Appendix A. Hand-specimen descriptions (LITHLOG). Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color Leg 168 Igneous Lithology Log Hole: 1023A Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1023A 1a 22X CC 6-Jan 34-41 Sparsely to moderately phyric plagioclase basalt "Hypocrystalline, sparsely-to-moderately porphyritic, vesicular" "Pillow fragments, glass rims on Pc. 1, 4 and 6" "Medium to dark gray, 7PB 2.8/0.1 to 6P 2.6/0.1" Leg 168 Igneous Lithology Log Hole: 1024B Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1024B 1a 18X CC 16-Jan 27-Oct Aphyric plagioclase-pyroxene basalt "Hypocrystalline, vesicular" "Pillow fragments, glass rims on pieces 3,7,8,11,12 & 15" "Medium to dark gray-blue, 2.2PB 1.9/0.2 to 3.9PB 1.9/0.1" Leg 168 Igneous Lithology Log Hole: 1024C Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1024C 1b 1R 1 3-Jan 0-22 Aphyric basalt "Hypocrystalline to intergranular, vesicular" Pillow fragments; glass rim on piece 1 "Gray, 4.8PB 2.9/0.2 to 4.2PB 1.6/0.1" Leg 168 Igneous Lithology Log Hole: 1025B Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1025B 1a 11X 5 3-Jan 40-50 Aphyric olivine-pyroxene-plagioclase basalt "Hypocrystalline, microlitic, vesicular" "Pillow fragment (many glass chips in the mud, trace amount in the outer surface)" Medium to dark gray 7.3PB 1.4/0.2 to 7.8 PB 2.2/0.1 1025B 1a 11X CC 11-Oct 0-5 Aphyric olivine-pyroxene-plagioclase basalt "Hypocrystalline, microlitic, vesicular" Pillow fragments (interior) Medium to dark gray 4.9 PB 1.8/0.2 to 6.9 PB 2.5/0.1 1025B 1a 11X CC 2-Jan 23-40 Aphyric olivine-pyroxene-plagioclase basalt "Holocrystalline, microlitic, intergranular(?), vesicular" Pillow fragments (interior) "Medium to dark gray, 5.4PB 1.5/0.2 to 9.7PB 1.4/0.1" 1025B 1a 11X CC 9-Mar 23-40 Aphyric olivine-pyroxene-plagioclase basalt "Hypocrystalline, intersertal, vesicular" Pillow fragments; glass rims on pieces 3 & 4 "Medium to dark gray, 5.4PB 1.5/0.2 to 9.7PB 1.4/0.1" Leg 168 Igneous Lithology Log Hole: 1025C Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1025C 1b 1R 1 4-Jan 0-28 Aphyric basalt Aphanitic; intersertal to intergranular; vesicular Massive basalt Medium gray; 2.7PB 1.9/0.3 to 3.1PB 1.9/0.2 1025C 1c 1R 1 17-May 28-139 Aphyric basalt Aphanitic; intersertal to intergranular; vesicular Massive basalt Light gray; 4.3PB 2.5/0.2 to 5.8PB 2.2/0.1 1025C 1c 1R 2 20-Jan 0-145 Aphyric basalt Microcrystalline; highly vesicular Massive basalt Light gray; 6.0G 2.0/0.2 to 2.2PB 2.0/0.1 1025C 1c 1R 3 12-Jan 0-78 Aphyric basalt Microcrystalline; vesicular Massive basalt Light gray; 8.5G 2.5/0.1 to 7.5BG 2.5/0.1 1025C 1d 2R 1 1; 5-9 0-9; 26-55 Aphyric basalt Aphanitic; vesicular Massive basalt Dark gray; 5.2PB 3.4/0.1 to 3.7PB 1.6/0.2 1025C 1e 2R 1 17-Oct 55-148 Aphyric basalt Aphanitic; microcrystalline; intergranular; vesicular Massive basalt Light gray; 0.5BG 2.3/0.1 to 6.0PB 3.0/0.1 1025C 1e 2R 2 12-Jan 0-149 Aphyric basalt Aphanitic; microcrystalline; vesicular Massive basalt Light gray; 4.2Y 2.1/0.7 to 9.4Y 1.7/0.1 1025C 1e 2R 3 15-Jan 0-150 Aphyric basalt Aphanitic; microcrystalline Massive basalt Light gray; 8.0B 2.2/0.1 to 6.6BG 1.7/0.1 1025C 1e 2R 4 8-Jan 0-37 Aphyric basalt Aphanitic; microcrystalline; intergranular; vesicular Massive basalt Light gray; 9.8G 2.8/0.1 to 9.8BG 2.4/0.1 1025C 1f 2R 4 15-Sep 37-72 Aphyric basalt Aphanitic; vesicular Massive basalt Medium gray; 1.8PB 3.0/0.1 to 1.6PB 2.8/0.1 1025C 1f 3R 1 7-Jan 0-34 Aphyric basalt Aphanitic; microcrystalline; intergranular; vesicular Massive basalt 1.2PB 4.2/0.3 to 4.9G 4.3/0.1 1025C 1g 3R 1 11-Aug 34-66 Aphyric basalt Aphanitic; vesicular Massive basalt 7.9G 4.3/0.2 to 0.4G 4.2/0.2 1025C 1g 3R 2 6-Jan 0-42 Aphyric basalt Aphanitic; microcrystalline; intergranular Massive basalt 1.5G 4.1/0.2 to 9.3GY 4.3/0.2 1025C 1g 4R 1 2; 4 8-14; 18-27 Aphyric basalt Aphanitic; vesicular Massive basalt 1.3PB 4.1/0.3 to 2.5PB 4.3/0.2 1025C 1g 4R 1 1; 3; 5-16 0-8; 14-18; 27-150 Aphyric basalt Aphanitic; intergranular Massive basalt 2.6G 4.4/0.2 to 9.1G 4.1/0.2 1025C 1g 4R 2 10-Jan 0-135 Aphyric basalt Aphanitic; microcrystalline; intergranular Massive basalt 0.1G 4.0/0.2 to 7.9GY 4.1/0.2 1025C 1g 4R 3 7-Jan 0-91 Aphyric basalt Aphanitic; microcrystalline; intergranular Massive basalt 1.0GY 1.7/0.2 to 2.0GY 1.6/0.2 1025C 1h 4R 3 8 91-104 Aphyric basalt Aphanitic; cryptocrystalline Massive basalt 3.4Y 2.0/0.1 to 6.6Y 1.4/0.1 1025C 1h 5R 1 3-Jan 0-19 Aphyric basalt Aphanitic; cryptocrystalline to microcrystalline Massive basalt 6.7Y 2.4/0.1 to 3.0PB 1.5/0.1 1025C 1i 5R 1 15-Apr 19-146 Aphyric basalt Aphanitic; microcrystalline Massive basalt 4.1Y 2.3/0.1 to 9.1Y 2.6/0.1 1025C 1i 5R 2 11-Jan 0-144 Aphyric basalt Aphanitic; microcrystalline Massive basalt 1.4GY 1.9/0.1 to 5.2B 1.8/0.1 to 9.5B 1.6/0.1 1025C 1i 5R 3 8-Jan 0-91 Aphyric basalt Aphanitic; microcrystalline Massive basalt 4.7BG 1.8/0.1 to 7.4GY 1.5/0.1 to 6.9GY 1.6/0.2 Leg 168 Igneous Lithology Log Hole: 1026B Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1026B 1 1R 1 8-Jan 0-40 Aphyric basalt Cryptocrystalline; vesicular Fragmented basalt with glass margins (possibly pillows) 5.5PB 2.1/0.2 1026B 1 2R 1 1-3; 6-7 0-10; 20-29 Aphyric basalt Cryptocrystalline; vesicular Fragmented basalt with glass margins (possibly pillows) 5.5PB 2.1/0.2 1026B 2 3R 1 12-Jan 0-79 Basalt-hyaloclastite breccia Cryptocrystalline basalt fragments; matrix supported angular breccia Angular basalt fragments within a consolidated basalt + glass shards + clay matrix Basalt fragments: 2.2PB 2.2/0.1 to 9.9B 1.3/0.2; matrix: 5.2B 1.6/0.1 to 5.7G 2.1/0.4 1026B 3a 4R 1 1-3;7 0-15; 33-46 Aphyric basalt Cryptocrystalline Pillow fragments 6.9B 1.6/0.2 to 3.8G 2.0/0.2 1026B 3a 4R 1 6-Apr 15-33 Aphyric basalt Microcrystalline; vesicular Pillow fragments 3.7G 2.2/0.2 1026B 3b 5R 1 n/a 0-43 Aphyric basalt Aphanitic; vesicular Basaltic fragments in drill cuttings and mud 1.0GY 2.6/0.1 to 2.6GY 2.6/0.1 1026B 3c 5R 1 n/a 43-59 Moderately phyric plagioclase-pyroxene-olivine basalt Aphanitic; vesicular Basaltic fragments in drill cuttings and mud 1.0GY 2.6/0.1 to 2.6GY 2.6/0.1 Leg 168 Igneous Lithology Log Hole: 1026C Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1026C 1 16R 1 Aphyric basalt Microcrystalline to intersertal; sparsely vesicular "Pillow basalts, glass rims on pieces 8 and 10" "Gray, 7.3B 2.1/0.2" 1026C 1 17R 1 12-Jan 0-43 Aphyric basalt Aphanitic; vesicular Pillow basalts; glass rims on pieces 4 and 5 "Gray, 9.8GY 4.8/0.2" Leg 168 Igneous Lithology Log Hole: 1027B Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1027B 1 60X CC 5-Jan 27-39 Aphyric olivine-plagioclase ± pyroxene basalt Pilotaxitic; intersertal; vesicular Subangular fragments medium gray 1027B 1 61X CC n/a Sep-51 Aphyric olivine-plagioclase ± pyroxene basalt Intersertal; vesicular Subangular fragments 4.7Y 1.6/0.1 (9-42cm); 1.2PB 2.6/0.2 to 4.6PB 5.5/0.1 (42-50cm) 1027B 1 62X CC n/a 0-10 Aphyric olivine-plagioclase ± pyroxene basalt Pilotaxitic; intersertal; vesicular Subangular fragments 9.8B 2.6/0.1 to 8.3B 2.3/0.3 1027B 2 62X CC n/a 35-41 Basaltic breccia (aphyric) "Microcrystalline, microlitic, vesicular" Massive basalt (brecciated fragments) "Strong variations from light gray, dark blue-gray to brownish gray. (Individual fragments are too small to calibrate.)" Leg 168 Igneous Lithology Log Hole: 1027C Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1027C 3 1R 1 1 0-113 Diabase "Homogeneous, holocrystalline; microcrystalline to fine-grained diabasic; vesicular" Massive basalt 9.4B 1.8/0.1; 8.8B 1.6/0.1 1027C 3 1R 2 1 0-113 Diabase "Homogeneous, holocrystalline; microcrystalline to fine-grained diabasic; vesicular" Massive basalt 9.3GY 2.2/0.1; 9.4BG 1.8/0.1 1027C 3 1R 3 1 0-141 Diabase "Homogeneous, holocrystalline; microcrystalline to fine-grained diabasic; vesicular" Massive basalt 9.7B 1.6/0/2; 9.6B 2.0/0.2 1027C 3 1R 4 1 0-110 Diabase "Homogeneous, holocrystalline; microcrystalline to fine-grained diabasic; vesicular" Massive basalt 2.2PB 1.8/0.1; 9.1B 1.8/0.1 1027C 3 1R 5 2-Jan 0-134 Diabase "Homogeneous, holocrystalline; microcrystalline to fine-grained diabasic; vesicular" Massive basalt 8.8GY 2.5/0.2 to 3.9BG 2.3/0.1 1027C 3 1R 6 1 0-50 Aphyric basalt margin of diabase "Homogeneous, holocrystalline; microcrystalline; vesicular" Massive basalt; aphyric basaltic margin of diabase 6.3B 1.8/0.2 1027C 3 1R 6 2 50-73 Aphyric basalt margin of diabase "Aphanitic, variolitic to hypocrystalline to microcrystalline; vesicular" Massive basalt; aphyric basaltic margin of diabase 6.0 BG 1.7/0.1 1027C 4a 3R 2 n/a 112-140 Moderately phyric plagioclase-olivine-pyroxene basalt "Varitextured; aphanitic, hypocrystalline to microcrystalline; vesicular." Pillow basalt with chilled margin 7.6GY 2.2/0.1 1027C 4b 4R 1 21-Feb 10-150 Moderately phyric plagioclase-olivine-pyroxene basalt "Aphanitic, cryptocrystalline to microcrystalline; vesicular" Pillow basalt with chilled margin 2.3PB 2.2/0.3 (top); 7.8Y 3.2/0.2 (with alteration haloes); 8.0G 2.1/0.2 (altered basalt); 9.6B 1.6/0.1 (base) 1027C 4b 4R 2 7-Jan 0-68 Moderately phyric plagioclase-olivine-pyroxene basalt Varitextured; hypocrystalline; microcrystalline- cryptocrystalline; vesicular Pillow basalt with chilled margins 2.2PB 1.9/0.3 to 4.4PB 2.7/0.2 1027C 4c 4R 2 13-Aug 68-146 Aphyric to sparsely phyric plagioclase-olivine basalt Aphanitic; hypocrystalline to variolitic to glassy; vesicular Pillow basalt with chilled margins 0.9GY 2.1/0.1 to 1.8PB 1.7/0.2 1027C 4c 4R 3 2-Jan 0-17 Aphyric to sparsely phyric olivine-plagioclase basalt Aphanitic. Pillow basalt with chilled margins 0.8PB 2.5/0.2 1027C 4d 4R 3 10-Mar 17-117 Aphyric to sparsely phyric plagioclase-olivine basalt Hypocrystalline to subvariolitic to glassy; vesicular Pillow basalt with chilled margins 7.8PB 3.5/0.1 (top; chilled zone) to 5.5PB 2.6/0.2 (middle) to 5.9PB 3.2/0.2 (base) 1027C 4e 5R 1 1 0-4 Moderately phyric plagioclase-olivine±pyroxene basalt Holocrystalline; microcrystalline Fractured pillow basalt with chilled margins 1027C 4e 5R 1 6-Feb Apr-60 Sparsely to moderately phyric plagioclase-olivine±pyroxene basalt Aphanitic; sparsely porphyritic to microcrystalline; glassy to variolitic; vesicular Moderately to highly fractured pillow basalt with chilled margins 9.5G 2.2/0.1 1027C 4f 5R 1 10-Jul 60-134 Sparsely to moderately phyric plagioclase-olivine-pyroxene basalt Aphanitic; sparsely porphyritic to microcrystalline; glassy to variolitic; vesicular Moderately to highly fractured pillow basalt with chilled margins 7.0B 2.1/0.3 1027C 4g 5R 2 5-Jan 0-79 Aphyric to moderately phyric plagioclase-olivine±pyroxene basalt Aphanitic; varitextured; sparsely porphyritic to microcrystalline; vesicular; chilled margins glassy to subvariolitic Moderately to highly fractured pillow basalts with chilled margins 10.0B 2.3/0.2 1027C 4h 5R 2 10-Jun 79-144 Aphyric to moderately phyric plagioclase-olivine±pyroxene basalt Aphanitic; varitextured; sparsely porphyritic to microcrystalline; vesicular; chilled margins glassy to subvariolitic Moderately to highly fractured pillow basalts with chilled margins 6.9B 2.1/0.1 1027C 4i 5R 3 5-Jan 0-74 Sparsely to moderately phyric plagioclase±olivine±pyroxene basalt Aphanitic; sparsely porphyritic; vesicular; chilled margins glassy to subvariolitic; vesicular Moderately to highly fractured pillow basalts with chilled margins 3.1BG 2.1/0.1 to 7.5B 1.9/0.1 1027C 4j 5R 3 7-Jun 74-104 Sparsely to moderately phyric plagioclase±olivine±pyroxene basalt Aphanitic; sparsely porphyritic; vesicular; chilled margins glassy to subvariolitic; vesicular Moderately to highly fractured pillow basalts with chilled margins 5.3G 2.2/0.1 to 5.9GY 2.0/0.1 1027C 4k 5R 3 9-Aug 104-125 Sparsely to moderately phyric plagioclase±olivine±pyroxene basalt Aphanitic; sparsely porphyritic; vesicular; chilled margins glassy to subvariolitic; vesicular Moderately to highly fractured pillow basalts with chilled margins 7.5GY 2.0/0.2 1027C 4l 5R 4 1 0-40 Sparsely phyric olivine-plagioclase±pyroxene basalt Aphanitic; microlitic; vesicular; chilled margin glassy Pillow basalts with chilled margins 7.8PB 2.5/0.1 (glass margin) to 4.1PB 2.5/0.1 1027C 4m 5R 4 8-Feb 40-110 Sparsely phyric olivine-plagioclase±pyroxene basalt Aphanitic; microlitic; vesicular; chilled margin glassy Pillow basalts with chilled margins 7.8PB 2.5/0.1 (glass margin) to 4.1PB 2.5/0.1 1027C 4n 5R 4 9 110-138 Sparsely phyric olivine-plagioclase±pyroxene basalt Aphanitic; microlitic; vesicular; chilled margin glassy Pillow basalts with chilled margins 7.8PB 2.5/0.1 (glass margin) to 4.1PB 2.5/0.1 1027C 4n 5R 5 13-Jan 0-145 Sparsely to moderately phyric plagioclase-olivine basalt Aphanitic; microlitic; vesicular; chilled margin glassy Pillow basalts with chilled margins 0.7PB 1.7/0.1 to 6.3PB 2.9/0.1 (3.3Y 2.0/1.0 in altered orange band) 1027C 4n 5R 6 6-Jan 0-50 Sparsely to moderately phyric plagioclase-olivine basalt Aphanitic; microlitic; vesicular Pillow basalts 0.7PB 3.0/0.1 to 9.7B 2.1/0.1 1027C 4o 5R 6 7 50-63 Sparsely to moderately phyric plagioclase-olivine basalt Aphanitic; microlitic; vesicular; chilled margin glassy Pillow basalts with chilled margins 0.7PB 3.0/0.1 to 9.7B 2.1/0.1 Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color Leg 168 Igneous Lithology Log Hole: 1028A Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1028A 1a 15X 6 4-Jan 116-144 Sparsely to moderately phyric plagioclase-olivine basalt Cryptocrystalline; subvariolitic; intersertal; glassy; vesicular Pillow basalt Medium t dark blue-gray; 3.5PB 2.2/0.1 to 5.8PB 2.3/0.1 1028A 1a 15X 7 5-Jan 0-47 Sparsely to moderately phyric plagioclase-olivine basalt Aphanitic; subvariolitic; honeycomb; sheaf-spherulitic; glassy; vesicular Pillow basalt Light to medium gray; 5.8PB 3.2/0.1 to 0.9PB 2.2/0.2 1028A 1b 15X 7 11-Jun 47-91 Sparsely to moderately phyric plagioclase-olivine ± pyroxene basalt Aphanitic; sheaf-spherulitic; intersertal; vesicular Pillow basalt Light to medium gray; 5.8PB 3.2/0.1 to 0.9PB 2.2/0.2 Leg 168 Igneous Lithology Log Hole: 1029A Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1029A 1 25X 3 17-Jan 27-128 Moderately phyric plagioclase ± olivine ± pyroxene basalt Aphanitic; intersertal; vesicular Pillow basalt Medium gray; 1.0PB 4.8/0.3 to 3.6PB 4.5/0.1 1029A 1 25X CC 7-Jan 0-50 Sparsely to moderately phyric plagioclase ± olivine ± pyroxene basalt Aphanitic; subvariolitic; intersertal; glassy; vesicular Pillow basalt Medium to light gray; 1.3PB 4.7/0.2 to 2.6PB 3.6/0.4 Leg 168 Igneous Lithology Log Hole: 1031A Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1031A 1 6X 1 10-Jan 0-50 Aphyric basalt Aphanitic; intersertal; subvariolitic; vesicular Pillow basalt Pale to medium gray; 1.3PB 2.1/0.2 to 1.9PB 2.6/0.2 Leg 168 Igneous Lithology Log Hole: 1032A Hole Unit Core Sec Pc Int (cm) Lithology Texture Structure Munsell color 1032A 1a 12R 1 7-Jan Aug-49 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 3.6PB 1.9/0.4 to 1.9PB 2.5/0.3 1032A 1b 12R 1 15-Aug 49-101 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 3.6PB 1.9/0.4 to 1.9PB 2.5/0.3 1032A 1c 12R 1 16-21 101-147 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 3.6PB 1.9/0.4 to 1.9PB 2.5/0.3 1032A 1c 12R 2 2-Jan 0-17 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 4.4PB 2.1/0.3 to 4.9PB 2.5/0.2 1032A 1d 12R 2 10-Mar 17-68 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 4.4PB 2.1/0.3 to 4.9PB 2.5/0.2 1032A 1e 12R 2 15-Nov 68-113 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 4.4PB 2.1/0.3 to 4.9PB 2.5/0.2 1032A 1f 12R 2 16-19 113-149 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 3.8PB 2.1/0.4 to 5.2PB 1.8/0.3 1032A 1g 12R 3 7-Jan 0-49 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; chilled margins Pillow basalt Pale to medium gray; 3.8PB 2.1/0.4 to 5.2PB 1.8/0.3 1032A 1h 12R 3 9-Aug 49-73 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 3.8PB 2.1/0.4 to 5.2PB 1.8/0.3 1032A 1i 12R 3 11-Oct 73-93 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 3.8PB 2.1/0.4 to 5.2PB 1.8/0.3 1032A 1j 12R 3 13-Dec 93-108 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 3.8PB 2.1/0.4 to 5.2PB 1.8/0.3 1032A 1k 13R 1 17-Feb 4-103 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 3.5PB 2.3/0.3 to 3.4PB 1.6/0.3 1032A 1l 13R 1 18-21 103-144 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 3.5PB 2.3/0.3 to 3.4PB 1.6/0.3 1032A 1m 13R 2 6-Jan 0-42 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Pale to medium gray; 4.6PB 3.0/0.3 to 9.6PB 2.2/0.2 1032A 2a 13R 2 18-Jun 42-150 Aphyric basalt Aphanitic microcystalline; intersertal; intergranular Massive basalt Gray; 8.8PB 2.5/0.1 to4.2PB 2.0/0.3 1032A 2a 13R 3 8-Jan 0-53 Aphyric basalt Aphanitic microcystalline; intersertal; intergranular Massive basalt Gray; 8.0B 2.4/0.2 to 2.5PB 1.5/0.3 1032A 2b 13R 3 21-Sep 53-150 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Gray; 5.2PB 2.5/0.3 to 2.2PB 2.1/0.3 1032A 2b 13R 4 9-Jan 0-64 Aphyric basalt Aphanitic; intersertal; intergranular Pillow basalt Medium to light gray; 8.4B4.3/0.1 to 2.2G 4.6/0.2 1032A 2c 13R 4 16-Oct 64-124 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Light gray; 0.8PB 4.2/0.2 to 2.6 PB 3.9/0.3 1032A 2d 13R 4 17-19 124-150 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Light gray; 6.2B 4.6/0.2 to 4.5BG 4.6/0.1 1032A 2e 14R 1 13-Jan 0-68 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Medium to light gray; 1.1PB 1.9/0.1 to 2.6PB 1.9/0.1 to 9.6B 1.6/0.1 1032A 2f 14R 1 14-17 68-111 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Medium to light gray; 4.2PB 1.8/0.1 to 4.9PB 1.7/0.4 1032A 2g 14R 1 17-18 111-121 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Medium gray; 5.7PB 1.8/0.3 1032A 2g 14R 2 5-Jan 0-48 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Medium to light gray; 1.6PB 3.8/0.3 to 5.5B 4.0/0.2 1032A 2h 14R 2 10-Jun 48-108 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Medium to light gray; 5.8PB 3.5/0.1 to 8.3BG 3.9/0.1 1032A 2i 14R 2 16-Nov 108-146 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Medium to light gray; 3.3PB 3.6/0.4 to 4.1PB 3.6/0.4 1032A 2i 14R 3 2-Jan 0-12 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal Pillow basalt Medium gray; 5.0 PB 1.3/0.2 1032A 2j 14R 3 4-Mar 31-Dec Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Medium gray; 3.2 PB 1.5/0.3 1032A 2k 14R 3 5 31-41 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Medium gray; 3.2 PB 1.5/0.3 1032A 2l 14R 3 21-Jun 41-143 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Medium gray; 3.2 PB 1.5/0.3 1032A 2l 14R 4 2-Jan 0-14 Aphyric basalt Aphanitic; intersertal to intergranular Pillow basalt Medium gray; 6.2B 3.7/0.1 to 4.5GY 4.4/0.1 1032A 2l 15R 1 1 0-3 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal Pillow basalt Medium gray; 6.2B 3.7/0.1 to 4.5GY 4.4/0.2 1032A 2m 15R 1 8-Feb Mar-42 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Light to medium gray; 9.5GY 5.4/0.1 to 5.6B 4.5/0.1 1032A 2n 15R 1 20-Sep 42-109 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Light gray; 7.8B 4.6/0.3 1032A 2o 15R 1 21-25 109-143 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Medium gray; 2.1PB 4.3/0.2 1032A 2o 15R 2 5-Jan 0-33 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Light to medium gray; 2.7PB 1.9/0.2 to 6.2 PB 2.0/0.2 1032A 2p 15R 2 19-Jun 33-131 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margins Pillow basalt Light to medium gray; 2.7PB 1.9/0.2 to 6.2 PB 2.0/0.2 1032A 2q 15R 2 20 131-144 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal Pillow basalt Light to medium gray; 2.7PB 1.9/0.2 to 6.2 PB 2.0/0.3 1032A 2q 16R 1 1 0-10 Aphyric basalt Aphanitic; intersertal Pillow basalt Medium gray; 2.5G 4.2/0.1 1032A 2r 16R 1 8-Feb Oct-61 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Medium gray; 7.3GY 4.5/0.1 to 1.1G 4.4/0.1 1032A 2s 16R 1 19-Sep 61-113 Aphyric basalt Aphanitic; variolitic; subvariolitic; intersertal; glassy margin Pillow basalt Medium gray; 2.1PB 4.3/0.2 to 3.4PB 4.4/0.3