encoding utf-8
survey TrenchPassage -title "Trench Passage"
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units clino compass degree
units length meter
team "Ben Cooper" instruments # Instruments
team "Julie Hesketh" notes # Note taker
instrument length "Ben's Bosch DLE50 laser rangefinder"
instrument compass "Ben's SAP #7"
date 2007.12.08 #CHECK DATE - same as RI
#declination -2.937 deg # BGS at 2007.12.08 (2007.94) 51.2987N 2.71038W
# http://www.geomag.bgs.ac.uk/gifs/wmm_calc.html
declination -2.38 deg # Allign to grid, Grid North +0.5535 deg
# LRUD taken in terms of direction of Survey (not the leg if reversed)
data normal \
from to length compass clino left right up down # station Nr
flags duplicate
MW50 MW51 5.81 40.5 +5 [0.6 1] [3.0 2.5] [8.5 2] [0.6 1.5] # 51 Estimated LRUD
MW50 MW52 2.26 67 +33 6 3.0 7.5 0 # 52 Estimated LRUD
extend left
MW52 MW53 7.11 295 +24 5.6 0.9 7.0 0.2 # 53 REVERSED
MW53 MW54 12.82 291 +36 0 3.5 0 1.5 # 54 Top of LH Wall
data normal from to length compass clino
MW54 MW55 7.90 322 +6
data normal from to length compass clino left right up down
MW54 2 7.51 093 -34 [3.2 0] [0 4.7] [0 4.7] [1.5 1.7] # 1-2
2 2a 5.54 120 -40 0.8 5.5 7.0 2 # 2a boulder in floor (see MW.Leg2)
data normal from to length compass clino
2 2b 10.8 - UP # 2b - Aven
MW53 MW56 18.1 128 -5 # duplicate legs from MW
MW53 MW57 16.5 177 -5 # duplicate legs from MW
equate MW53 2a
flags not duplicate
extend right
data normal \
from to length compass clino left right up down # station Nr
2 3 8.55 173 -28 8.6 0 3.0 0.7 # 3 bottom of overhang
3 4 6.93 136 -26 6.5 3.0 3.0 0 # 4 mud on floor edge of stream
4 5 4.35 208 +08 6.0 0 2.0 0.4 # 5 RH wall / entrance to Trench
5 6 7.39 137 +24 5.0 0.5 2.1 1.0 # 6
6 7 5.38 151 0 6.0 0 0.3 1.4 # 7 on roof just before where stream comes in
data normal from to length compass clino
6 6a 2 61 0 # Est leg to Crystal Dome
6a 6b 8.6 - UP # Crystal Dome Aven
data normal \
from to length compass clino left right up down # station Nr
7 8 7.95 135 0 2.8 1.5 0.4 1.9 # 8
8 9 9.29 130 -10 2.5 1.4 0.8 0.5 # 9
mark 9 painted
flags duplicate
9 10 4.00 136 -02 0.2 1.6 0.3 0.2 # 10
#11 9 7.40 325 +02 # 11
9 11 7.40 145 -02 0.2 1.5 0.2 0.5 # 11 est LRUD
data normal from to length compass clino
11 12 2.8 207 -03 # 12 under 2" airspace, now dug,
# 12 now dug into Thief's Chamber
flags not duplicate
# End Passage of Plank Chamber (Plank Grotto)
date 2008.03.08
team "Ben Cooper" instruments # Instruments
team "Tim Francis" notes # Note taker
instrument length "Ben's Bosch DLE50 laser rangefinder"
instrument compass "Ben's SAP #7"
#declination -2.887 deg # BGS at 2008.03.08 (2008.27) 51.2987N 2.71038W
# http://www.geomag.bgs.ac.uk/gifs/wmm_calc.html
declination -2.33 deg # Allign to grid, Grid North +0.5535 deg
data normal \
from to compass clino length left right up down # station Nr
3 A2 129.3 -08.0 16.56 [8.6 4.3] [0 0.8] [3.0 0.8] [0.7 0.2] # [3@two A2]
A2 A3 090.6 -12.4 3.37 2.4 2.2 1.4 0.2 # A3
A3 A4 132.0 -18.3 6.23 4.1 0 2.0 1.0 # A4
A4 A5 089.2 -10.3 8.20 1 2 1 .3 # A5 Est. LRUD
# A5 is tip of rock at end above sand
flags duplicate # a couple of stations to fix side wall
A2 B1 288.0 -10.8 5.79 [0 3.2] [8.6 3.8] [3.0 2.7] [0.7 0.3] # B1 is top of rocks close to drop
data normal from to compass clino length
B1 B2 196.2 +24 4.99 # B2 is LH corner of Trench Passage
flags not duplicate
# Into Thief's Chamber
equate 9 D1 # D1 = 9
data normal \
from to compass clino length left right up down # station Nr
D1 D2 140.4 -00.8 4.95 [2.0 5.7] [1.3 2.5] [0.8 0] [0.6 0.4] # D2 is edge of rock ceiling (step up immediately after)
D2 D3 158.3 -07.5 3.4 0 0.9 [0.5 0.2] 0.2 # D3 within mud trench just before break-through
D3 D4 205.2 -02.8 5.24 0.3 0 0.6 0.2 # D4 is corner of mud trench beneath ceiling-rift
D4 D5 150.2 +11.7 2.12 3.1 1.3 0.8 0.7 # D5
D5 D6 269.0 +01.4 5.4 [1.3 .3] [3.1 .3] 0.2 0.7 # D6 - Est. LRUD. Blind rift, not entered (to protect mud floor)
D5 D7 117.2 +01.6 2.53 4.7 2.0 1.8 0.8 # D7 - on stack of boulders below aven
data normal from to compass clino length
D7 D7a 186.8 +81.8 13 # D7a to visible roof of aven
data normal \
from to compass clino length left right up down # station Nr
D7 D8 101.6 -10.5 9.24 1.4 4.6 3.0 0.9 # D8 - Tip of small straw (1cm long) on underside of overhang
D8 D9 131.1 -15.4 2.34 0.5 0.6 0.1 0.6 # D9 - Into dig
D9 D10 206.5 -20.8 2.6 0.7 0 .3 .3 # D10 within dig Est LRUD
data normal from to compass clino length
D10 D11 183.2 -31.1 1.65
data normal \
from to compass clino length left right up down # station Nr
D8 U9 172.2 00.0 2.48 1.7 2.6 5.4 0 # U9 up slope into climb at end. Note: Up is onto roof, not into roof-rift
U9 U10 091.7 +42.8 2.97 0 2.0 4.0 0 # U10 on LH wall on floor of slope
U10 U11 121.9 +32.9 5.99 .4 .4 .4 .4 # U11 Est. LRUD. back of obvious alcove
data normal from to compass clino length
U10 U12 131.3 +56.7 11.74
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endsurvey