Gruvee dive 4597 transcript portside view

lyricalwillingMécanique

22 févr. 2014 (il y a 3 années et 6 mois)

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Gruvee dive 4597 transcript portside view


Observer Karl Gronvold

22
nd

March 2010

First number is time GMT, second depth in meter, third is bearing

155
6 2804
Landing on heavily sediment
ed lobate flow and took sample

1600
Lobate
/pillows with few surface
scratches. Fresh

with little sediment cover

A crack 5 meters away from the sub about
-
20
-
30 cm wide and another
a little

bit
further

along
-

1643 2800
15.8 Lobate flow rather than pillows. More sediments than
recently. Continuous

filling of
depressions.

1701 2807
297

Still over

heavily sedimented loby flow

1703 2804 250.6 Still in loby heavily sedimented flow

Contact
More like pillow lavas
but

slightly loby

17
11 2785
254.3 Still

in fairly
coarse

pillows and driving close to a stee
p hill. Sediment cover
continuous in elongated lows. In between and on top of pillows

17
22 2778
327 Driving along steep
pillow

slopes. You
can see

that the pillows are very elongated
and
from

the flow structures that they are flowing down and under the s
ub.

17
24 2779
337.7 Still sailing a
long

the pillow slopes with similar sediment cover

Long
. p
illows with
similar flow structures

17
29 2773
335.6 The sediment cover seems to be
g
reater than before.


not greatly but significantly.
Topography of pillows
different as we are fur
ther away from the steep slopes.

Pillows getting more lobate

Diving east on a north fa
ce

Comment on the
octopus
-
like appearance and
continuity

of the pillow on
the slopes.

17
50 Talus/breccia ends

Sendiment slightly thicker but not ve
ry signifantly when crossing the saddle.

18
31 2781 112.04 Fairly certain that
there

is a contact between points 3 and 4 with slightly heavier
sedimentation near point 4 and less on the western part.

Enter steep broken talus.
-

Pillow breccia.

18
42 2683
110
.28

O
n the route

to point 8. Steep broken talus
. Broken pillows rather
than

broken
sheets. Very steep slope.

19
11 2683 140.8 Skipped over a

topographic

low. Fairly thick sediment



does more than
continuously fill depressions.

19
20 2678 106 Sailing past
very steep slope. With takus of broken up pillows but otherwise
elongated pillows
and lopes.

Sometimes 100%
talus

out of the window.

19
25 2678

186 Pure t
al
us in front of very steep slopes

Big
talus

pieces.

19
2
7 2675 110 Past over to flatter
terrain but
still covered by ta
lus.

Sailing over flat area but still
covered by
talus
.

19
40 2677 107 Less
talus



Moving over from
talus

to pillows

not very glassy. Looks like glass has
been
-
weathered


off. The steep slope may help.
Difficult

to access sediment thickness but appears
not to be heavy.

19
50 2680 115
Passing

very steep slopes on port side.

Rocks changed from elongated pillows and
lopes to broken off pillow ends. Pillows do not have very marked glass surfaces. Sometimes see glass
m
icro

screes that appear to be very small disintegrated sheet units.

19
56 2681 269. Crossing over ta
lus
first

coarse, then finer and then coarser again

19
59 2694 141 Passed to coarse pillow from the
talus
. Sediment
continuously

filling lows.

20
01 2691 116
Following a very sharp drop Very deep and broken pillow ends exposed in the wall.


Following the fault some distance heading 106. Drop could be 40 meters minimum.

Sailing in direction 80 following the vertical cliff.


20
06 2692 146 Not over the vertical cl
iff but with a

pillow lava slope on the pert side


very glassy
stuff. Sediment not totally continuous in lows.

20
16 2703 Slightly more sedimented and flattening topography.

Plus 2min. Lavas not very glassy and sailing along a steepening slope.

20
35 2726 8
4.9 Sailing along a hill slope with elongated p
illow lava coming downhill. S
edimentation
on the thick side.