Texture Color 1 Description 1 &F

sudace silty clay, dark grayish brown, smooth, common worm tubes, ophiurids, rare m a l l dropstones and mud clasts

silty clay, homogeneous, dark grayish brown, at 4-7 cm dark gray burrows (2-3 mm 0)

silty clay, homogeneous, dark yellowish brown, horizontal brownish and grayish streaks and common brownish rnottles

clayey silt, slightly olive with brownish mottles and rare dropstones (2-5 mm 0) ...

silty clay, dark yellowish brown, intercalations of stiff and soft layers

PS21 59-4 (GKG) Nansen Basin ARK V!II/3 ^(ARCTIC 91)

Recovery: 0.27 m 83' 56.9' N, 30' 17.1 ^' E Water depth: 4010 m

-1

l ~ e x t u r e Color ! Description ! ~ g e

Surface silty clay, dark yellowish brown, soft, slightly sandy, srnooth. comrnon planktonic !oramintfers

2 5Y412 i siltv clav dark qrayish brown hornoqeneous stiff

i I

loyR313i

clay, dark brown, hornogeneous, brownish and grayish horizontal I I

,

streaks at 13-16 crn

1 no visible slructures sharp boundar; ^I

clay, brown to dark grayish brown, sticky, poorly consolidated disturbed during coring, possibly originally faintly laminated

'OYR412 - _{- - - -} - - cgreca&hg w3sJpujdJn IJlis~aland gdcau~e^pn~iderabje dislyrbbnce

_

clayey sand, dark yellowish brown, larninated transiTionarboundary upper Part o! turbidite

transitional boundary sand, dark gray, dark yellowish brown in upper part, fining upwards

lower part of turbidite

color varies between olive gray and dark grayish brown, poorly consolidated, in sorne parts heavily disturbed

Recovery: 0.92 m 85' 26.4' N, 44O 20.3' E Water depth: 4005 m

Description

...

black clas! (weathered pyrite?) at 64 crn

PS21 61 -3 (GPC)

clay, olive gray, srnooth, even surface, rare worrn feeding traces, (pseudofaeces) rare benthic forarninifers

1 5Y412 clay, soft, olive gray with slight brownish horizontal streaks and rnottles

5 Y W l clav. sott. olive arav

IflYRV?! siltv clav.verv där aravish brown

10YR4121 ciay, soft, dark grayish brown with cornrnon light olive grayish mottles I _I

1

_I

1 OYR412' clav, stiff. dark aravish brown l

lOYR3\3; sdty clay, dark brown, with slight olive rnottles, dark olive borrows at 28-30 crn

1

2.5Y412

1

clay, dark grayish brown, with slight brownish horizontal streaks

l 1

PS21 62-1

(GKG)

Recovery: 0.44 m

Nansen Basin 85' 47.7' N, 50' 49.6' E

ARK VIII/3 (ARCTIC 91)

Water depth: 3981 m

Jlhology]

l ~ e x t u r e Color

1

Description

1

Age clay, olive gray, srnooth, even surface, one Actinea,

srnall spots (0.1 rnm 0) of grayish black color

2.5Y412 clay, dark grayish brown, soft

lOYR3121 silty clay, very dark grayish brown, 16-1 1 c m with cornrnon planktonic torarninifers I I

Y clay, grayish brown, soft, with slight grayish horizontal streaks

... . . . . . . . .. . . clay, dark grayish brown, soft, with slight grayish horizontal streaks

Recovery: 0.23 m 8 6 O 14.5' N, 5 9 O 14.0' E Water depth: 3047 m

fl

Ilexture Color

1

Description

I I

silty clay, dark brown, srnooth even suriace, cornrnon planktonic forarninifers

1

rare grayish rnud flakes (1 crn B), 1 bivalve

1 OYR313 silty clay, dark brown, hornogeneous, cornmon planktonic forarninifers ...

silty clay, dark grayish brown rnottled with dark brown cornrnon plankionic forarninifers and rare benthic forarninifers

burrows (1 crn 0), dark brown

I

_I

.- I

s: ^ ^3G

n _I

- I

I

40- ⁱ

i

-

I ⁱ

50 ^'

PS21 63-3 (TWC) Gakkel Ridge ARK VIIIl3 (ARCTIC 91)

Recovery: 0.72 rn 86O 14.5' N, 59O 14.5' E Water depth: 3075 rn

!

Descriplion _{A L T}

presumably double penetration

PS21 63-3 (GPC)

110YR413

i

clay, dark brown, lighter diffuse horizon between 18-20 cni

. . . -transitional boundary

i 2.5Y412

1

sandv clav. dark grayish, more grayish towards the base

10YR514 ÑÑÑcl yellowish brown

i

1

^{2.5Y514 1} sandy rnud, light olive brown, frequently scatlered lighter mud-clasts I

P.....

llOYR4/4i sandy SIII, dark yel\owish brown, scaltered mud-clasls i !

i i

^! sand lens. pebble at 152-155 cm sand layer at 149-1 50

Recovery: 0.33 m 86O 20.1 ' N, 59' 16.0' E Water depth: 2030 m

Jthology 1

Texture Color

1

Description

1

^W

q , f à £ à sandy silty clay, dark grayish brown, smooth surface, common planktonic and benthic foraminifers common dropstones (1-10 mm 0 ) , 1 big dropstone (4 crn 0), abundant sponge spicules

sandy silty clay, dark grayish brown, common plankonic and benthic foraminifers, common dropstones (1 -5 mm 0), abundant grayish and brownish mottles

... uneven boundary . - sandy silty clay, olive brown, common plankonic and benthic

foraminifers, common dropstones (1-5 mm D ) ,

common grayish and brownish horizontal streaks and mottles

PS21 64-6 (TWC) Gakkel Ridge ARK VIII13 ^(ARCTIC 91)

Recovery: 0.57 m 86' 15.9' N, 59' 21.4' E Water depth: 21 1 1 m

1

^Lithology Texture Color

1

Description

I

PS21 64-6 (GPC) Gakkel Ridge ARK VIIIl3 (ARCTIC 91)

Recovery: 2.38 m 86' 15.9' N, 59' 21.4' E Water depth: 21 11 m

Description

1

^Agc

1

^5Y4,2

;

^s~lty rnud, olive gray, Ihm slightly darker mottled layer on top, I

e I

i 5Y413 i fine silty rnud 1

. . . - - - - . . .

-

- -

- - - - . . . . . .

-

- - - - - - - - - . . . _Ã 1: 1 : 5YifE 1':. m dI & l.':gw; ightlxb&d.:nCc&o"ndirie~:~ . . . . : : :: . :

- - - - - - - - - ... ... ... - - - - - - - - . . . . . . . . .

- -

- - -

- 1

^{5Y413 5Y412}

¹

; silty rnud, olive gray, hornogeneous, slightly mottled, dark spot at 67 crn sandy siit, olive, hornogeneous, slighlly rnottled, brownish sandstone at 52 crn

--- ... i

... ¹ silty, sandy rnud, yellowish brown, abundant rnud clasts (yeilowish, gray,

1 10yR5'6

black), unsorted, big clast at 96 cm, hornogeneous

... _I

yellowish brown (at 110-120 crn grading brown lo dark brown), sand layer at 130 cm, four rnudclasts, sand layers, black spot

. . .

...

.

-

I

^2.5Y514

1

sandy silt, light olive brown, very hornogeneous, upper boundary color grading over 1 crn, 231-238, block, crust, yellow,

- 1 1

rnanganese nodule or Pari of crust layer

Recovery: 5.67 m

Lithology JTexture;

Gakkel Ridge

86' 26.8' N, 59' 57.6' E Water depth: 201 1 m

Description

. . clay.darkbrawn .. . . sandy clay, olive brown, bioturbated with infill of Sediments of the overlying uni ciay, brown, with few sand, bioturbated, 19-21 cm yellowish brown

. . . sand, olive brown, with lenses of clay from the unit above

sandy clay, olive brown

. . . sandy mud, olive brown, darker towards top, claylmud clasts, faint laminations, mottled

sand lense at 115-120 cm, Sand laminae at 88, 103 c m

sandy mud, very dark gray, thin laminae between 177 and 230 cm, few black mud clasts, particularly in the upper part

sandy clay, olive gray, lighter at top sandy mud, olive (top) to dark olive (base), abundant Sand laminae, few coal clasts ciav, vew dark brown. liaht iaver on IOD

dro~stone. 1 c m 0 at 277 c m sandy mud, olive to dark olive, darker at 290-300 cm

sandy mud, olive gray,

sandy mud, very dark gray, abundant Sand layers at the lower Part (distal turbidites ?), spacing of sand laminae is about 1 cm

sandy clay, olive, mottled, Sand laminae at base, color changes On top

sandy clay, very dark gray, Sand laminae at top (488-472 cm)

PS21 65-1 (GPC) Gakkel Ridge

A R K

VIIV3 ^{(ARCTIC 91)} Recovery: 5.67 m 86' 26.8' N, 59' 57.6' E Water depth: 201 1 m

-1

Texlure Color , Description , Age

5Y311 : sandy ciay, very dark gray, Sand lense at 502-504 cm

...

sandy clay, olive to olive brown, sand lenses at 533-539 cm

...

-

- - -

-

- - - ^anov rnud, olive brown. sand laminae on IOD

-

- - -

-

- - - _{- -} - - -

- - - - - - -

5~413-311i clay, olive brown to very dark gray, sand layers at 549, 555 cm

i

I

_I

I

PS21 65-1

(TWC)

Gakkel Ridge ARK V11113 (ARCTIC 91)

Recovery: 0.88 m 86' 26.8' N, 59' 57.6' E Water depth: 201 1 m

1 0 ~ ~ 4 1 3 1 sandy mud, brown, several mud clasts, dark brown at top

I I I I I

PS21 65-3

(GKG)

Gakkel Ridge

ARK

VIII/3 (ARCTIC 91)

Recovery: 0.36 m 86' 26.4' N, 60' 04.3' E Water depth: 1794 m

[ T e x t u r e Color

1

Description

1

^{A g â}

sandy, silty clay, dark grayish brown, smooth surface, common benthic and planktonic foraminifers, common dropstones (1-10 mm D), one dropstone 40 mm 0, abundant sponge spicules, bivalves (1 cm 0

streaks and monles

1 0 Y R 5 1 3 sandy, silty clay, brown, with slight grayish horizontal streaks

10YR413 sandy, silty clay, dark brown, grayish mottles

I I

Recovery: 2.27 m 86' 26.3' N, 60' 6.1 ^' E Water depth: 1835 m

Texture Color

1

Description

IOY R313 1 sandy clay, dark brown Y 5

1

ciay, brown

OYR313 clayey mud, dark brown

~ : UI A ~ r o w n . w m w ~ e s

oyR413 medium to coarse sand, dark brown beddina visible

Pecten sp., 1.5 cm 0

I

Glast of sandy silt

I

Y 5 4

1

sandy mud, yellowish brown

uneven surface- OYR514 1 sand. vellowish brown

silty rnud, folded and contorted layers, color varying between yeliowish brown and light olive brown

5 ~ 5 / 3 & c l a ~ , olive, disturbed

T-

silty rnud, folded and contorted layers, color varying between yellowish brown and light olive brown

sand lense

O Y 4 4

1

sandy mud with lighter and darker Parts, contorted ? The upper 120 c m of the core has slided

upwards causing faulting and disturbance of fhe layers

PS21 66-2 (GKG) Gakkel Ridge ARK V11113 (ARCTIC 91)

Recovery: 0.37 m 86O 51.6' N, 59' 45.9' E Water depth: 3636 m

Lfthologyl

~ e x t u r a Color

1

Description [ ~ g e s r f a c e silty clay, dark brown, soft, smooth surface, cornrnon plankionic foramin~fers, cornrnon

bivalves, qray rnud clasts (1 -1 0 mrn 0) l

I I

...

1

silty clay, slight grayish horizontal streaks, grayish burrows (2-5 rnrn 0 ) l

Recovery: 0.54 rn 86' 51.4' N, 59' 48.2' E Water depth: 3555 m

Description

PS21

66-3

(GPC)

Recovery: 2.14 m

Gakkel Ridge ARK VIIIl3 (ARCTIC 91)

86' 51.4' N, 59' 48.2' E Water depth: 3555 m

rexture Color Description

clay, dark brown, soft, moHled, small lenses of sand at 17 crn

...

clay, olive brown, mottled

...

clay, brown, mottled, sand laminae at base

...

clay, light olive brown, mottled, sand lamina at 79 cm and at base

clay, dark yellowish brown, common very dark brown (lOYR2.5/2) spots, mud clasts? at 160-214 cm,

dropstone at 159 cm

A l

corjng disturbance

V I

PS21 67-1 (GPC)

OYR3121 clayey mud, very dark grayish brown, soft, very homogeneous I

I

!

4 ' C ay, ar grayish brown, homogeneous, slightly mottled, thin bends of silt 1

?o%4!2=sAnd a%K kmy

10YR4/6Ñ,ÑÑ cby, dgrk yellowish brown, mbr grading

I

clayey mud, dark grayish brown, homogeneous I

clayey mud, dark brown, homogeneous

=sand, dack gray, heavy minerals?

1

clayey rnud, dark brown, homogeneous 1

=siH, da* yellowish brown silty mud, dark brown

sand, dark grayish brown, homogeneous, fining upwards

coarse to medium sand, very dark gray, fining upwards

coarse to medium sand, olive to olive gray, fining upwards

rounded dropstone ( 3 c m 0 ) at 315 c m

!

mixture of sandy, in parts silty matrix with coarse rounded to unrounded pebbles, olive gray, mud clasts (dark gray, 3 crn 0 ) , sedimentary rock, numerous volcanic ashlglass conglomerate, unsorted

(debris flow, proximal turbidite ?)

silty sand to sandy silt, olive gray, layered, slightly graded within layers _fine sand to silty clay, olive, fining upwards

numerous changes of clay and sandy to sandy siit layers, layers fining upwards

clayey mud, very dark gray, homogeneous

sand, fine to medium graded, very dark grayish brown

sandy mud, hornogeneous, very dark gray

sand layers, fining'upwards frorn medium Sand to silty mud

Recovery: 6.40 m 86' 56.7' N, 59' 0.9' E Water depth: 4434 m

'exture Color I 1 Description

1

^{~ g e}

1

sandy rnud, hornogeneous, very dark gray

sand layers, fining upwards frorn medium sand to silty rnud

4

1

sand and clay, alternating layers, olive gray (distal turbidites ?) 2 5 Y 3 0

1

, sand and clay, alternating layers, very dark gray (distal turbidites ?) 2 , 5 y 3 1 sand, fining upwards, very dark grayish brown

sand. finina U D W ~ ~ ~ S . verv dark aravish brown

2.5Y310 sand and clay, alternating layers, very dark gray (distal turbidites ?)

PS21 67-2 (GKG) Gakkel Ridge ARK V11113 (ARCTIC 91)

Recovery: 0.42 m 86' 56.1 ^' N, 59' 04.5' E Water depth: 4425 m

[ ~ e x t u r e color

1

Description

1

^{~ g e}

sandy, silty clay, dark brown, sudace partly srnooth, partly undulating with four "mounds"

(2-3 crn high, 12 crn 0 ) , black grains (1 rnm 0 ) , iron-coloured crusts (sand size)

10YR412 silty clay, soft, hornogeneous

:iOYR414 =san@y, s~lly ciay, laminae, redd'~h brown

i lOYR4121 clay, dark grayish brown, some horizons slightly greyish streaks

silty clay, dark grayish brown, soft, few horizontal grayish streaks 2,5y4/2 ...

silty clay, dark grayish brown, soft, slightly brownish laminae (1-1.5 cm)

PS21 67-1

(TWC)

Recovery: 1.69 m

Gakkel Ridge 86' 56.7' N, 59' 0.9' E

ARK VIII/3 (ARCTIC 91)

Water depth: 4434 m

1

^{10yR313 * -,,}

. ,.

clay, brown, soft, olive brown with sand layers with rusty brown color at base

1

j:Tiz$zl clay, brown, rnottled, dark yellowish brown at 24-27 Cm, sandlclay layers at b a s i

clay, sequence of dark yellowish brown and olive brown, mottled

1

..- -

i i q I

"l 10YR414I clav. dark aravish brown. mud clasts at ~ O D . vellowish brown at 65-66 c m 10YR414-518 =Sand (manganese), yeilov#ish brown lo black, Fe-hydroxide

1 0 Y R 4 1 4 sandy to silty mud, dark yellowish brown, mud clasts

i I 1 l

A

1 10yR3131

clay, brown, soft, sand layer, dark brown at base, separated by ,hin clay lzyers

1

, U , r,.,,J

A

1

. . . . . 1 clav. brown. mottled. dark vellowish brown sand laver at base

Recovery: 0.39 m 87' 30.6' N , 55' 56.0' E Water depth: 3846 m

l ~ e x t u r e Color

1

Description

1

^AgC

1

silty clay, very dark grayish brown, rare plankionic forarninifers, rare small brownish mud clasts (1-2 mm), rare benthic forarninifers, rare bivalves (0.5-2 cm)

PS21

68-2 (TWC) Recovery: 0.34 m

rexture Color

sandy, silty clay to silty clay, greenish brown to brownish, irregularly colored, no clear stratification but irregular texiure with sandy, silty clay and silty clay (debris flow ?)

Gakkel Ridge ARK VIIIl3 (ARCTIC 91)

87' 30.9'

N ,

56' 5.8' E Water depth: 3790 m

Description siltv to sandv mud. dark brown

silty clay, olive brown

...

sandy rnud, olive brown, mud clasts, gradational change to upper unit

PS21 68-2 (GPC) Gakkel Ridge ARK VllU3 (ARCTIC 91)

Im Dokument with contributions of the participants (Seite 147-164)