SITE 749 HOLE A CORE 1H CORED INTERVAL mbsf 749A-1H,

Transcription

1 SITE 749 HOLE A RE 1H RED INTERVAL mbsf 749A-1H, Z BIOSTRAT. ZONE/ FOSSIL CHARACTER LITHOLOGIC DESCRIPTION NANNOFOSSIL OOZE Majr lithlgy: NANNOFOSSIL OOZE, white (whiter than 10YR8/1), with intervals f darkei white and reamy white. Biturbatin is mderate; mttles ur in Setin, m; Setin 3, 51 m; Setin 4, and 30 m. Znes f disseminated ie-rafted debris ur in Setin 3. Minr lithlgies: a. Diatm ze with framinifers and sand (ie-rafted debris), very pale brwn (10YR 6/1), in Setin 1, 18 m. b. Calareus silieus ze, gray (1OYR 6/1), pssibly a lag depsit, urs in Setin 1, m. Cntains sand t pebble-sized grains; is mixed int underlying interval. SMEAR SLIDE SUMMARY (%): TEXTURE: Sand Silt Clay MPOSITION: 1,3 M , 9 1, 98 3, 86 D Aessry minerals Calareus fragments Diatms Feldspar Framinifers Garnet Hrnblende Nannfssils Plagilase Quartz Radilariaπs Rk fragment Siliflagellates Spiules Tr

2 SITE 749 HOLE B RE 1H RED INTERVAL mbsf 749B-1H) BIOSTRAT. ZONE/. jp Pt>> ' 1 ' 1 " Jr-"***""*"! -" *-*' \ t FOSSIL CHARACTER ffl g 01 " ;, ; j g ^ S 5 t GRAPHIC u LI THOLOGIC DESCRIPTION \ : \ \ : J er z w «SU : LITHOLOGY α JA i L ' " ú I S g, I 1 1 t 3 : - '.. : 1 1 ' ""' h ~*~H - ^ ~y~ ^ Q ~T "*" NANNDFOSSII OO7F L ',; j jju.\ Ti f '^ l : r *,Λ f Λ ' "I - J _ I S Majr hthαlgy: NANNOFOSSIL OOZE, white (whiter than 10YR 8/1), with intervals f darker ^\J IjL.J J 0 5 I I r reamy white; frm Setin 1. 4 m, t base f re. Kr^l UJ L u, j ~~ I ~ ^ ' ~ I i Minr lithlgies: 5" '" ' ~ ^ ~? " ~~^, ~^ I * a. Diatm ze with framinifers and sand (ie-rafted debris), very pale brwn (10YR 8/3), in " : j. J- -L- - j I Setin 1,1 m. <.. f i,.: :;.,,. I 0 _l _l ^ - J J ( b. Calareus silieus ze, gray (10YR 6/1), urs in Setin 1, 1-4 m. Pssibly a lag 3 ö"" fit OT Q- _ Q. - L j depsit, ntains sand t pebble-sized grains inluding quartzite, granite, basalt, pumie, i.,, v " ' n,r. ' and ptassium feldspar. Burrwing urs in Setin 1, 4-1 m, mixing the ie-rafted ""* VOIP : j rj _J < q j, debris int the ze. 35 ' "^ ' ~~ QQ:?O? ; " - I Drilling disturbane: Flw-in urs frm Setin, 135 m, t the base f Setin 4. i i ' :; LÜ 5 θj^ <J ! " " ;^ $ *- J ^^^ " SMEAR SLIDE SUMMARY (%): ~ v if'""-' j # # ha 1 3. ë I w - :-i-^i-! i>-l.^- ' * TE TURE: 0 ' D 1 8 M ' 8 D 45^ H, ' ' J j- SO^l H n 'π UJ J a> C - Sand «B j ' a ^ re. - - J - - Si t ee S - P iay s t g <s, : i ^^"z r~ ^ ra~. ^ j MPOSITION: ΛΛ i t g^ç 5 J L ] _ DU i j j ; "~ CE Q- _l '55 «- ' ' ' Aessry minerals ,,'; i j ; I ], Z 3. Altered grains 3 O K I *" il,, α ' C " _J J_ ' Diatms O O~~<f '! " "1 ' i. CL «* -, Feldspar ' _ j, " 3 <^,, - Framinifers _ Λ ^ I " Nannfssils 1 80 (Ij ^! f j i~ * ~ Quartz J j j \! " - 1! ' Radilarians ± I,- J i ; ;,; l w m ; : " = = = Rk fragment 3 fj)<-i 1 S-' ^ I _l l_ i Siliflagellates 1 Tr J i " σ> - _ _ Spiules 3 10 *,,»"" ^ i>i-"-" 8O z -. ~ ^ r 4 - U L ft C I " L- ' '» : j öθ"~" ;""""' ; r? - * ": -*-, "^ ΛΛ"! Mj I,'. 10 ; ", I 05 ZI j I j«110 i - H h 115-j k! H ( 1! "1 I r '5η H U h * I 30 J J u µ 140 JH^ -"i- f-* i ' ; ^ " JRΛ. U J i ^

3 SITE 749 HOLE B RE H RED INTERVAL mbsf BIOSTRAT. ZONE/ 749B-H 1 LITH0L0GIC DESCRIPTION NANNOFOSSIL OOZE Majr lithlgy: NANNOFOSSIL OOZE, white (.5Y 8/ t.5y N8); the whiter intervals are enrihed in diatms. An ash-enrihed interval urs at the base f the disturbed part f re (Setin 1, ). Rare blak fleks f pyrite are sattered ver the surfae. Slightly biturbated in Setin 6 between 101 m. Minr lithlgies: a. Nannfssil ze with diatms, white (.5Y 8/), urs in Setin, m; Setin 4, 30 m and m; and Setin 6, m. b. Framinifer nannfssil ze, pale yellw (.5Y 7/4), urs in Setin, m; ntains a trae f ash. SMEAR SLIDE SUMMARY (%):,76,89 3, D 4, D L CC Clay MPOSITION: Diatms Framinifers Glass Nannfssils Radilarians Siliflagellates Spiules I j- I - LJ I

4 SITE 749 HOLE B RE 3H RED INTERVAL mdsf BIOSTRAT. ZONE/ FOSSIL CHARACTER 749B-3H GRAPHIC LITHOLOGY LITHOLOGIC DESCRIPTION NANNOFOSSIL OOZE Majr lithlgy: NANNOFOSSIL OOZE, white (.5Y N8), firm, slightly biturbated in sme intervals. An ash-enrihed interval wherein the re is sprinkled with blak speks urs in Setin, 570 m. Thin mllus fragments ur in Setin 1, 11 m. A pyrite-enrihed interval urs in Setin, 7 m, and is mttled with light gray (.5Y N7). Minr lithlgy: Nannfssil ze with framinifers, white (.5Y 8/), slightly darker than πannfssil ze; urs in Setin 1, 64 m, and in Setin, 7 m and 6100 m. SMEAR SLIDE SUMMARY (%):,89 6,18 6, Sand Silt Clay MPOSITION: Diatms Framinifers Glass Nannfssils Pyrite Radilarians Spiules Tr

5 SITE 749 HOLE B RE 4H RED INTERVAL mbsf BIOSTRAT. ZONE/ 749B-4H GRAPHIC LITHOLOGY LITHOLOGIC DESCRIPTION NANNOFOSSIL OOZE WITH FORAMINIFERS Majr lithlgy: NANNOFOSSIL OOZE with FORAMINIFERS, white (.5Y 8/), urs in Setins 1 thrugh 5; framinifer ntent dereases in Setin 5. A mllus fragment ur: in Setin, 43 m. Minr lithlgy: Nannfssil ze, white (.5Y N8), urs in Setin 6 thrugh the base f the re. Oze is slightly biturbated in sme intervals r faintly mttled with pale yellw (.5Y 8/4) nnalareus grains thrughut; a burrw filled with this material urs in Setin 6, 99 m. Drilling disturbane: Setin 1, 103 m, is highly disturbed by drilling: Setin 3, 70 m, is disturbed alng the sides f the re. SMEAR SLIDE SUMMARY (%):, D 6, D TEXTURE: Silt Clay MPOSITION: Framinifers Nannfssils Spiules,,j

6 SITE 749 HOLE RE 5H RED INTERVAL mbsf 749B-5H LITHOLOGIC DESCRIPTION - NANNOFOSSIL OOZE WITH FORAMINIFERS Majr lithlgy: NANNOFOSSIL OOZE with FORAMINIFERS, white (.5Y N8 t.5y 8/); darker intervals ntain mre framinifers, espeially in Setin 3. Slightly biturbated, burrws appear as faint tan mttles. Purple pyriti burrws ur in Setin 4, 1104 m, in Setin 7, and in CC. Nnalareus paque minerals ur as rare yellw speks in sattered in Setins 1 and. In Setin, 18 m, an val, hrizntal burrw (3 mm by 4 mm) has been replaed by this material. Drilling disturbane: Flw-in urs in Setins 6, 7, and CC. SMEAR SLIDE SUMMARY (%): TEXTURE: 1,71, ,51 D D D Clay MPOSITION: Framinifers Nannfssils

7 SITE 749 HOLE B RE 6 RED INTERVAL mbsf 749B-6X TIME-ROCK UNIT MIDDLE EOCENE BIOSTRAT. ZONE/ FORAMINIFERS Aarinina primitiva NP16? (nt lder than NP15) A/M NANNOFOSSILS < Barren DIATOMS Barren PHYS. PROPERTIES CHEMISTRY 1SECTION CC - GRAPHIC LITHOLOGY T DRILLING DISTURB. SED. STRUCTURES I SAMPLES j * LITHOLOGIC DESCRIPTION NANNOFOSSIL OOZE WITH FORAMINIFERS Majr lithlgy: NANNOFOSSIL OOZE with FORAMINIFERS, white (5Y 8/), firm and hmgeneus thrughut, with n regnizable bedding features. Minr lithlgy: Chert, very dark grayish brwn (.5Y 3/), urs as fragments in Setin 1, 3 m, ntaining ghst figures f framinifers. Chert fragments in CC have halk and Prellanite rusts. Drilling disturbane: Cre is supy thrughut; CC is highly disturbed. SMEAR SLIDE SUMMARY (%): TEXTURE: CC, 9 D Sand 15 Silt 81 Clay 4 MPOSITION: Framinifers 0 Nannfssils 80 SITE 749 HOLE B RE 7X RED INTERVAL mbsf UNI tr. S,^ ~ U ~ Q Q BIO STRAT. <l> INIFEF < t ina <δ t FOSSI1 < If) 0. t *~ Φ T3 ö O w ID α m < S i Q_ O O ONE/ in ATOI ü Q CD PROPI STRY IEMI z :CTII «GRAPHIC LITHOLOGY ING 01 STURI 1 - t - I 1 I i CC _. 0.5~ j α it 5TRUC1» a i s * FORAMINIFER NANNOFOSSIL OOZE LITHOLOGIC DESCRIPTION Majr lithlgy: FORAMINIFER NANNOFOSSIL OOZE, white (.5Y N8) t light gray (.5Y 7/), with purple pyriti splthes may represent that biturbatin; re is t highly disturbed t determine their true nature. Darker gray intervals, espeially in CC, are muh riher in framinifers. SMEAR SLIDE SUMMARY (%): TEXTURE: 1,19 1,5 CC, 10 D D D Sand Silt Clay MPOSITION: Calite Tr Tr Framinifers Nannfssils Radilarians 1 1 Tr Spiules B7X 5 I0 I5 0 5H ~ 4 ΛC 9 5 ~ SOH 55- : 6 65~~ 7 75-" 80~ 85» 9 I05- U0 fl5- = : Si - _

8 ~ 5 SITE UNI i-rocic ~ Lu ^ O IDDL Saam [nt 749 BIOSTRAT..MINIFEF. inina S TO C <S «-; 1 TO CD TO σ <S TO C TO (J <n IOFOSSIL z 15) z <O α. z 5 < OLARIAN α O LL. HOLE ONE/ Σ i- O IDDL 5 OMAGNE TICS B i. PROP!:RTIE >- IISTRY RE ION u ^~ _j_ \ - - 9H GRAPHIC LITHOLOGY I _L_ RED INTERVAL mbsf - i - VOID _L LING Dl!3TURI d O - j _ 0.5 ( -1 _ 1 - S STRUCT 'LES «* * * NANNOFOSSIL OOZE LITHOLOOIC DESCRIPTION Majr lithlgy: NANNOFOSSIL OOZE, white (whiter than.5y N8), biturbated thrughut Setin 1, 419 m. This interval is the nly undisturbed part f the re. Oze is mttled with light gray (5Y 7/) and purple splthes. Minr lithlgies: a. Nannfssil ze with framinifers, white (5Y 8/), urs in the disturbed interval belw b. Chert, pale live (5Y 6/3), urs as fragments in Setin 1, 35 m. Drilling disturbane: belw Setin 1 the re is supy and mpletely disturbed as a result f a shattered re liner. SMEAR SLIDE SUMMARY (%): TEXTURE: 1, 1,63 1,11 3, D M M D Sand Silt Clay MPOSITION: Calite Tr Framinifers Glass Tr - Nannfssils Radilarians Siliflagellates Tr Tr Spiules B-9H 60 - _ l L i ~r _ 1 L jz ~-L 1 ~r~ I _L L - J- 1 [ _ T _ 1 L - L_ ~r - _L L T _L L T 1 T ~-L- _L. -p _L L 1 ~r - 1 _L_ T" _L T J L T _L L I " RE 1749B-8X NO REVERY

9 SITE 749 HOLE B RE 1OX RED INTERVAL mbsf 749B-10X 1 BIOSTRAT. ZONE/ FOSSIL CHARACTER LITH0L0GIC DESCRIPTION NANNOFOSSIL OOZE Majr lithlgy: NANNOFOSSIL OOZE, white (10YR 8/1), faintly mttled in Setins and 3. Mst burrws are bsured by severe drilling disturbane. Setin 1 is faintly spekled with detrital grains (quartz, alite). Minr lithlgy: Chert breia i fragments. ; in Setin 1,15 m; live blak, pebble-sized SMEAR SLIDE SUMMARY (%): TEXTURE: Sand Silt Clay MPOSITION: Aessry minerals Altered grains Calite Framinifers Nannfssils 1,119 3,10 D D

10 SITE 749 HOLE RE 1 1X RED INTERVAL mdsf TIME-ROCK UNIT MIDDLE EOCENE Aarinina pentaamerata - Aarinina densa BIOSTRAT. ZONE/ FORAMINIFERS A/G NP15 NANNOFOSSILS Barren RADIOLARIANS Barren DIATOMS PHYS. PROPERTIES CHEMISTRY 1SECTION CC METERS _!_ "j GRAPHIC LITHOLOGY _1 J l l_ T T T _L T _L T T _L T _L ~r _L T DRILLING DISTURB. SED. STRUCTURES SAMPLES * LITHOLOGIC DESCRIPTION NANNOFOSSIL OOZE WITH FORAMINIFERS Majr lithlgy: NANNOFOSSIL OOZE with FORAMINIFERS, white (whiter than 10YR 8/1) t reamy white. Minr lithlgy: Chert, live blak, urs in Setin 1, 10 m, as a single hip, and as sand-sized fragments in CC. Drilling disturbane: Severely disturbed by drilling. SMEAR SLIDE SUMMARY (%): TEXTURE: 1,60 D Sand 10 Silt 90 Clay MPOSITION: Calareus fragments 1 Framinifers 15 Nannfssils B-11X 1 SITE 749 HOLE b RE 1 X RED INTERVAL mdsf BIOSTRAT. ZONE/ TIME-ROCK UNIT MIDDLE EOCENE FOSSIL CHARACTER FORAMINIFERS NANNOFOSSILS RADIOLARIANS DIATOMS Aarinina pentaamerata - Aarinina densa A/G NP14 (upper part) r lwermst NP15 Barren Barren 1 PHYS. PROPERTIES CHEMISTRY 1SECTION CC METERS I - L _ u- J - -j GRAPHIC LITHOLOGY DRILLING DISTURB. SED. STRUCTURES - -LJA A < D D 1.0 SAMPLES * NANNOFOSSIL OOZE LITHOLOGIC DESCRIPTION Majr lithlgy: NANNOFOSSIL OOZE, white (whiter than 10YR 8/1); faintly mttled in Setin 1. Minr lithlgy: Chert, urs as a large fragment in the tp f Setin 1; shws light, parallel layering in an live matrix. Drilling disturbane: Severely disturbed. SMEAR SLIDE SUMMARY (%): TEXTURE: 1,70 D Sand 1 Silt 95 Clay MPOSITION: Calareus fragments 1 Framinifers 5 Nannfssils 93

11 εsntaa SITE 749 HOLE B RE 13X RED INTERVAL mbsf 749B-13X_ 1 IOCK UNIT UJ TIM ü O _l O WER 1 BIOSTRAT. 1IFERS α> t> (0 C C! tw >SSILS NANf TO ^_ 0) O NP1 4 <t RIANS OLA I RADI C <L> ZONE/ 5 α> π> t 00 CD SGNETICS PALE ROPERTIES 1 PHY! ISIf CHE, IsECl1 CC METI GRAPHIC LITH0L0GY ' - 0.5"" L i i x~ I π^ - i _- L _ L _- J -_ - G DISTURB. z DRIL 1 * RUCTURES I SED SAMI=LE! # NANNOFOSSIL OOZE LITHOLOGIC DESCRIPTION Majr lithlgy: NANNOFOSSIL OOZE, unifrmly white (10Y 8/1), darker in Setin 1,1 110 m; strutureless; mderately disturbed. Smear slides shw evidene f 40% miarb frm disslutin and vergrwth effets. Minr lithlgy: Chert, urs as fragments in Setin 1, 0 m (live brwn with pale, parallel layering and halk patina) and 10 m (live). SMEAR SLIDE SUMMARY (%): TEXTURE: 1,70 D Sand Silt 95 Clay MPOSITION: Calareus fragments 3 Framinifers 7 Mirite 30 Nannfssils 60 SITE 749 HOLE RE 14X RED INTERVAL mbsf TIME-ROCK UNIT 8I0STRAT. ZONE/ FORAMINIFERS NANNOFOSSILS RADIOLARIANS DIATOMS PALEOMAGNETICS PHYS. PROPERTIES CHEMISTRY SECTION METERS GRAPHIC LITHOLOGY DRILLING DISTURB. SED. STRUCTURES SAMPLES LITHOLOGIC DESCRIPTION N revery (apart frm nannfssil sample). 55 6C er TC !05~ ifo

12 SITE 749 HOLE C RE 1R RED INTERVAL mdsf TIME-ROCK UNIT BIOSTRAT. ZONE/ FOSSIL CHARACTER FORAMINIFERS NANNOFOSSILS RAPIOLARIANS DIATOMS PALEOMAGNETICS undetermined n sample n sample PHYS. PROPERTIES CHEMISTRY SECTION METERS GRAPHIC LITHOLOGY DRILLING DISTURB. SEP. STRUCTURES SAMPLES LITHOLOGIC DESCRIPTION CHERT AND PORCELLANITE Majr lithlgy: CHERT and PORCELLANITE, gray, urs as a drilling breia in CC. SITE 749 HOLE C RE R RED INTERVAL mbsf TIME-ROCK UNIT BIOSTRAT. ZONE/ G1 FOSSIL CHARACTER LJ FORAMINIFERS NANNOFOSSILS RAPIOLARIANS PIATOMS CHEMISTRY SECTION METERS undetermined n sample n sample n sample GRAPHIC LITHOLOGY PRILLING DISTURB. SEP. STRUCTURES SAMPLES LITHOLOGIC DESCRIPTION CHERT Majr lithlgy: CHERT, urs as sand-sized fragments in CC. 749C-1R JCC S ^ 5-30 : 35 : ' : : M !4 : C-R : MO!!

13 SITE 749 HOLE C RE 3R RED INTERVAL mbsf 749C-4R^CC BIOSTRAT. ZONE/ m 749C-3R^CC^^ ~~ i l I I 1 L^HOTOGY 1 LITHOLOGIC DESCRIPTION ~JH I0 ^ * ^ S S i ö ^ J > ^ U J O t - d ü I I SJ. mm. O < < 4 X X U 1 U J C E U J < 1 * % ' """», ~ ü - Z α Q ) d Vi </i i****;,^ ; I ^, -" çç I I " " ' " I X i I CHERT AND PORCELLANITIC CHERT 1 5 ~*~.. " " i j Majr lithlgy: CHERT and PORCELLANITIC CHERT, brwn, urs as fragments in CC. ΛΛ t i it t 5ü 35- p ^ 4 : ^ _ s-! - ' ' ' ' ' ' ' ' ' ' ' ' _ SITE 749 HOLE C RE 4R RED INTERVAL mbsf 60 ; : "~ BIOSTROT. ZONE/ m. DU"" * "*' ^~ FOSSIL CHARACTER bj <rt ^_ ß W*«MW- MMM =» 3L ^ sj sj CC,. t S I «I α '"""'i, = LITHOLOGIC DESCRIPTION «.. : 7*0 "~? I I 3 I i E. I I s! s 3 7 ~ - Dö I çç] I 4 " * ' * *l X I I CHERT and PORCELLANITE * *^ ΛΛ j Ma r lithlgy: CHERT and PORCELLANITE, urs as pebble-sized fragments in CC. fto" " : ft R! ~ β ^ li i ε ε ε 9ü Jr. I0 01 Q C I: - " 10-1 = C! ,, - M0 - " I I M I li- RE 1749C-5R NO REVERY : i3 - - l35 - -,4 Z z : «-" - m- 45' I DU - i l5 -

14 SITE 74S HOLE C RE 6R RED INTERVAL mbsf 749C-6R BIOSTRΔT. ONE/ t *y Σ ~ MFERS _ IRA) _J <I < 5 I s J 'ROPERTIE >- α: Z i 5 «5 TEI Z " CC - GRAPHIC LITHOLOGY lamsi ; _) 1 i RUCTURES 5 NANNOFOSSIL OOZE LITH0L0GIC DESCRIPTION Majr lithlgy: NANNOFOSSIL OOZE, white (whiter than 10Y8/1), unifrm, urs in Setin 1, 5-53 m. Minr lithlgy: Chert, live brwn, urs as fragments in Setin 1, the 5 m, and in CC. Drilling disturbane: Cre is highly disturbed. OO CL ü! er <Λ <b * CL W//C ren Bar CC CL CL <!5

15 SITE 749 HOLE C RE 7R RED INTERVAL mdsf BIOSTRAT. ZONE/ FOSSIL CHARACTER GRAPHIC LITHOLOGY LITHOLOCIC DESCRIPTION I0 I5 NANNOFOSSIL OOZE Majr lithlgy: NANNOFOSSIL OOZE, ream white (10YR 8/), firm and hmgeneus thrughut; mderately biturbated (mttled). Bluish gray blthes are sattered thrughut, ntaining a trae f authigeni pyrite. Laminae ur n a m-sale in Setin, m; lentiular laminae n a mm-sale ur in Setin, m, 51-5 m, and m. Minr lithlgy: Chert, gray (10YR 6/1) t light gray (10YR 7/1), urs as fragments in Setin 1, 5-8 m and 113 m; fragments have Prellanite znes and ghst figures f framinifers. Drilling disturbane: highly disturbed in Setin 1, m; mderately disturbed in Setin 1, 41 m. SMEAR SLIDE SUMMARY (%): 1, D 3,79 D TEXTURE: Sand Silt Clay MPOSITION: Framinifers Nannfssils Pyrite Spiules U

16 SITE 749 HOLE C RE 8R RED INTERVAL mdsf 749C-8R 1 BIOSTRAT. ZONE/, ~JSiBl OT t FOSSIL CHARACTER m I m I I I Ü s g C D~~ H ^p lilt, ill, UTHTGV! I. L.TH0LOG.C D E SCR,PT 10 N. ß Hffl _ i = i - J S J I < / > S - > "j v EBB Hi w 3 i g S m a j. α ffi Mi < < x x t u u tr u < 1 < j S% ^ ^ ^ ^ ^ ^_ J^ ^ 3 v» ***" H ^ **~ - * * * * * CHERT _ j. WA * ' " * * A A * ^ ui * ' _ * * * * * X Majr lithlgy: CHERT, varius shades ; gray, urs as drilling breia..j N B : N 5 S B ~ SB ' ' ' ' ' ' ' ' ' ' 55*H B RE 1749C-9R NO REVERY 80 :: 85~~.~~ QQZ,. I 3JB H - S J SH * m ^ lö (6 TH 3 I z m m 40~ - ~ 'SS MJ ^ I K«l jtj l 7

17 SITE 749 HOLE C RE 10R RED INTERVAL mdsf 749C-10R TIME-ROCK UNIT BIOSTRAT. ZONE/ FOSSIL CHARACTER FORAMINIFERS NANNOFOSSILS j RADIOLARIANS DIATOMS 1 PHYS. PR0PER1 CHEMISTRY 1SECTION CC METERS : GRAPHIC LITHOLOGY i i i i i i I i i I I i i I i i i i i I i I I I i i i i I i I i i DRILLING DISR ÜJ ] SED. STRUCTUR \ / SAMPLES * LITHOLOGIC DESCRIPTION NANNOFOSSIL CHALK WITH FORAMINIFERS Majr lithlgy: NANNOFOSSIL CHALK with FORAMINIFERS, white (10YR 8/1), hmgeneus thrughut; mderately biturbated (mttled). Bluish gray blthes that ntain a trae f authigeni pyrite are sattered thrughut. Minr lithlgy: hert, gray (1OYR 5/1), urs as fragments in Setin 1, ntains ghst figures f framinifers. Drilling disturbane: supy in Setin 1, 5 m; mderately fratured in Setin 1, m; highly fratured in CC. A quartzite pebble ( m) urs in Setin 1, m, but prbably is dwnhle ntaminatin. p«=*» i i CENE Lu OWER - 1 _) Q Q i y> <n <δ O J CL arren arren CD CD SMEAR SLIDE SUMMARY (%): 1, 8 D T E X T U R E : S a n d 7 S 9 0 C a y 3 C O M P O S I T I O N : F r a m i n i f e r s N a n n s s s 8 7 S p u e s 1

18 SITE C-11R-CC UNIT 1: APHYRIC, APHANITIC, ALTERED, VESICULAR BASALTS m O Φ 0. 5 g CD CC δ NTACTS: See mments. PHENOCRYSTS: See mments. GROUNDMASS: See mments. VESICLES: See mments. LOR: See mments. STRUCTURE: See mments. ALTERATION: See mments. VEINS/FRACTURES: See mments. ADDITIONAL MMENTS: Green and red re, amygdules filled with zelites and lined with green lay, alite and zelites. 100 RE/SECTION 5

19 SITE 749 m i.s CD rr ö à => E en UNIT 1: DRILL CUTTINGS NTACTS: Nt determined. PHENOCRYSTS: Nt determined. GROUNDMASS: Nt determined. VESICLES: Nt determined. LOR: Gray-live green. STRUCTURE: Nt determined. ALTERATION: Nt determined. 1749C-1R-1 Q UNIT 1: MODERATELY CLINOPYROXENE-PLAGIOCLASE PHYRIC AUTOBRECCIATED BASALT A B C D 3A CD XRD Piees 1-11 NTACTS: Nt determined. PHENOCRYSTS: Plagilase -1%, 1 mm. Clinpyrxene - 3%, 1 - mm. GROUNDMASS: Mirrystalline. VESICLES: Piees A, 7, 9, and 10: up t 3%, mm, highly vesiular with an irregular shape t runded, infilled with sme alite and zelites. LOR: Piees 1 and : gray. Piee 3A: gradual hange frm gray t yellwish brwn. Piees 3B-3D, 4, and 5: mainly light yellwish brwn. Piee 6: tp - yellwish brwn, bttm - gray. In bth tp and bttm parts different lred prtin has a sharp ntat. Piees 7 t 9: gray. STRUCTURE: Nt determined. ALTERATION: Gray lred part mderately altered, yellwish brwn part highly altered. VEINS/FRACTURES: Nt determined. 3B 3C 3D CZ >< RE/SECTION 551

20 SITE C-1R- m Φ E 3 ee N CL raphi eprese O r " α: O rientati O U0 T3 lipba Z) lö ü thlgi _i UNIT 1: NTINUED Piees 1-1 NTACTS: Nt determined. PHENOCRYSTS: Plagilase -1%, 1 mm. Clinpyrxene - 3%, 1- mm. GROUNDMASS: Mirrystalline. VESICLES: Piees 6-1: up t 30%, mm, highly vesiular with a irregular shape t runded, infilled with sme alite and zelites. Piees -5: mm wide, very elngated, filled with blak minerals and zelites. LOR: Gray. STRUCTURE: Nt determined. ALTERATION: Gray lred part mderately altered, yellwish brwn part highly altered. VEINS/FRACTURES: (?)%, mm, lw angle dip filled with alite r high angle dip infilled with zelites. 4B 5A 5B 5C 5D 100 5E 5F Q P 1 RE/SECTION 55

21 SITE 749 m E Φ ü OS" er I 3 GO.Q Q. 'sz C/3 ü J5 UNIT 1: NTINUED Piees 1-4E (Tp) 1749C-1R-3 NTACTS: Nt determined. PHENOCRYSTS: Plagilase -1%, 1 mm. Clinpyrxene - 3%, 1- mm. GROUNDMASS: Mirrystalliπe. VESICLES: (?)%, mm wide, very elngated, vesiles fund in Piees 1-4. Vesiles are filled with blak minerals and zelites. LOR: Piees 1-4: gray. STRUCTURE: Nt determined. ALTERATION: Gray-lred part mderately altered, yellwish brwn part highly altered. VEINS/FRACTURES: Nt determined. ADDITIONAL MMENTS: This unit is autbreiated. The fragments are angular with varied sizes (few mm up t few m). The matrix is the same vlani rk as the fragments but with a darker lr. 4A UNIT : MODERATELY CLINOPYROXENE-PLAGIOCLASE PHYRIC BASALT DIKE 4B Piees 4E (Bttm)-14 (Tp) 4C 4D 4E NTACTS: Dike has a -m thik hilled margin with Unit 3. PHENOCRYSTS: Clinpyrxene - 3%, mm, subhedral t euhedral. Plagilase - 3%, mm, subhedral t euhedral laths. GROUNDMASS: Mirrystalline. VESICLES: Nne. LOR: Dark gray. STRUCTURE: Nt determined. ALTERATION: Fresh t slightly altered. VEINS/FRACTURES: 0.5- mm infilled with alite. Piees 4E and 14: disrdant ntat between the dike and vlani rks f Units 1 and 3, respetively. 5 6 UNIT 3: MODERATELY CLINOPYROXENE PHYRIC BASALT 7 1R-3, Piees 11-14, and 1R-4, Piees TS RF CM 3 NTACTS: Nt determined. PHENOCRYSTS: Clinpyrxene - 3%, 0.5 mm, subhedral GROUNDMASS: Fine-grained. VESICLES: > 1%, 0.5- mm, runded, infilled with alite. LOR: Piees 1R-4, 1,17, and 18: gray. Piees 1R-4, -16: yellwish brwn. STRUCTURE: Nt determined. ALTERATION: Slight t mderate in gray basalts, highly altered in the yellwish brwn basalts. VEINS/FRACTURES: m thik, hrizntal, steeply dipping njugated veins. Piee 1R- 4, 10: en eheln, infilled mainly with alite. Piees 1R-4, 13 and 15: hrizntal veins, zned (well visible n Piee 1R-4, 15), light green smetite, dark green lay mineral, and alite RE/SECTION 553

22 I I I => II 1749C-1R-4 z I σ g 1R-4, Piees 1-18.a $ " á ö) α> -? -Q - See Setin 1749C-1R-3 m g. Φ.9- S1 ir w 5 ^ j I 1 M M 3 GĖCI B "" 9^ U _ 11 ^ (A XRD 13 p^? 1100 rr\ ^ η XRD i " W 1 1 1^""^ I RE/SECTION

23 SITE C-1R-5 m e> er T3 O -Q Q. l en UNIT 3: NTINUED Piees 1-1 NTACTS: Nt determined. PHENOCRYSTS: Clinpyrxene - 3%, 0.5 mm, subhedral. GROUNDMASS: Fine-grained. VESICLES: > 1%, 0.5- mm, runded, infilled with alite. LOR: Gray. STRUCTURE: Nt determined. ALTERATION: Slight t mderate in gray basalts, highly altered in the yellwish brwn basalts. VEINS/FRACTURES: Piee 11: hrizntal veins filled with a dark green smetite and brwn gethite and hematite. TS { RF t XRD RE/SECTION 555

24 SITE 749 m 1D 1E s.a I er I 1749C-15R-1 UNIT 4: MODERATELY CLINOPYROXENE-PLAGIOCLASE PHYRIC BASALT Piees 1A-1T NTACTS: Nt determined. PHENOCRYSTS: Plagilase - 1%, 1- mm, euhedral laths. Clinpyrxene - 5%, mm, subhedral. GROUNDMASS: Fine-grained. VESICLES: 1%, 1- mm, Infilled with alite. LOR: Gray. STRUCTURE: Nt determined. ALTERATION: Slight, sme pyrite in fratures. VEINS/FRACTURES: mm, gently dipping, mmn in Piees 1A t 1G, infilled with alite. Sme veins have brwn-lred hal, up t 1 m wide. 1F 1G 1H 11 U 1K 1L 1M 1N P 1Q TS 1R 1S 1T RE/SECTION 556

25 SITE C-15R- m 1ß UNIT 4: NTINUED 15R-, Piees 1-, 15R-3, Piees 1-, and 15R-4, Piees 1-3 NTACTS: Nt determined. PHENOCRYSTS: Plagilase - 1%, 1- mm, euhedral laths. Clinpyrxene - 5%, 0.5-3, subhedral. GROUNDMASS: Fine-grained. VESICLES: < 1%, 0.5 mm, filled with alite. LOR: Gray. STRUCTURE: Nt determined. ALTERATION: Slight, sme pyrite in fratures. VEINS/FRACTURES: (?)%, 0.5- mm, infilled with gray smetite, less mmn. C 1 J \A K 100 R S RE/SECTION 557

26 SITE 749 m n ε z α> Q) 1A 1B g re.a S re Q- C O ati CD O tudi w "σ δ JS Q en UNIT 4: NTINUED Piees 1- See Setin 1749C-15R- 1749C-15R-3 1C 1D 1E 1F A B V C D E F G H J J K L RE/SECTION 558

27 SITE C-15R-4 m s s 8- CD CE " tf Q) -S δ.9- UNIT 4: NTINUED Piees 1-3 See Setin 1749C-15R- 1A 1B 1C 1D 1E 1F 1G 1G A 100 B C D E 3A 3B 3C 3D 3E RE/SECTION 559

28 SITE C-15R-5 m.a 8- UNIT 4: NTINUED Piees 1-10 NTACTS: Nt determined. PHENOCRYSTS: Plagilase - 1%, 1- mm, euhedral laths. Clinpyrxene - 5%, mm, subhedral. GROUNDMASS: Fine-grained. VESICLES: < 1%, 0.5 mm, filled with alite. LOR: Gray. STRUCTURE: Nt determined. ALTERATION: Slight, sme pyrite in fratures. VEINS/FRACTURES: (?)%, 0.5- mm, infilled with gray smetite. ADDITIONAL MMENTS: Beming finer grained twards ntat with Unit 5. Near ntat bundary (Piee 10 and part f Piee 11), fine-grained and aphyri. UNIT 5: APHYRIC BASALT Piees 11 and 1 NTACTS: Nt determined. PHENOCRYSTS: Rare Plagilase. GROUNDMASS: Very fine-grained. VESICLES: 1%, 1-10 mm, rund t subrund, irregularly distributed, green lay, zelites, and alite filled. LOR: Gray t gray-green. STRUCTURE: Nt determined. ALTERATION: Slight. VEINS/FRACTURES: Unmmn, thin (< 0.05 mm), filled with zelites and quartz. RF TS 8A 8B 100 8C 10A 10B 0 S 11 1 RE/SECTION 560

29 SITE C-15R-6 m CD XI E =3 A 3 11 I α rx CU E UNIT 5: NTINUED Piees 1-13 NTACTS: Nt determined. PHENOCRYSTS: Rare Plagilase. GROUNDMASS: Very fine-grained. VESICLES: 1%, 1-10 mm, rund t subrund, irregularly distributed, green lay, zelites, and alite filled. Piee 10: m hrizn f rund lay and zelite-filled vesiles. LOR: Gray t gray-green. STRUCTURE: Nt determined. ALTERATION: Slight. VEINS/FRACTURES: Unmmn, thin (< 0.05 mm), filled with zelites and quartz. Piee B has green smetite vein. Piee 11 has avity filled with green smetite and laumntite. B i XRD 3A 3B D f XRD XRF TS 13 RE/SECTION 561

30 SITE 749 m XI ee Num raphi spresentati 'ientati Φ T3 T3 lipba nit z> ~ö tilgi UNIT 5: NTINUED Piees 1-8 (Tp) 1749C-16R-1 NTACTS: Piee 8, tp 4 m: very fine-grained aphyri basalt. N vesiles, hilled margin. Cntat with Unit 6. PHENOCRYSTS: Rare Plagilase. GROUNDMASS: Very fine-grained. VESICLES: (?)%, 1-10 mm, rund t subrund, irregularly distributed, green lay, zelites, and alite filled. Amygdules inrease in abundane tward base f Unit 5. LOR: Gray t gray-green. STRUCTURE: Nt determined. ALTERATION: Slight. VEINS/FRACTURES: Unmmn, thin (< 0.05 mm), filled with zelites and quartz. UNIT 6: PLAGIOCLASE GLOMEROCRYSTS BASALT 3C 4A Piees 8 (Bttm)-9 NTACTS: Nt determined. PHENOCRYSTS: Unregnizable. GROUNDMASS: Very fine-grained and amygdaiidal with sme angular fragments. VESICLES: (?)%, 1 mm- m, quartz and green lay filled. LOR: Green t light-gray green. STRUCTURE: Nt determined. ALTERATION: Mderate. VEINS/FRACTURES: Nne t very rare. 4B 6A 100 TS 6B RE/SECTION 56

31 SITE 749 m A udie pba S 0) D- lgial LInit UNIT 6: Piees NTINUED C-16R- NTACTS: Nt determined. PHENOCRYSTS: Plagilase - 0%, 1.5- mm, glmerrysts. GROUNDMASS: Very fine-grained and amygdalidal with sme angular fragments. VESICLES: (?)%, 1 mm- m, quartz and green smetite filled. N alite. LOR: Green t light-gray green. STRUCTURE: Nt determined. ALTERATION: Fresh t slight. VEINS/FRACTURES: Nne. B 3A 3B 3C 3D Z> 3E 3F 100 TS 3G 3H 31 RE/SECTION 563

32 SITE 749 m α> n E 3 ee N 1B raphi 3prese ntati 'ientati T3 T3 lipba nit "ö ü :hlgi UNIT 6: NTINUED Piees C-16R-3 NTACTS: Nt determined. PHENOCRYSTS: Plagilase - 0%, 1.5- mm, glmerrysts. GROUNDMASS: Very fine-grained and amygdalidai with sme angular fragments. VESICLES: (?)%, 1 mm- m, quartz and green lay-filled vesiles. N alite. Piees 1F t 4: vesiles beme mre pen and are lined with dark green t blue green lay, ntinuing t Setin 4, Piee. LOR: Green t light-gray green. STRUCTURE: Nt determined. ALTERATION: Fresh. VEINS/FRACTURES: Nne. 1C 1D 1E 1F 100 B TS RE/SECTION 564

33 SITE C-16R-4 UNIT 6: NTINUED m Piees 1-3 NTACTS: Nt determined. PHENOCRYSTS: Plagilase - 0%, 1.5- mm, glmerrysts. GROUNDMASS: Very fine-grained and amygdalidal. VESICLES: Small (1- mm) vesiles are filled with green lay. Piee 3G: large (> m) vesiles filled with (a) mm - 1m lay/zelites lining, (b) lined with green lay and filled with zelite and -3 m prismati zelite rystals. LOR: Green t light-gray green. STRUCTURE: Nt determined. ALTERATION: Beming less altered dwnward (i.e., Piees 3G-3J). VEINS/FRACTURES: Nne. 3B 3C XRD 3D XRD 3F 3G 100 3H TS 31 3J 3J RE/SECTION 565

34 SITE 749 m Φ _Q E z s 1B 1C Q. en O ra Φ pre Φ tud T3 α3 S a. 1749C-16R-5 UNIT 6: PLAGIOCLASE GLOMEROCRYSTS BASALT 16R-5, Piees 1-, 16R-6, Piees 1-, and 16R-7, Piees 1-6 NTACTS: Nt determined. PHENOCRYSTS: Plagilase - 30%, 3-10 mm. Clinpyrxene - %, 1-3 mm. GROUNDMASS: Fine-grained, mirrystalliπe. VESICLES: (?)%, 1-5 mm, filled with green lay. LOR: Gray. STRUCTURE: Nt determined. ALTERATION: Fresh t slightly altered. VEINS/FRACTURES: (?)%, mm, zned, lined with green lays and prismati zelite. ADDITIONAL MMENTS: Unit 6 ntinues frm 16R-1, Piees 8 thrugh 16R-7, Piee 6, but at Piee16R-4, 3H, Unit 6 bemes relatively fresh. 1D 1E XRD 1F B 100 C TS E RE/SECTION 566

35 SITE C-16R-6 m S.a " CD CC (0 5 UNIT 6: NTINUED Piees 1- See Setin 749C-15R-5 u 1A 1B 1C 1D 1E 1F A 100 B * RF TS C D RE/SECTION 567

36 SITE 749 Φ 1749C-16R-7 m E 5 g α I E is -9 UNIT 6: NTINUED Piees 1-6 See Setin 749C-15R-5 1A 1B 1C 1D N A B 100 RF RE/SECTION 568