Leg : 29 Top/Bottom Interval(mm): 70/ 300 Analyst: Margolis, S.
Hole: 278 Sample Midpoint (m) : 427.30
Core: 34 Top of Core Depth (m) : 424.00
Sect: 3 Top of Section Depth(m): 427.07
LITHOLOGY: SEDIMENT (SILICEOUS NANNO CHALK);
Leg : 29 Top/Bottom Interval(mm): 600/1160 Analyst: Margolis, S.
Hole: 278 Sample Midpoint (m) : 428.16
Core: 34 Top of Core Depth (m) : 424.00
Sect: 3 Top of Section Depth(m): 427.60
LITHOLOGY: SEDIMENT (SILICEOUS NANNO CHALK);
Leg : 29 Top/Bottom Interval(mm): 1160/1500 Analyst: Margolis, S.
Hole: 278 Sample Midpoint (m) : 428.50
Core: 34 Top of Core Depth (m) : 424.00
Sect: 3 Top of Section Depth(m): 428.16
LITHOLOGY: PLAG PHYRIC BASALT;
Texture : PORPHYRITIC, CHILLED MARGINS;
Structure : VEINS;
Alteration : NO OBVIOUS ALTERATION OF CHALK;
Comments : CONTACT AT 115 CM, SEE CORE FORM AND LITHOLOGIC
DESCRIPTION IN THE INITIAL REPORTS FOR ADDITIONAL
INFORMATION;
Vesicles : VESICULAR AND HAS AMYGDULES;
Leg : 29 Top/Bottom Interval(mm): 0/ 0 Analyst: Margolis, S.
Hole: 278 Sample Midpoint (m) : 428.60
Core: 34 Top of Core Depth (m) : 424.00
Sect: CC Top of Section Depth(m): 428.60
LITHOLOGY: PLAG PHYRIC BASALT;
Leg : 29 Top/Bottom Interval(mm): 0/1500 Analyst: Ovenshine, A.T.
Hole: 278 Sample Midpoint (m) : 430.50
Core: 35 Top of Core Depth (m) : 429.00
Sect: 1 Top of Section Depth(m): 429.00
LITHOLOGY: PLAG PHYRIC BASALT;
Texture : PORPHYRITIC, PALAGONITE RINDS, MICRITE SELVAGES;
Alteration : FRESH
Comments : BASALT IS OLIVE BLACK (5 Y 2/1), GLASS IS BLACK,
PALAGONITE RINDS ARE DARK YELLOWISH ORANGE
(10 YR 6/6), MICRITE SELVAGES ARE LIGHT GREY
(10 YR 7/2), CORE IS IN ABOUT 20 SEGMENTS WITH THE
LONGEST BEING 19 CM + THERE HAS BEEN ABRASION OF
MATERIAL LOST BETWEEN SEGMENTS, FOR ADDITIONAL
INFORMATION SEE INITIAL REPORTS;
Vesicles : Size(mm): 0.5 Percent:
Location: Filling: CALCITE
WHITE RARE CALCITE FILLED AMYGDULES AVERAGE
0.5 MM;
Groundmass : GLASS
Replacement: PALAGONITE
PALAGONITE RINDS;
CALCITE
IN AMYGDULES;
Leg : 29 Top/Bottom Interval(mm): 0/1500 Analyst: Ovenshine, A.T.
Hole: 278 Sample Midpoint (m) : 432.00
Core: 35 Top of Core Depth (m) : 429.00
Sect: 2 Top of Section Depth(m): 430.50
LITHOLOGY: PLAG PHYRIC BASALT;
Texture : PORPHYRITIC, FROM 43-72 CM A MICRITE SELVAGE UP TO
2 CM THICK WITH GLASS + PALAGONITE ON EACH SIDE,
FROM 86-93 CM CORE THROUGH PILLOW IS RIM OF GLASS
AND PALAGONITE, SOME MICRITE PRESERVED IN
INTERPILLOW AREAS;
Structure : AT 30 CM A WIDE MICRITE VEIN (3 CM);
Comments : 12 SEGMENTS COMPRISE THE CORE, FOR ADDITIONAL
INFORMATION SEE THE CORE FORM AND LITHOLOGIC
DESCRIPTION IN THE INITIAL REPORTS;
Replacement: PALAGONITE
Leg : 29 Top/Bottom Interval(mm): 0/1500 Analyst: Ovenshine, A.T.
Hole: 278 Sample Midpoint (m) : 433.50
Core: 35 Top of Core Depth (m) : 429.00
Sect: 3 Top of Section Depth(m): 432.00
LITHOLOGY: PLAG PHYRIC BASALT;
Texture : PORPHYRITIC, FROM 0-32 CM SEGMENTS ARE GREATLY
ROUNDED, GLASS RIM IN INTERVAL (67-69 CM) IS 0.8 CM
THICK, FROM 142-150 CM MICRITE SELVAGE LACKING GLASS
RIM (1 CM WIDE);
Vesicles :
Location: Filling: CALCITE, LIMONITE
BETWEEN 33-36 CM HAS A ZONE 1 CM THICK OF
IRREGULARLY SHAPED VESICLES FILLED WITH CALCITE
AND LIMONITE;
Replacement: CALCITE
LIMONITE
IN VESICLES;
Leg : 29 Top/Bottom Interval(mm): 0/ 650 Analyst: Ovenshine, A.T.
Hole: 278 Sample Midpoint (m) : 434.15
Core: 35 Top of Core Depth (m) : 429.00
Sect: CC Top of Section Depth(m): 433.60
LITHOLOGY: PLAG PHYRIC BASALT;
Texture : PORPHYRITIC;
Alteration : CEMENTATION UNKNOWN - ROCK HAS BEEN LESS WEATHERED
AND IS ALTERED IN APPEARANCE;
Comments : CORE CATCHER HAS 9 PIECES OF BASALT TOTALING 65 CM
AND INCLUDING THREE 5 CM FRAGMENTS, CEMENTATION
UNKNOWN AND ROCK HAS BEEN LESS WEATHERED + HAS
ALTERED APPEARANCE, NO GLASS ON ANY OF THESE PIECES;
Groundmass : GLASS ( 0%)
NO GLASS ON ANY OF THESE PIECES;
|
