SITE 854 HOLE A CORE 1H CORED 0.0-9.9 mbs 854A … Density (g/cm3) 1.3 1.4 1.5 Graphic Lith. Structure 55? 8 10YR 3/4 10YR 4/4 10YR 4/3 ... XXX • L X X J XXX • L X X J XXX •

SITE 854 HOLE A CORE 1H CORED 0.0-9.9 mbsf 854A-1H \ 1

Reflectance

20 40

GRAPE Density(g/cm3)

1.3 1.4 1.5

GraphicLith. Structure

55?

8

10YR3/4

10YR4/4

10YR4/3

10YR5/4

10YR5/4To

10YR4/4

10YR4/3

10YR5/4

10YR6/3

10YR4/3To

10YR4/4

10YR5/4To

10YR4/4

10YR3/4

10YR4/4

Description

CLAYEY NANNOFOSSILFORAMINIFER OOZE WITHDIATOMS and SILTY CLAY WITHFORAMINIFERS, DIATOMS ANDNANNOFOSSILS

Major Lithologies:This core contains interbedded brownto dark brown (1OYR 5/4 to 4/3)CLAYEY NANNOFOSSILFORAMINIFER OOZE WITHDIATOMS and brown to dark brownSILTY CLAY WITH FORAMINIFERS,DIATOMS AND NANNOFOSSILS.The first lithology is dominant inSections 1-3, the second in Sections4-7.

Minor Lithologies:The minor lithologies present includedark brown (10YR 3/4) CLAYEYFORAMINIFER NANNOFOSSILOOZE WITH RADIOLARIANS ANDDIATOMS (near the top of the core)and light brown (10YR 6/3)FORAMINIFER CLAYEYNANNOFOSSIL OOZE.

General Description:Sections 1-3 are highly variable incolor and in foraminifer andnannofossil content. Sections 4-7 aremore uniform.

TRACE FOSSILS: The core isintensely bioturbated. Zoophycos ispresent at Section 3, 27-32 cm.Skolithos is present at Section 5,90-100 cm. Rind burrows are presentat Section 4, 60 cm and Section 7, 65cm.

BANDING CONTRAST: Moderate.

20 40 60Susceptibility

(instrument units)

SITE 854 HOLE A CORE 2H CORED 9.9-19.4 mbsf 854A-2H 11

Reflectance

(%)

20 40

«•*- . '


GraphicLith.

-r• 4 J-

VTfxVT •J• -1- -1-

- - -L. -L. .

-vU. J- J-

Structure

83

> »

>»

10YR5/4

10YR6/3

10YR5/4

10YR6/3

10YR.5/4

10YR6/3To

10YR

10YR5/4

10YR6/3

10YR5/4

10YR6/3

10YR5/4To

10YR3/4

Description

NANNOFOSSIL CLAYEYFORAMINIFER OOZE WITHRADIOLARIANS, FORAMINIFERNANNOFOSSIL OOZE WITHDIATOMS, RADIOLARIANS, ANDCLAY and CLAYEY FORAMINIFERNANNOFOSSIL OOZE WITHRADIOLARIANS

Major Lithologies:The sediments in the upper part of thiscore are yellowish brown (10YR 5/4)NANNOFOSSIL CLAYEYFORAMINIFER OOZE WITHRADIOLARIANS and CLAYEYFORAMINIFER NANNOFOSSILOOZE WITH RADIOLARIANS. Palebrown (10YR 6/3) intervals occurringthroughout the core areFORAMINIFER NANNOFOSSILOOZE WITH DIATOMS,RADIOLARIANS, AND CLAY. A smallmanganese concretion is present inSection 5, 1 cm. A 3-cm-thick stiffblack manganese oxide layer ispresent in Section 6, 102 cm.

Minor Lithology:The sediments below the manganeseoxide layer in Section 6 consist ofCLAY WITH ZEOLITES, containingaround 6% zeolites and 5%manganese oxides (few zeolites arepresent above this layer).

General Description:TRACE FOSSILS: Rind and solidburrows are present, and Zoophycos ispresent in the intervals locatedopposite.

BANDING CONTRAST: Moderate.

NOTE: Flow-in is present in Sections 3and 4.

l 20 40 60 80Susceptibility

(instrument units)

SITE 854 HOLE A CORE 3X CORED 19.4-28.7 mbsf

Met

er

-

GraphicLith.

Sec

tion

1

CC

Age

uMio

Structure

zzzz

Dis

turb

WW

WW

Sam

ple

Col

or

10YR2/2To

10YR3/3

Description

ZEOLITIC IRON-OXIDE CLAY

Major Lithology:This core is composed of dark brown tovery dark brown ZEOLITICIRON-OXIDE CLAY. The core is verydisturbed throughout.

General Description:TRACE FOSSILS: None.

BANDING CONTRAST: None.

854A-3X 1

S

10

15

SO

as

} 30

35

40

45

50

i 55.

SO—

65—

7 0 -

: 75—

BO—

85—

90—

as—

100—

IDS™"•™

n o -

us—

120—

I 1 2 5 -

ISO—.

135—:

: | 4 0 _

145—

ISO—

SITE 854 HOLE B CORE 1H CORED 0.0-8.4 mbsf 854B-1H 1

Reflectance(%)

20 40

GraphicLith.

r T . . j . j•-r •1- -1-

r • -r -1- -1-

P T -1" -1-

•-r J- ->-

- T -1- -1-_T. J. JT-Tj. x"-TJ. J. .\1 J. J.T

Structure

fw

w

w

w

10YR4/3

10YR3/3

10YR4/3

10YR6/4

10YR4/3

10YRRid

10YR4/3

10YR6/4

10YR4/3

Description

CLAYEY FORAMINIFERNANNOFOSSIL OOZE

Major Lithology:The dominant lithology is CLAYEYFORAMINIFER NANNOFOSSILOOZE throughout the core, varying incolor from light yellowish brown (10YR 6/4) with about 20% foraminifersto brown (10YR 4/3) with about 40%foraminifers. Diatoms andradioiarians are present throughout inabundances of about 5%. Oxidesalso are present in abundancesbetween 5-10%.

Minor Lithology:Two prominent darker horizons inSections 1 and 4 contain aFORAMINIFER NANNOFOSSILOXIDE CLAY.

General Description:TRACE FOSSILS: Bioturbation isgenerally light to moderatethroughout, but is strong within someof the darker layers. Solid burrowsand rind burrows are most commonwith some Skolithos also present.

BANDING CONTRAST: Slight tomoderate.

20 40 60 80Susceptibility

(instrument units)

SITE 854 HOLE B CORE 2H CORED 8.4-17.9 mbsf 854B-2H 1

Reflectance GRAPE Density(g/cm3)

1.3 1.4 1.5

I II I

GraphicLith.

J. J. J.J . J . .

X. J. JL

Structure

>»

518'38

,5' 8,3

555555555

>?555

,55 > »"j >»

10YR4/3

10YR6/4

10YR3/3

10YR4/3

10YR6/4

10YR4/3

Description

DIATOM FORAMINIFER CLAY WITHOXIDE, CLAYEY NANNOFOSSILOOZE WITH RADIOLARIANS andCLAYEY FORAMINIFERNANNOFOSSIL OOZE WITH OXIDESAND RADIOLARIANS

Major Lithologies:The dominant lithology in Section 2 isdark brown DIATOM FORAMINIFERCLAY WITH OXIDES. In Sections 3through 6 the dominant lithology islight brownish yellow CLAYEYNANNOFOSSIL OOZE WITHRADIOLARIANS. From the middle ofSection 6 through the core catcher,and interbedded in Sections 3 through6 is dark brown CLAYEYFORAMINIFER NANNOFOSSILOOZE WITH OXIDES ANDRADIOLARIANS.

Minor Lithologies:The top of Section 1 is dark brown tolight yellowish brown FORAMINIFERCLAYEY NANNOFOSSIL OOZE, andthe lower part of Section 1 is darkbrown DIATOM CLAY WITH OXIDES.

General Description:TRACE FOSSILS: Bioturbation isgenerally light to moderate with moreintense burrowing within the darkerbeds in which Zoophycos is oftenseen. Solid burrows and Planolites areabundant with occasional verticalburrows.


10 20 30 40 50Susceptibility

(instrument units)

Reflectance(%)

20 30 40

: f £ r^• *£ ^

~UJ• if) ^~^• [/ <^

- V <• <C C

: (J J• ^Λ %

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: 854 HOLE

GraphicLith.

• L X X JXXX

• L X X JXXX

• L X X JXXX

• L X X JXXX

XXX. X X JXXXL X X J

- L X X' L X X- L. X X- L. X X•• x x j- L. X X•• x x J- L. X X

• x x J" L X X• x x j- x x J

- L. X X• x x J•• x x J

•• x x J

•• x x J- x x J

- x x J

• x x J- L X X- L X X• x x J

• • x x J

J

J . . . . . C

JJ . . . . . .

J - - - - - .J

J —

ion

ect

CO

1

—

1

—

3

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4

5

6

7

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B CORE

Structure

1%

$$

1 >}>

555

$

$

5*5?

?5?J$?1$5̂?$85$?$5?$5?

Js?

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s

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5

3H

pie

CO

S

S

S

1

M

10YR4/3To

10YR4/4

10YR3/2

10YR4/4

10YR2/2

CORED 17.9-27.4 mbsf

Description

CLAYEY NANNOFOSSIL OOZE WITHOXIDES, CLAYEY NANNOFOSSILOOZE WITH ZEOLITES and OXIDENANNOFOSSIL CLAY WITHZEOLITES

Major Lithologies:The dominant lithology of Section 1 isdark brown to dark yellowish brownCLAYEY NANNOFOSSIL OOZE WITHOXIDES. The dominant lithology inSections 2 through Section 4, 103 cmis an intensely bioturbated darkyellowish brown to dark grayish brownCLAYEY NANNOFOSSIL OOZE WITHZEOLITES. Sediments slowly gradeinto very dark brown OXIDENANNOFOSSIL CLAY WITHZEOLITES below Section 4,130 cm.Oxides comprise up to 11 % of thesediment composition. Only slightbioturbation is visible in this lithology.

General Description:TRACE FOSSILS: Sections 1 through4 contain abundant solid and rindburrows, Skolithos, and Planolites.Zoophycos are also present. The lackof color contrast in the OXIDE CLAYmakes bioturbation difficult to discern.

BANDING CONTRAST: Strong colorcontrast occurs between the majorlithologies.

854B-3H 1

I 60 80 100Susceptibility

(instrument units)

2 3 4 5 6 7

Reflectance(%)

30 50

"1 IJ !;t i:\ s

"ii /"•i( \

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:| j

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': 'jT^f?• •* ^ r• \ ^<L

- ;'•> ^ 3— λ^ > J ^ x

- ^ ^^.: "5, >T\

GRAPE Density

(g/cm 3 )

1.3 1.4

••My•l••••••min••m•!

if

Ji

if

«̂b •

2J

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SITE

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-

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854 HOLE

GraphicLith.

//

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L"

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JI~JZ~,JL JL

L J . .JL JLL JL .JL J .L JL .•J. J .

L JL .JL J .

L JL .

L JL .

L. JL .

L JL ,

L J . .JL JL

L J . .

L JL .JL J_

L JL .j_ j .

L JL .J . JL

L J- .JL JL

L J . .JL JL

L J . .JL JL

L J . .JL J_

L JL •J . J.L JL .J_ JL

L J . .JL JL

L J . .JL JL

L J- .JL J .

L J- .JL J-iJL J .

. JL .JL JL

JL JLL J . .JL JL

JL JLL J . .

J . JLL JL .L JL .JL J.

L JL .JL JL

L J . .J . JL

U JL .J_ J_

L JL ,J . J .

L JL .

L JL .

L J- .JL JL

L J . .

ion

c3Φ

CO

2

3

4

5

6

7

CC

ΦC

CJ

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B CORE

Structure

s

I

5

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>

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ii

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$$

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—i

isti

α

ΦQ.

COCΛ

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s

1

M

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10YR2/2

10YR3/2

10YR5/4To

10YR6/4

10YR4/3To

10YR6/3

10YR7/4

10YR5/?

10YR5/4To

10YR6/4

2.5Y7\2

CORED 27.4-36.9 mbsf

Description

OXIDE NANNOFOSSIL CLAY WITHZEOLITES and CLAYEYNANNOFOSSIL OOZE WITH OXIDES

Major Lithologies:The dominant lithology in Section 1 isvery dark brown OXIDENANNOFOSSIL CLAY WITHZEOLITES containing about 11%manganese oxides. Below Section 1is intensely bioturbated brown toyellowish brown CLAYEYNANNOFOSSIL OOZE WITHOXIDES. Color is variable with slightlydarker intervals containing moreMn-oxides.

General Description:TRACE FOSSILS: Bioturbation is notdiscernable in the uniformly darkOXIDE NANNOFOSSIL CLAY WITHZEOLITES but is intense throughoutthe rest of the core. Solid burrows,Planolites and Chondrites arecommon.

BANDING CONTRAST: Moderate toStrong.

854B-4H II

30 40 50 60 70 80Susceptibility

(instrument units)

SITE 854 HOLE B CORE 5H

GraphicLith.

CORED 36.9-45.4 mbsf 854B-5H 1

Structure

10YR5/8To

10YR6/4

10YR5/4

10YR2/2

10YR2/1

Description

CLAYEY NANNOFOSSIL OOZE,METALLIFEROUS CLAY and CLAYEY!METALLIFEROUS SEDIMENT

Major Lithologies:Section 1 and half of Section 2 (mostlyflow-in) is light yellowish brown toyellowish brown CLAYEYNANNOFOSSIL OOZE. Theremainder of the core is dominated byvery dark brown to blackMETALLIFEROUS CLAY and CLAYEYMETALLIFEROUS SEDIMENT (with6% silt sized quartz). The sedimentcomposition becomes gradually moreoxide rich towards the bottom.

General Description:TRACE FOSSILS: None.

BANDING CONTRAST: None.

) 60 80 100Susceptibility

(instrument units)

Reflectance(%)

30 50

; i*"•J? ? '

: '* p: £>x

• • f i

'•i/ J\) ^ ^'*' j ^ 7

• .^ ^ 5 ^

-S ^ S


1.4 1.5• ,r™^•,π™,| ....

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~^£^

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SITE

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854 HOLE

GraphicLith.

.".

"-"

_-__-__-_

.-.

-VVV

_-_

"-"

. J

JL. JJL. J_1_. J_l_. J

. J

. J

. J

. J.

. JJ.

. JJL_ JJL

J.. JJ.. JJ.

J-. J

1 T 1

• T 1

' -r -i

T 1T T

T 1T TT T

T T1 T TT T

T TT T

T TT T

T TT T

T T

T T

T1 T

T TT T

T ^T T

ion

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1

2

3

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CO

CD

co

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CL

C CORE

Structure

555555 Mn

^ • >>

^ 55555555

55

. 1H

isti

Q

pie

COCΛ

M

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10YR3/3

10YR4/3

CORED 0.0-3.6 mbsf

Description

CLAYEY NANNOFOSSILFORAMINIFER OOZE WITHDIATOMS

Major Lithology:The entire core consists of dark brownCLAYEY NANNOFOSSILFORAMINIFER OOZE WITHDIATOMS, with moderate bioturbationthroughout.

General Description:TRACE FOSSILS: Solid burrowsand Planolites are common.


854C-1H 1


(instrument units)

Reflectance(%)

30 50

: ^ a>y^

~•\ fç

- 'r S• S

• 'V- * > >: '"-\~^>

L ( ff• / / /

;̂ £ C

r̂ £ß>

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1.4 1.5

l-g•i

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854 HOLE

GraphicLith.

J L

Λ

÷V

V

j l .

V"

Λ

y ^

Λ

J

J\

J L

Λ

Λ

Λ

Λ

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J•L

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T

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r L

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J . JL. JL JJ. J-. JL JJ. J.. J- JJL JL. J. JJ. J.. J. JJ. J.

J. J

. JL a

„ j_ jj . J-. J- J.. J- J_i_ j_JL J.. J. JJ. J‰. JL JJ. J.. J. JJ. J-. JL JJ. J.. J. -1J. J.. JL JJ. J-. JL JJ. J.. J- ΛJ. J.. J- JJL J.• ^ JJL J.. J. JJ. J.. X JJ. J.. J- JJ. J.. JL JJ_ J.

j_ jJ_ JL. J- JJ. J.

J. J.. J. JJ. J.. J. JJ. J.. J- JJ_ J.. JL JJ. J-. JL JJ« J>. J- J

. J. JJL J.. J. JJL JL. J. ΛJ• J .- • * " . " 1

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1

—

2

^—

3

4

5

6

7

πr

Φ

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ΦCo(-»>

lld

ΦQ.

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ΦOotoΦ

Q.

C CORE

Structure

555555555555555̂

55?55? > »

55?55? > »55?55?55?55?55?55?55?55?

55?55?55?55?55?55?55?55?55?55?55?55?55? > »55?55?55? > »55?55?55?55?55?

2H•s

isti

Q

ΦQ.

COCO

oo

s

S

M

Q

"5ü

10YR5/4

10YR3/3

10YR5/4

10YRfi/3

10YR5/4

10YR4/4To

10YRCIA0/4

10YR4/3

10YR

10YR3/4

10YR4/4To

10YR5/4

10YR6/3To

10YR5/4

CORED 3.6-13.1 mbsf

Description

RADIOLARIAN CLAYEYNANNOFOSSIL OOZE WITHFORAMINIFERS AND DIATOMS andFORAMINIFER NANNOFOSSIL CLAYWITH DIATOMS

Major Lithologies:The sediments in this core areinterbedded light brown and brown(10YR6/3to10YR4/3)RADIOLARIAN CLAYEYNANNOFOSSIL OOZE WITHFORAMINIFERS AND DIATOMS.Foraminifer / nannofossil content andcolor is highly variable. The bottompart of Section 6 and Section 7 - CCconsists of brown (1OYR 6/3 to 10YR5/4) FORAMINIFER NANNOFOSSILCLAY WITH DIATOMS. Two smallmanganese nodules are present inCC, 8-13 cm.

Minor Lithology:Light brown (10YR 6/3) sedimentinterbedded with the first majorlithology is composed of DIATOMFORAMINIFER NANNOFOSSILOOZE WITH RADIOLARIANS.

General Description:TRACE FOSSILS: The entire core ishighly bioturbated. Zoophycos arepresent in the intervals indicated in thestructure column. Solid burrows andPlanolites are abundant. A few rindburrows are evident.

854C-2H 1

20 40 60Susceptibility

(instrument units)

SITE 854 HOLE C CORE 3HReflectance

20 30 40 50 60™Wft

i

i i i i

GraphicLith.

—p. J. .• • • L i ±—fj. J. .— L J. J.• i -V - f • •*• •

Structure

II53

CORED 13.1 -22.6 mbsf 854C-3H 1


(instrument units)

10YR5/410YR6/3To

10YR7/3

10YR4/4

10YR6/3

10YR5/4

10YR4/3

10YR3/4

10YR3/3

10YR3/2

10YR3/3

Description

FORAMINIFER NANNOFOSSIL CLAYWITH DIATOMS, METALLIFEROUSCLAYEY NANNOFOSSIL OOZE andCLAYEY NANNOFOSSIL OOZE

Major Lithologies:Sections 1-3 contain light brown (10YR5/4 - 10YR 7/3) FORAMINIFERNANNOFOSSIL CLAY WITHDIATOMS. Below a manganese-richlayer at Section 3, 140 cm, the majorlithology is dark brown (10YR3/2-10YR 3/3) METALLIFEROUSCLAYEY NANNOFOSSIL OOZE.Both lithologies are interbedded withdarker brown (10YR 3/4 - 10YR 5/4)CLAYEY NANNOFOSSIL OOZE.

General Description:The sediment is stiffer and less heavilybioturbated beneath a thin (1-2 cm)manganese-rich layer at Section 3,140 cm.

TRACE FOSSILS: The entire core ismoderately to intensely bioturbated.Brownish gray burrows filled withsediment rich in radiolarians anddiatoms occur in Section 1 at 57-80 cmand 120-140 cm. Zoophycos ispresent at Section 4, 53 cm. Rindburrows are present at Section 2,114cm, Section 3, 13 cm, Section 4, 70-75cm and 140-143 cm, and Section 5,85-90 cm.

BANDING CONTRAST: Moderatewithin each lithology.

SITE 854 HOLE C CORE 4H CORED 22.6-32.1 mbsf 854C-4H ! 1

Reflectance(%)

10 20 30

GRAPE Density(g/cm3)1.3

I I

GraphicLith.

sa•™

Structure

10YRA/A

10YR2/2

10YR3/3

10YRoio

10YR3/4

10YR2/2

10YR3/4

10YR4/4

Description

METALLIFEROUS CLAY

Major Lithology:This core is dominated by very darkbrown to dark brownMETALLIFEROUS CLAY with slight tomoderate bioturbation. Slight colorchanges are probably related tovariations in the oxide, clay, andnannofossil content.

Minor Lithology:The top of Section 1 and the bottom ofSection 7 consist of dark yellowishbrown NANNOFOSSIL CLAY WITHOXIDES.

General Description:TRACE FOSSILS: A few solidburrows are present throughout thecore, and one rind burrow is found inSection 4, 78 cm.


(instrument units)

SITE 854 HOLE C CORE 5H CORED 32.1 -41.6 mbsfReflectance

(%)

20 40 60


1.3

I I I

1_

GraphicLith. Structure

8*8?8888855?

88888

888)$8)

10YR4/6

10YR

10YR5/4

10YR

10YR

10YR5/4

10YR5/6

10YR7/4

10YR6/4

10YRS/fi

10YR6/4

10YR4/4

10YR3/2

10YR2/2

Description

CLAYEY NANNOFOSSIL OOZE,CLAY WITH OXIDES and CLAY WITHZEOLITES AND OXIDES

Major Lithologies:This core consists of dark yellowishbrown to yellowish brown CLAYEYNANNOFOSSIL OOZE in Sections 1through 4; dark yellowish brown tovery dark grayish brown CLAY WITHOXIDES in Section 5 through 6; andblack CLAY WITH ZEOLITES ANDOXIDES in Sections 6 through thecore catcher.

General Description:TRACE FOSSILS: There are solidburrows thoughout, and rind burrowsat Section 4, 60-75 cm, and Section 6,80 cm. Chondrites is present inSection 2, 75 cm.



(instrument units)

SITE 854 HOLE C CORE 6H CORED 41.6-46.0 mbsf 854C-6H 1

Reflectance

20 40

GRAPE Density(g/cm3) Graphic

Lith. Structure

40 60 80 100Susceptibility

(instrument units)

10YR6/4

10YR4/4

10YR3/2

10YR2/2

Description

CLAY WITH ZEOLITES AND OXIDESand CLAYEY METALLIFEROUSSEDIMENT

Major Lithologies:The sediments consists of darkyellowish brown (10YR 4/4 to 10YR3/2) CLAY WITH ZEOLITES ANDOXIDES in Sections 1 through 4. Thelower part of the core is black (1 OYR2/2) CLAYEY METALLIFEROUSSEDIMENT. Small manganesenodules are present in Section 1,12-15 cm.

Minor Lithology:Section 1, 0-120 cm consists ofyellowish brown (10YR 6/4) CLAYEYNANNOFOSSIL OOZE.

General Description:TRACE FOSSILS: A few burrowspresent in Sections 1 and 2.


Documents

SITE 854 HOLE A CORE 1H CORED 0.0-9.9 mbs 854A … Density (g/cm3) 1.3 1.4 1.5 Graphic Lith. Structure 55? 8 10YR 3/4 10YR 4/4 10YR 4/3 ... XXX • L X X J XXX • L X X J XXX •