-10=

Shale, dark grey, thinly bedded.eccsesceeeseesee 1,40
Sandstone, brownish grey, medium-grained........ 640
Conglomerate with black, bean-size chert pebbles 0.5
Sandstone, brownish grey, medium~grainedseseseee 3720
Shale, dark grey, thinly bedded....sssscecseseves 200
Sandstone, brownish grey, thinly bedded........- 2
Shale, dark grey; interbedded with dark grey
SANS LON Cle slalcieisieis'wielsiolniain oveisialeve'eis eistals slele eels Ole ©,
Sandstone, brownish grey, medium=grained, bedded 18.5
Shale, sandy, dark QVCY cee cereceenvornecsesecses Del
Sandstone, dark grey, fine-grainederccrcesecssoee 200
Shale, dark grey; with ironstone concretions at
LOD iate sibleyetere/wioiovele aeiere sloceibiyleielorbisiezererb eheieletete elem 160
Sandstone, brown, fine-grained, hard.....escence 205.
Shale, dark grey, fissile; interbedded with fine. .,
SANASTONG cecescccescerecesessscecseesecee ve 720.
Sandstone, dark grey, medium-grained....seeeseee 500. -
Shale, dark grey, fissile; interbedded with fine- We teh
PrAINed SANGStONG, s/s /seielcreie's'eleieieielelala’s el eleiolocktojoil dali On wantyy
Sandstone, grey, medium-grainedesesseveseeveveos 409
Shale, dark grey, Pissiler.ccecssccesseeceeesess 109
Sandstone, brownish grey, medium-grained......+- 6.0
Shale, dark grey, fissile; interbedded with
SLLESCONS ee ecewccsserveevcrevcsncesescsecss
Sandstone, dark grey, medium-grained....eecceces
Shale, dark grey; interbedded with some sand- ;
B CONG ls sates cal iecleserstlate Sues ateieie aie ries kei crete s 15..0
Sandstone, dark grey, fine-grained.seessccesesee 145.
Shale! darks grey ut SSil'G slelelers sleleieie(cleie ole'e e/e/sie vielen tiie
Sandstone, dark grey, fine-grained, hard...e.e.+ Set
Shale, dark grey, fissile; ironstone concretions 17.0...
Sandstone, dark grey; interbedded with dark grey
SLLEStONC see eeeeeceeenee eect eneerseneeeees 30 0

20

Total ec tN 222 43

a Elsewhere, where observed, the transition zorie was

not nearly as thick, The complete section along Sikanni Chief River
was not measured, but has 2 calculated thickness:above the ‘transition
zone of 3,300 feet. The following section gives a general idea of
the composition of the greater part of the formation as Reaper Tone
Buckinghorse River west of the Highway :

“Top of Section Thickness:
; (eR ;

Overlyine Mede-sSileannt formation
Bedded and semi-bedded, dark grey shale, with
a few ironstone concretions and some
.; interbedded thin sandstone beds.....cee. Ly OOO
Fine-grained, dark grey sandstone, sandy shale

ANA SHALE. cers ccsceescsenrvcecssevercece 50
Dark grey, chunky shale with sparse ironstone . vt

CONCLETIONS oc ccecvcccecnneccvceesewee ewe: °878
Dark grey, fissile shale and thin sandstone

beds with a. few CONCretiONS..ceoewoesece - 75
Dark prey, fissile shale containing large,

limy, light buff weathering concretions. . 100

_ Bedded, fissile shale with ironstone beds con-
taining a few scattered ellipsoidal con-_
CLEUMOMS setetoie wileleiere)ctoietenelejersieveleterelelerevetencior sya 825

_ Dark grey, chunky shale with numerous, iron- ~

SCONE CONCH EDAON Siecle aicieitava tals vere slate erates 375