SITE 78 HOLE A CORE 1H CORED INTERVAL 2660.82670.3 mbsl; 0.09. mbsf TIMIEROCK UNIT ~Z. O CO Q_,2> i CL Q_ Z> BIOSTRAT. ZONE/ i CM CM Z < IOFOSSILS MNVN ~ IT) OLARIANS RAOI I DIATOMS LL 2 z I PHYS;. PROPERTIES rσ> " ID ΘCL. c IISTRY 13H0 >θ O 1 SECT ION 2 3 4 METE I ~ L _L_~ L :? β K^H^ JI II Si β i 2 C " % ",,»««Λ "^"~=ft" t _ GRAPHIC LITH0L0GY l 1 1 _ 1 _ 1 1 1 1 _l i i \\ ^ ^ " t"««^»// v ^// ^»" a % ««= ' v ir"ft 'ft " ^= " ll "'II.~ "^ ft ^ a // ^ // «?"=ft" i ^ ^ ft~^ > < JI /( 1 DRILI.ING DISTURB. ' ' < ' > 0. ' ' 1 ' 1 1 000 STRUCTURES I SED. If E E J SAMP NANNOFOSSIL OOZE and PUMICE LITH0L0GIC DESCRIPTION Majr lithlgy: PUMICE and NANNOFOSSIL OOZE, light brwnish gray (2.YR 6/2). light gray (7.YR 7/0) and gray (7.YR 6/0). with mttling that was prduced by burrwing. The pumice fills Sectin 3 thrugh Sectin CC; it is a prly srted mixture f subangular t subrunded pieces, 1 mm t 6 cm is size, with an increasing size dwπcre. This size variatin prbably represents cring disturbance. A graded silty glassrich nannfssil ze is present frm 48 82 cm in Sectin 1.Grayish live green (GY 3/2) laminae f IE NANNOFOSSIL OOZE are present near the base f Sectin 1 SMEAR SLIDE SUMMARY (%): 28 TEXTURE: 1, 29 1. 60 1. 82 1. 130 2. D D D M D Sand Silt 10 10 3 2 20 Clay 90 90 6 7 7 COMPOSITION: Clay 8 10 20 1 Diatms 3 Epidte 2 Feldspar 2 Framinifers 8 8 2 20 3 3 vlicrite 2 10 3 Nannfssils 72 79 1 4 60 Opaques 2 1 Quartz 2 8 3 2 Radilarians 2 2 3 Serpentine 2 Spicules 1 2 78A1HI 1 i>co "» % ft ^ "» ' " ".i ^s ft J HJI 6 _ =?«"" // //»,«1 Λ B "SW \ N ft «0 λ "_«2j"_=ft" S 1 1 i cσ O J h 7 CC Jen < 1^ «XRF
< ;:::! SITE 78 HOLE A CORE 2H CORED INTERVAL 2670.32679.8 mbsl; 9.1 9.0 mbsf 78A 2H! 1 2 3 4. mmmmm fobxwhffi> M M Z FOSSIL CHARACTER m S jg w p" j ^1 ë i± S I, ffur^v 2 LITHOLOGIC DESCRIPTION α z 3 w ^ Q i z MULUÜT O er w if) """": M^^^^KW Wffi3a ' ' 'BBH iksf '""""sp " ^á? "' "B ~ vwi t"\\7x, T~ PUMICE and VITRIC ASH ' ' ; V' \^B «?' SSI 4 B '' d "" " MMI" " 'KiSfSfis wi'' ^^n^w!^ss ja>ap^^^ 3 :^ I ='^ '^ Majr lithlgy: PUMICE, light gray (7.YR 7/0) and gray (2.YR 6/ 2 ' 0.~ " a«v " ' 0), subangular t subrunded fragments up t 3 cm in length and «r BHI ^^^^^B I ^ I" V\ mixed with black (10YR 2/0) carse sandt granulesize VITRIC jjj, WM K ü " # ' ti+" II "= xv» ASH All sectins are a prly srted mixture f these tw lithlgies ~ t'n /«and prbably cnsist f drill cuttings with little stratigraphi signifi 2 A ^ 3 'i^"»//».j^^/?hjfc ffii M W FT 1 M ^ «"^""»H r. ' "" =/i t lliiilll s^ i Φ?"_«"«0~~~9% IS~~flS^ '^S~~^l ~~ II T^~... ". //~^n \j sj Bffig :.?«n» "ii «Λ S." iü$bl&fe v akss "H^^B 8 I βft»«β _ f, "^ j /i H zz II " && % "^9 ~ i = ' "W Wmsmm ( s3 w ^// ;/ = xx " I 0 A ^Φf ^ ^...,,. ; ^ J I ' ' 1, 1 1, j 1 W"W / ' '' "^ ',: "^ '.«
SITE 78 HOLE A CORE X CORED INTERVAL 2699.12708.6 mbsl; 38.347.8 mbsf 78AXICel BIOSTRΛT. ZONE/. ~ ll FOSSIL CHARACTER 2 g 0) J t «1 LITHOLOGY a i LITHOLOGIC DESCRIPTION A l u 2 CC ~^ ~~ ~ T S N A N N 0 F 0 S S I L 0 0 Z E A N D VITRIC ASH, : ^ Majr lithlgy: NANNOFOSSIL OOZE, light gray (N 71), badly TJL' disturbed by drilling; may nt be in place stratigraphically. Sectin!±! CC cntains a 4 cmthick layer f granulesized VITRIC ASH and 2"" r W ^ ^ pumice between 12 and 19 cm.. I 1 3 CC a> ;J 40 = ~~ «_ ' ΛC; t JU, ~~~ ' ~~ 6O3 'ß c SITE 78 HOLE A CORE 6X CORED INTERVAL 2708.62718.1 mbsl; 47.87.3 mbsf _ BIOSTRAT. ZONE/. "70 FOSSILCHARACTER M S g «IV 3? 1 1 1 1 01 α ""' ^ 3«PS S= ~jnr ë t S 1 I '"""'i, = LITHOLOGIC DESCRIPTION ' Q 2 O < OT ^ t L ^ 2 THOLOGT O tt (^»««Ú i i 2 2 i «i s i B W S 80 3 i r z ^! 3 > S u > d s U V i E z S ó 2 t 2 α m S J OO rd One cm f cre recvered in the cre catcher; all material given t O v/ ^ 2 palentlgists. LÜ 0.^ 90 LÜ CM ^ 1 n c g gβ 9!_ 1.0? i 10 I 1 ^ ^ n : 12 1 u~~ "~ z j40 14; 10
SITE 78 HOLE A CORE 7X CORED INTERVAL 2718.12727.6 mbsl; 7.366.8 mbsf 7β A ~ 7X LαH BIOSTRAT. ZONE/ FOSSIL CHARACTER iu g <n t~ Z.. g JZ = α i l l! f I «z JTHTOGY I I M LITHOLOGIC DESCRIPTiON O~ U C m c(, ^] ^L Z O NANNOFOSSIL OOZE and VtTRIC ASH F" < Majr lithlgy: NANNOFOSSIL OOZE, light gray (N 7/). badly _ ^ disturbed by drilling; may nt be in place stratigraphically. Sectin ~~I ^ 2 CC cntains a 2 cmthick layer f granulesized VITRIC ASH and 2 HfeS" 2 O pumice at 79 cm. β^ O z "J V ~~ 11 1 1 11 1 1 1 I 6CK 40 I 4 0 78 A 8X NO RECOVERY 6 Z ~ 78 A 9X NO RECOVERY 70 i 0 78 A10X NO RECOVERY 8 0 78A11X NO RECOVERY 8 90 I \J\J I0 IL <J I ~~ I αu~ ~~ SH J~ ~~~ 14"" 10
SITE 78 1278A2H0 (131134 cm) ROCK NAME: Pumice GRAIN SIZE: TEXTURE: y vesicular OBSERVER: JOH WHERE SAMPLED: IzuBnin frearc PRIMARY PRESENT SIZE ORIGINAL (mm) COMPO SITION MORPHOLOGY PHENOCRYSTS Spinel <O.Ol Equant. GROUNDMASS < 100 N/A N/A, nw brwn and devitrified. SECONDARY Clays Chlrite >9 REPLACING/ FILLING Brwn, amrphus, pervasive. Slight yellwgreen plechrism. VESICLES/ CAVITIES Vesicles 2 LOCATION SIZE (mm) <2 Stretched. : Pumice fragment, stretched glass altered t clay. Pink tinge t sectin may result frm thin sectin preparatin r a Mn cmpnent in the clay. N piece number given. 1278AXCC (228 cm) ROCK NAME: Pumice GRAIN SIZE: TEXTURE: y vesicular OBSERVER: JOH WHERE SAMPLED: IzuBnin frearc PRIMARY SIZE PRESENT ORIGINAL (mm) COMPO SITION MORPHOLOGY PHENOCRYSTS Spinel <O.Ol Equant. GROUNDMASS <IO 100 N/A N/A Brwn, devitrified. Small prtins f fresh, clrless glass. SECONDARY Clays REPLACING/ FILLING >90 Brwn, amrphus, pervasive. VESICLES/ SIZE CAVITIES LOCATION (mm) Vesicles 202 <2 Elngate, irregular, stretched. : Pink tint t sectin may result frm clay r preparatin f thin sectin. N piece number given. 817