee 40 feet. 
3. Pink, coarse argilaceous sandstone; some lava pebbles,. 40 feet. 
4. Sandy stratum of light gray color, containing much white 
MALena like wt kavertilnen te yiesn ates eee Mares ereene ees - 50 feet: 
Light gray and pink, heavy-bedded sandy shales, ........ 600 feet. 
Then a fault brings up the lava and earlier sandstones and the series 
begins again. Beginning in an easterly branch of Tick canyon, resting 
on the lava and variegated shales and sandstones of the earlier series 
i Thickness. 
1. Brown basal breccia-conglomerate, mostly of lava trag- 
mentsrand” Pebbles. “tats ae sesso ete oc eee 150 feet 
(Note.—The variegated shales between lava sheets dip northerly 
at a high angle [being slightly overturned], say 60°, and the overlying 
series dips westerly at 30°, making a splendid non-conformity. The 
actual contact is clearly exposed and no fault is present.) 
2. Pink, light gray, light green and light brown, thick-bed- 
ded, sandy shales and fine sandstones dipping wester- 
or 
n 
ly 20° to 30° asndoes all)-of this Section 2.25 .aaee ae 700 feet. 
3. Brown, buff and greenish conglomerates, mostly of lava 
EDD ESS Ay. hye ede rave Rr tke oie Za Adays et es oe QOD CEE 
4. Pink heavy bedded sandy shales and green andstoness ... 400 feet. 
5. Buff, green and gray conglomerate (mostly lava pebbles) 
Ac (COALSes Sam SUOMES ht vere mice i tere ee eee 150 feet. 
Total, 1700 feet. 
This series begins a little west of Mint canyon, trends east 
to a point about a mile east of Tick canyon, (on the axis of 
the trough,) swings rapidly around to the southwest and 
then runs straight for several miles, giving out (by overlap of 
the next series) just short of Soledad canyon near Lang sta- 
tion. Its average dip on both sides of the trough is between 
20° and 30°. It is lithified into soft rock and gives rise to 
boulder-strewn and conglomerate-capped hills of no mean size. 
——— 7 
