Daily Logging Report PB Landslide May 08, 1984 through May 09, 1984 .1113:= LOGGING P�.POE r�tsQ z
•
(—
Por aguese Bend landslide, Palos Verdes
BGnRLNG NO: Y2L DATE •
LeCATICN er BORL'iG
TrP3 Q' BORING: Rotary air: 5 /5$" tricone bit,
DAZE CO MEMMED: c/$/Kzi. DATE COMPLETED: 5/9/$4
US3 AFTER C0 PL3TICN: Crmundwatpr eonitorinv well
LOGGING REFERENCE POLiT: ELEV. feet
LOGGING BY: X,.T Xi z p
DepthLog
a c Description of Materials and Pr-+T i i Information •
•
Clayey sandy silt: brown; rock fragments of chert and dolostone. .
Sandy clayey silt: brown; rock fragments of porcelanite and very
fine gained sandstone.
10• Cla- - - silt: light orangish brown; rock
fragments of chert, porcet
lanite, and very fine grained sandstone.
•
Clayey silt: light orangish brown; rock fragments of diatomaceous
shale, and porcelanite. •
Cla e silt :and Bentonitie clay: light orangish brown and. bluish
gray-; rock fragments of porcelanite; dueling rate from 0' to 20' ,
10 gin./20'
Clayey sandy silt and Bentonitic clay: orangish brown and bluish
gray; rock fragments of porcelanite and very fine grained sandstone.
301 -: . Clayey silt: light brown; rock fragments of laminated chert and
porcelanite.
Clayey silt: light brown; rock fragments of porcelanite and shale;
gypsum.
Clayey silt and Bentonitic clay: orangish brown and very light gray;
40 rock fragments of chert and dolostones drilling rate 12 min./20' .
Clayey silt and Bentonitic clay: crangith-pink sh brown and very
light gray; rock fragments of chert; 8ypsum.
Clayey silts Down; rock fragments of dolostone.
Clayey silt: yellowish brown.
50'. Clayey silt and Qatorangish brown rock
say ; fragments of shale.
Silt- cia- and Clay: brown and orangish brown; rock fragments of
chert, porcelanite, and dolostone.
60' Silty clay: brown; rock fragments of shale, siltstone, and dolostilk
drilla^g rate from 40' to 60' , 10 min./20' .
Silty clay: greenish-yellowish brown; rock fragments of dolostone.
DAILY LOGGnG REPORT•
!:-
portugnese Bend. Landslide, Palos Tlerdes
MSG N0: 12L
Graphic log
Description cf Materials and Drilling Informatics
Silty clay.and Clay: arangisb brown.
Silty clay and Bentonitic clay: greenish brow and very light gray.
Drilling rate from 60' to 80', 7 min./20' .
80' -, Clayey silt: light greenish
gray; rock fragments of dolostone.
Clay: orangish brown, brown, mid gray; rock fragments of shale.
Clayey silts brown.
90' Slide plane between 90'- and92'.
drilling harder
•
Clayey silt and Siltstone: dark brown.
•
100' - Same as above.
Hole terminated at 102' .
Hole casedto 102' With 2" pvc; capped at base, 40' perforated, 62'
solid, from base to top.
Yater table: 5/11/84 93' 7.9"
10/22/84 93' 6.8"
•
•
•
•
•
•
igh
•
•
A