Leg : 22 Top/Bottom Interval(mm): 280/1240 Analyst: Hekinian, R.
Hole: 211 Sample Midpoint (m) : 410.24
Core: 12 Top of Core Depth (m) : 409.00
Sect: 1 Top of Section Depth(m): 409.28
LITHOLOGY: ANDESITE;
ANDESITIC INTRUSIVE;
Piece No. : PCE NO PCE NUMBERS ASSIGNED;
Texture : PHANERITIC, HOLOXTLLINE;
Structure : ISOLATED VEINS OF MAYBE CALCITE OCCUR, PYRITIC VEINS
WERE ALSO SPORADICALLY SEEN, THIN VEINTLETS AT 25CM;
Comments : LIGHT GREENISH GRAY (5GY2/1), 4 PCES,
NATURAL BREAKS AT 50CM AND 75CM, ARTIFICIAL
BREAK AT 120CM;
Groundmass : PLAGIOCLASE
CLINOPYROXENE
Replacement: PYRITE
BIOTITE
AMPHIBOLE
THE MAJOR MINERAL CONSTITUENTS ARE SODIC PLAG,
CPX, BIOTITE, AND MINOR GREEN AMPHIBOLE;
Leg : 22 Top/Bottom Interval(mm): 0/1190 Analyst: Thompson, R.W.
Hole: 211 Sample Midpoint (m) : 411.69
Core: 12 Top of Core Depth (m) : 409.00
Sect: 2 Top of Section Depth(m): 410.50
LITHOLOGY: ANDESITE;
AS ABOVE, IGNEOUS INTRUSIVE;
Piece No. : PCE NO PCE NUMBERS WERE ASSIGNED;
Structure : % TWO THIN LAYERS AT BOTTOM;
Alteration : WEATHERED ZONE(?) AT 90-119CM;
Comments : 5Y5/2 LIGHT OLIVE GRAY;
Leg : 22 Top/Bottom Interval(mm): 1190/1500 Analyst: Thompson, R.W.
Hole: 211 Sample Midpoint (m) : 412.00
Core: 12 Top of Core Depth (m) : 409.00
Sect: 2 Top of Section Depth(m): 411.69
LITHOLOGY: SEDIMENT;
Leg : 22 Top/Bottom Interval(mm): 0/ 650 Analyst: Hekinian, R.
Hole: 211 Sample Midpoint (m) : 428.65
Core: 14 Top of Core Depth (m) : 428.00
Sect: 1 Top of Section Depth(m): 428.00
LITHOLOGY: SEDIMENT;
Leg : 22 Top/Bottom Interval(mm): 650/1500 Analyst: Hekinian, R.
Hole: 211 Sample Midpoint (m) : 429.50
Core: 14 Top of Core Depth (m) : 428.00
Sect: 1 Top of Section Depth(m): 428.65
LITHOLOGY: BASALT;
Piece No. : PCE 1 (65-150);
Texture : PROBABLE CHILLED MARGIN AT 92-93CM, TEXTURE VARIES
BETWEEN APHANITIC TO PHANERITIC, PHANERITIC AT
120CM;
Structure : VEINS AND VEINLETS OBSERVED THROUGHOUT, CALCITE
VEIN (3-4MM THICK) AT 145-148CM, BASALTIC FLOWS;
Alteration : THE BASALT APPEARS TO BE ENTIRELY WEATHERED;
Comments : THE FLOW WAS FRAGMENTED DURING THE DRILLING
OPERATION;
Vesicles :
Location: Filling: CALCITE
AMYGDULES OF CALCITE OBSERVED THROUGHOUT;
Replacement: CALCITE
Leg : 22 Top/Bottom Interval(mm): 0/1500 Analyst: Hekinian, R.
Hole: 211 Sample Midpoint (m) : 431.00
Core: 14 Top of Core Depth (m) : 428.00
Sect: 2 Top of Section Depth(m): 429.50
LITHOLOGY: BASALT;
Piece No. : PCE 1 (0-90), 2+3 (90-150);
Texture : PCE 1 IS PHANERITIC (MEDIUM-GRAINED), PALAGONITIZED
GLASS CALCITIC MATERIAL? AT 90CM, INTERVAL 90-100CM
IS AN APHANITIC AND A TRANSITION ZONE (MORE
GLASSY GNDMASS THAN OVERLYING UNIT), AT 102CM
PALAGONITIZED GLASS PATCH, INTERVAL 100-120CM
APHANITIC ZONE (VERY FINE-GRAINED), PALAGONITIZED
GLASS AT 122CM INTERVAL 125-150CM APHANITIC ZONE
(FINE-GRAINED);
Structure : CROSS CUT WITH VEINS ABOUT 1-3MM THICK OF CALCITE;
Alteration : WEATHERED;
Vesicles : AMYGDALOIDAL ZONE AT INTERVAL 60-90CM;
Replacement: CALCITE
PALAGONITE
Leg : 22 Top/Bottom Interval(mm): 0/ 400 Analyst: Hekinian, R.
Hole: 211 Sample Midpoint (m) : 431.40
Core: 14 Top of Core Depth (m) : 428.00
Sect: CC Top of Section Depth(m): 431.10
LITHOLOGY: BASALT;
Piece No. : PCE 3 (0-40);
Texture : APHANITIC, MORE GLASSY GNDMASS AT BOTTOM;
Structure : BASALTIC FLOW, VEINS OF CALCITE;
Alteration : WEATHERED;
Comments : A FRAGMENT OF LIMESTONE-LIKE MATERIAL WITH LARGE
INCLUSION (PARTIAL) OF PALAGONITIZED GLASS OCCURS AT
THE BOTTOM OF THE CORE CATCHER;
Replacement: CALCITE
PALAGONITE
Leg : 22 Top/Bottom Interval(mm): 0/1050 Analyst: Hekinian, R.
Hole: 211 Sample Midpoint (m) : 438.55
Core: 15 Top of Core Depth (m) : 437.50
Sect: 1 Top of Section Depth(m): 437.50
LITHOLOGY: BASALT;
Piece No. : PCE 4+5 (0-105);
Texture : APHANITIC GLASSY MATRIX AT TOP PARTIALLY
PALAGONITIZED, INTERVAL 29-55CM PHANERITIC (HAS
GLASSY PORTION), INTERVAL 55-67CM PALAGONITIZED
CRUST INTERMIXED WITH CALCITE-THIS MAY BE ANOTHER
CHILLED CONTACT OF A FLOW, INTERVAL 80-83CM
PALAGONITIZED CRUST+CALCITE+GLASS(FRESH) GRADING
TOWARDS AN APHANITIC ZONE;
Structure : BASALTIC FLOW;
Alteration : WEATHERED, INTERVAL 70-80CM SMALL SCALE POLYGONAL
OUTLINE OF WEATHERED MATERIAL OCCURS, MAY BE
PALAGONITE;
Vesicles : Size(mm): 3 Percent:
SPORADIC LARGE AMYGDULES;
Replacement: PALAGONITE
CALCITE
Leg : 22 Top/Bottom Interval(mm): 0/1500 Analyst: Hekinian, R.
Hole: 211 Sample Midpoint (m) : 440.50
Core: 15 Top of Core Depth (m) : 437.50
Sect: 2 Top of Section Depth(m): 439.00
LITHOLOGY: BASALT;
Piece No. : PCE 5 (0-29), 6 (29-82), 7 (82-105), 8 (105-150);
Texture : APHANITIC ZONE AT TOP GRADING TOWARDS A CHILLED
MARGIN OF GLASS AND CALCITE, INTERVAL 29-40CM
PALAGONITIZED CRUST PROBABLY REPRESENTS A CHILLED
CONTACT OF A FLOW, INTERVAL 50-62CM APHANITIC ZONE,
INTERVAL 62-82CM IS A PALAGONITIZED TRANSITION ZONE
FINER GRAINED THAN ABOVE, POLYGONAL OUTLINE OF
INCIPIENT CRYSTALLIZATION OCCURS, INTERVAL 82-105CM
APHANITIC ZONE GRADING TOWARDS A PALAGONITIZED (AND
WEATHERED) ZONE, AT 110CM APHANITIC GRADING TOWARD A
COARSER ZONE;
Structure : BASALT FLOW, AT 137CM THICK(5MM) VEIN OF CALCITE,
PATCHES AND VEINS OF CALCITE ARE INTERMIXED WITH
PALAGONITIZED MATERIAL;
Alteration : WEATHERED BASALT;
Replacement: CALCITE
PALAGONITE
IN INTERVAL 40-50CM PALAG WITH POLYGONAL OUTLINE
ZONE;
Leg : 22 Top/Bottom Interval(mm): 0/1500 Analyst: Hekinian, R.
Hole: 211 Sample Midpoint (m) : 442.00
Core: 15 Top of Core Depth (m) : 437.50
Sect: 3 Top of Section Depth(m): 440.50
LITHOLOGY: BASALT;
Piece No. : PCE 8 (25-40), 9 (40-140), 10 (140-150);
Texture : APHANITIC ZONE AT TOP, INTERVAL 40-60CM TRANSITION
AND APHANITIC GLASS RICH AND PALAGONITIZED ZONE
GRADING TOWARD A COARSER ZONE, INTERVAL 60-70CM
IS PHANERITIC AND A LESS GLASSY ZONE, APHANITIC ZONE
WITH PALAGONITE AT 144CM;
Structure : CALCITE VEINS LOCATED AT 70CM, 78CM, AND 140CM;
Alteration : WEATHERED BASALT;
Vesicles : SLIGHTLY VESICULAR;
Size(mm): <3 Percent:
LARGE AMYGDULES IN INTERVAL 95-110CM;
Replacement: CALCITE
PALAGONITE
Leg : 22 Top/Bottom Interval(mm): 0/1500 Analyst: Hekinian, R.
Hole: 211 Sample Midpoint (m) : 443.50
Core: 15 Top of Core Depth (m) : 437.50
Sect: 4 Top of Section Depth(m): 442.00
LITHOLOGY: BASALT;
Piece No. : PCE 10 (0-5), 11 (5-111), 12 (112-150);
Texture : PCE 10 IS APHANITIC, PCE 11 IS PHANERITIC, AT TOP
OF PCE 12 APHANITIC GRADING TOWARDS A COARSER ZONE,
AT BOTTOM OF PCE 12 PHANERITIC ZONE;
Structure : BASALT FLOW, CALCITE VEIN AT 30CM, VEINS OF CALCITE
(2-4MM THICK) LOCATED BETWEEN 130 TO 144CM;
Alteration : HIGHLY WEATHERED (SPECIFIED ZONES AT 5-20CM AND
30CM AND 48-50CM AND BELOW 120CM);
Comments : BOTTOM OF HOLE AT END OF SECTION;
Vesicles : LARGE AMYGDULES IN PCE 11;
Replacement: CALCITE
PATCHES OF CALCITE IN PCE 11;
PALAGONITE
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