Leg : 23 Top/Bottom Interval(mm): 1310/1500 Analyst: Manheim, F.
Hole: 223 Sample Midpoint (m) : 714.50
Core: 39 Top of Core Depth (m) : 713.00
Sect: 1 Top of Section Depth(m): 714.31
LITHOLOGY: BASALTIC VOLCANIC BRECCIA;
Piece No. : PCE NO PCE NUMBERS ASSIGNED;
Comments : CONSISTS OF ANGULAR FRAGMENTS OF FINE-GRAINED
CHILLED AMYGDALOIDAL TRACHYBASALT IN A HYALOCLASTIC
MATRIX (PALAGONITE), CALCITE AND QUARTZ VEINING
THROUGHOUT, MEDIUM LIGHT GRAY IN COLOR, THE
BINOCULAR MICROSCOPE SHOWS LATHS OF FELDSPAR WITH
FEW VESICLES, THE EXPOSED PARTS SHOW ALTERATION TO
A GREENISH OR BROWNISH GREEN MINERAL, FELDSPARS
SHOW A CRISS-CROSS ARRANGEMENT (FINE TO MEDIUM-
GRAINED, AT PLACES FRACTURED, FOR MORE INFORMATION
REFER TO LITHOLOGY SUMMARY IN THE SITE 223
CHAPTER OF THE INITIAL REPORTS;
Leg : 23 Top/Bottom Interval(mm): 10/1500 Analyst: Kidd, R.
Hole: 223 Sample Midpoint (m) : 716.00
Core: 39 Top of Core Depth (m) : 713.00
Sect: 2 Top of Section Depth(m): 714.51
LITHOLOGY: BASALTIC VOLCANIC BRECCIA;
Piece No. : PCE 1 (1-4), 2 (5-9), 3 (10-20), 4 (21-26),
5 (27-32), 6 (33-41), 7 (41-46), 8 (47-56),
9 (57-61), 10 (61-73), 11 (74-80), 12 (81-90),
13 (90-94), 14 (94-104), 15 (105-112), 16 (112-117),
17 (118-125), 18 (125-135), 19 (135-143),
20 (144-150);
Structure : LARGE ANGULAR CLASTS OF VOLCANIC ROCK SET IN A
Comments : FINE-GRAINED MATRIX WHICH IS ALSO BRECCIATED AND
HAS XTLLINE LIMESTONE AS A DOMINANT CONSTITUENT,
THE VOLCANIC CLASTS ARE MEDIUM TO FINE-GRAINED
WITH VESICLES AND VISIBLE LATHS OF FELDSPARS WITH
INTERGROWN TEXTURE, CLASTS ARE LARGE-UP TO 6CM IN
LENGTH AND HAVE ALTERED MARGINS, THE MATRIX IS OF
SMALLER ANGULAR VOLCANIC CLASTS SET IN A XTLLINE
LIMESTONE, ALTERATION MARGINS ON THE LARGE CLASTS
SHOW A STRUCTURE THUS (SKETCH ON VISUAL CORE
DESCRIPTION DATA SHEET), WHERE VOIDS OCCUR ALONG
THESE MARGINS A COOLING OF CRYSTALS OCCURS WHICH
ARE COLORLESS, STURDY, AND DO NOT EFFERVESCE-
POSSIBLY ZEOLITE, FOR MORE INFORMATION REFER
TO LITHOLOGY SUMMARY IN THE SITE 223 CHAPTER OF
THE INITIAL REPORTS;
Leg : 23 Top/Bottom Interval(mm): 0/1500 Analyst: Kidd, R.
Hole: 223 Sample Midpoint (m) : 717.50
Core: 39 Top of Core Depth (m) : 713.00
Sect: 3 Top of Section Depth(m): 716.00
LITHOLOGY: BASALTIC VOLCANIC BRECCIA;
Piece No. : PCE 1 (0-5), 2 (5-12), 3 (12-15), 4 (16-17),
5 (18-22), 6 (22-27), 7 (25-30), 8 (30-36),
9 (36-42), 10A (43-49), 10B (50-56), 11 (56-60),
12 (61-70), 13 (70-75), 14 (76-81), 15 (81-89),
16 (89-93), 17 (95-102), 18 (102-110),
19 (110-115), 20 (115-124), 21 (124-130),
22 (130-135), 23 (135-139), 24 (139-150);
Comments : BRECCIATED ROCK WITH GREEN TO GRAY ANGULAR CLASTS
BETWEEN 1 AND 5CM ALONG AXIS SET IN A A RED BROWN
MATRIX IRON STAINED WHICH IS ALSO BRECCIATED AND HAS
CALCITE VEINING THROUGH IT, THE LARGE CLASTS SHOW NO
ORIENTATION AND HAVE ALTERED MARGINS WHICH ARE OFTEN
XTLLINE, THE ROCK IS FINE TO MEDIUM GRAINED
(VOLCANIC ROCK-DOLERITE?) WITH VESICLES AND
PROMINENT FELDSPAR LATHS, THE MATRIX IS OF MM SIZE
ANGULAR FRAGMENTS AND HAS A PROMINANT VOLCANIC
GLASS CONTENT, PCES 10+10A HAVE VOIDS BETWEEN THE
CLASTS WHICH SHOW XTLLINE GROWTHS ON THEIR WALLS,
GENERALLY A MORE COMPACT ROCK THAN SECTION 2 AND
LESS LIMESTONE MATERIAL-EFFERVESCES ONLY ON CALCITE
VEINS;
FOR MORE INFORMATION REFER TO LITHOLOGY SUMMARY
IN THE SITE 223 CHAPTER OF THE INITIAL REPORTS;
Leg : 23 Top/Bottom Interval(mm): 0/ 0 Analyst:
Hole: 223 Sample Midpoint (m) : 717.60
Core: 39 Top of Core Depth (m) : 713.00
Sect: CC Top of Section Depth(m): 717.60
LITHOLOGY: BASALTIC VOLCANIC BRECCIA;
Piece No. : PCE NO PCE NUMBERS ASSIGNED;
Comments : FOR MORE INFORMATION REFER TO LITHOLOGY SUMMARY
IN THE SITE 223 CHAPTER OF THE INITIAL REPORTS;
Leg : 23 Top/Bottom Interval(mm): 0/1500 Analyst: Kidd, R.
Hole: 223 Sample Midpoint (m) : 723.50
Core: 40 Top of Core Depth (m) : 722.00
Sect: 1 Top of Section Depth(m): 722.00
LITHOLOGY: BASALTIC VOLCANIC BRECCIA;
Piece No. : PCE 1 (0-2), 2 (3-5), 3 (6-11), 4 (12-17),
5 (18-29), 6 (30-34), 7 (34-40), 7A (40-46),
8 (47-53), 9 (53-58), 10 (59-65), 11 (66-71),
12 (71-80), 13 (81-85), 14 (85-89), 15 (89-92),
16 (93-99), 17 (100-102), 18 (103-105),
19 (105-114), 20 (114-124), 21 (125-132),
22 (133-139), 23 (140-143), 24 (146-150);
Comments : LITTLE CHANGE FROM CORE 39 IN THE LARGE CLASTS BUT
THERE IS SOME VARIATION IN MATRIX CHARACTERISTICS,
DOWN TO PCE 5 CALCITE VEINING ONLY BETWEEN VOLCANIC
CLASTS, MATRIX BETWEEN CLASTS IN PCES 6-8 IS ORANGE
RED AND COMPACT (FOR EXAMPLE CUT SURFACE 7A), PCES
9-11 HAVE A GREENISH-GRAY RUBBLE OF VOLCANIC ROCK
WITH IRON STAINING BETWEEN, PCE 12 IS ALMOST ALL
VOLCANIC ROCK WITH CALCITE VEINS BUT AT BASE THE
MATRIX IS OF DARK GREEN CLAST CRYSTALS SET IN A VERY
FINE GREEN MATRIX, PCE 3 HAS A GOOD DEAL OF CALCITE-
SOME OF IT CRYSTALLINE, CRYSTALS IN VUG IN PCE 4
ARE ZEOLITE AND THE TRAPEZOHEDRAL CRYSTAL SHAPE IS
DOMINANT-SUGGESTS ANALCITE(?)-NEEDLE SHAPED CRYSTALS
PRESENT MAY ALSO BE ZEOLITES, FOR MORE INFORMATION
REFER TO LITHOLOGY SUMMARY IN THE SITE 223 CHAPTER
OF THE INITIAL REPORTS;
Leg : 23 Top/Bottom Interval(mm): 0/1500 Analyst: Kidd, R.
Hole: 223 Sample Midpoint (m) : 725.00
Core: 40 Top of Core Depth (m) : 722.00
Sect: 2 Top of Section Depth(m): 723.50
LITHOLOGY: BASALTIC VOLCANIC BRECCIA;
Piece No. : PCE 1 (0-8), 2 (8-11), 3 (12-21), 4 (21-27),
5 (27-31), 6 (31-36), 7 (37-45), 8 (45-50),
9 (51-59), 10 (59-61), 11 (61-67), 12 (67-71),
13 (72-77), 14 (77-85), 15 (86-93), 16 (93-97),
17 (99-105), 18 (105-110), 19 (110-115),
20 (115-119), 21 (120-123), 22 (126-128),
23 (129-136), 24 (137-141), 25 (141-145),
26 (146-150);
Comments : STRONGLY VEINED, BRECCIATED IGNEOUS ROCK, PCES 1+2
HAVE LARGE ANGULAR CLASTS WITH A SUBSTANTIAL CALCITE
MATRIX BETWEEN, BELOW THESE THE IGNEOUS ROCK IS MORE
VEINED THAN BRECCIATED, VUGS WITHIN THE GREYISH
GREEN IGNEOUS MATERIAL ARE LINED WITH TRAPEZOHEDRAL
XTLS NEEDLE SHAPED XTLS (ZEOLITES?) AND SURFACES
WITH RED BROWN (HEMATITE?) MATERIAL, CALCITE VEINS
HAVE VUGS ALSO WITH XTLS OF CALCITE PRESENT, IGNEOUS
ROCK IS MEDIUM TO FINE GRAINED WITH NEEDLE LATHS AND
VESICLES;
Leg : 23 Top/Bottom Interval(mm): 0/ 0 Analyst:
Hole: 223 Sample Midpoint (m) : 725.10
Core: 40 Top of Core Depth (m) : 722.00
Sect: CC Top of Section Depth(m): 725.10
LITHOLOGY: BASALTIC VOLCANIC BRECCIA;
Piece No. : PCE NO PCE NUMBERS ASSIGNED;
Texture : FINE-GRAINED;
Structure : DENSE BASALT HAS CAVITIES LINED WITH ZEOLITES;
Alteration : ALTERED TO SLIGHTLY ALTERED;
Leg : 23 Top/Bottom Interval(mm): 1200/1490 Analyst: Kidd, R.
Hole: 223 Sample Midpoint (m) : 732.49
Core: 41 Top of Core Depth (m) : 731.00
Sect: 1 Top of Section Depth(m): 732.20
LITHOLOGY: TRACHYBASALT;
Piece No. : PCE 1 (120-125), 2 (126-130), 3 (131-137),
4 (137-144), 5 (145-149);
Texture : MEDIUM TO FINE GRAINED;
Structure : FERRUGINOUS AND CALCITE VEINING;
Comments : DARK GRAY IN COLOR;
Vesicles :
Location: Filling: ZEOLITE
UNCERTAIN, VUGS WITHIN THE IGNEOUS ROCK HAVE
TRAPEZOHEDRAL CRYSTALS WHICH DO NOT EFFERVESCE
(ZEOLITE?);
Leg : 23 Top/Bottom Interval(mm): 0/1480 Analyst: Kidd, R.
Hole: 223 Sample Midpoint (m) : 733.98
Core: 41 Top of Core Depth (m) : 731.00
Sect: 2 Top of Section Depth(m): 732.50
LITHOLOGY: TRACHYBASALT;
Piece No. : PCE 1 (0-5), 2 (5-11), 3 (11-16), 4 (16-22),
5 (21-25), 6 (25-35), 7 (36-41), 8 (43-48),
9 (49-54), 10 (54-60), 11 (60-65), 12 (65-75),
13 (75-82), 14 (82-84), 15 (87-93), 16 (93-100),
17 (100-106), 18 (112-118), 19 (118-124),
20 (124-130), 21 (130-140), 22 (140-144),
23 (145-148);
Texture : MEDIUM TO FINE-GRAINED;
Structure : CALCITE VEINING, CALCITE IN NEEDLE SHAPED CRYSTALS
IN THE FRACTURE VEINS;
Vesicles : VUGS HAVE XTLLINE SURFACES;
Replacement: CALCITE
Leg : 23 Top/Bottom Interval(mm): 0/ 0 Analyst:
Hole: 223 Sample Midpoint (m) : 734.10
Core: 41 Top of Core Depth (m) : 731.00
Sect: CC Top of Section Depth(m): 734.10
LITHOLOGY: TRACHYBASALT;
Piece No. : PCE NO PCE NUMBERS ASSIGNED;
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