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Table T15. Inclination-only averages for lithologic units, Hole U1372A.

Strat.
unit 		Lith.
unit 		ISCI Lithology Lith. unit depth (mbsf) Averages from 2 cm archive-half core data Averages from Fisher piece averages
n Inclination (°) α63 α95 n Inclination (°) α63 α95
Arithmetic
mean 		Maximum
likelihood 		Arithmetic
mean 		Maximum
likelihood
Top Bottom
I — NA Sandy foraminiferal ooze 0.00 13.50                    
IIA — NA Multicolor basalt breccia 13.50 18.00 40 1.1 1.6 46.5 15.3 5 8.2 8.4 16.1 15.5
IIB — NA Foraminiferal limestone 18.00 18.34                    
IIC — NA Multicolor basalt breccia 18.34 26.26 70 7.5 9.0 42.0 10.0 10 1.1 1.6 39.0 25.8
IID — NA Multicolor basalt conglomerate 26.26 39.53 172**         6 29.6 38.2 43.6 41.2
IIE — NA Bluish-gray basalt conglomerate 39.53 45.57 55**         4**        
III 1 3 Lava flow with peperitic top 45.57 46.75 47 –66.5 –67.5 9.7 2.5 1 –67.3      
III 2 3 Lava flow with scoriaceous top 46.75 48.07 42 –65.8 –66.8 9.6 2.6 2 –57.9 –57.9 0.2 0.7
III 3 3 Lava flow with peperitic top 48.07 49.07 17 –57.8 –58.0 4.3 1.9          
III 4 3 Lava flow with peperitic top 49.07 52.94 79 –65.1 –66.2 10.6 2.1 6 –64.0 –64.3 5.7 4.8
III 5 3 Lava flow with peperitic top 52.94 54.02 16 –68.2 –68.6 6.1 2.8 2 –67.9 –68.2 4.8 15.0
IV 6 3 Lava flow with peperitic top 54.02 63.73 130(141)† –64.3 –69.5 19.0 3.0 23 –58.9 –90.0 35.9 14.7
V 7 3 Lava flow 63.73 65.21 7 –66.7 –67.1 6.6 4.9 4 –70.2 –71.4 9.4 10.7
V 8 3 Lava flow with scoriaceous top 65.21 67.47 34 –44.6 –49.1 27.8 8.9 6 –41.1 –45.2 27.8 24.2
V 9 3 Lava flow with scoriaceous top 67.47 69.67 42(46)† –49.8 –56.0 28.4 8.2 3**        
V 10N* 3 Lava flow with scoriaceous top 69.67 72.81 24 –63.4 –65.0 12.5 4.6 4 –62.6 –63.4 9.2 10.6
V 10R* 3 Lava flow with scoriaceous top 69.67 72.81 34 61.3 61.9 8.9 2.7 2 63.3 63.5 5.2 16.1
VI 11 3 Lava flow with scoriaceous top 72.81 78.93 25 –37.0 –49.8 43.0 17.6 5 –52.1 –53.9 16.6 16.0
VI 12 3 Lava flow with scoriaceous top 78.93 79.96 10 –47.3 –48.3 13.9 8.4 2 –36.7 –38.2 20.4 67.7
VI 13 3 Lava flow 80.50 83.08 45 –59.1 –61.8 17.5 4.7 3 –64.8 –66.5 12.6 19.5
VI 14 3 Lava flow 83.08 84.53 4 –46.7 –46.7 1.0 1.1 1 –46.8      
VI 15 3 Lava flow 84.53 85.97 19 –50.8 –51.3 9.0 3.7 3 –46.3 –46.6 8.4 12.9
VI 16 3 Scoriaceous top to Unit 18 90.10 92.43 2 –49.7 –49.7 3.9 12.0 1 –49.7      
VI 17 0 Lava flow 92.43 92.62                    
VI 18 3 Scoriaceous top to Unit 20 92.62 92.74                    
VI 19 0 Lava flow 92.74 93.18 8 –61.5 –61.8 6.2 4.2 1 –61.7      
VI 20 3 Lava flow? 93.18 96.13 3 –59.1 –59.4 6.3 9.6 1 –59.2      
VII 21 1 Breccia 96.13 100.96 17 –35.5 –62.3 53.7 29.9 4 –29.6 –41.5 47.2 63.2
VII 22 0 Lava flow 100.96 101.32 1 –74.4       1 –74.4      
VII 23 3 Breccia 101.32 102.68 30 –60.2 –60.4 5.1 1.7 3 –59.6 –59.7 3.3 5.0
VIII 24 0 Lava flow 102.68 102.81 5 –64.5 –65.6 10.3 9.8          
VIII 25 3 Lava flow (?pillow fragments) 102.81 119.46 85(89)†‡ –83.1       10**        
IX 26 1 Hyaloclastite breccia 119.46 120.26                    
IX 27 NA Lava flow (?pillow fragments) 120.26 121.49 2 –65.3 –65.9 7.9 24.6 2 –65.3 –65.9 7.9 24.6
X 28 2 Hyaloclastite breccia 121.49 128.92 36**         9**        
XI 29 NA Lava flow (?pillow fragments) 128.92 129.06 3 –61.9 –71.6 26.2 42.0 1 –62.3      
XI 30 1 Hyaloclastite breccia 129.06 129.61 18 55.1 55.2 5.1 2.2 1 55.3      
XI 31 NA Lava flow (?pillow fragments) 129.61 129.75                    
XI 32 0 Lava flow (?pillow fragments) 129.75 129.84                    
XI 33 0 Lava flow (?pillow fragments) 129.84 129.90                    
XI 34 0 Hyaloclastite breccia 129.90 129.99                    
XI 35 NA Lava flow (?pillow fragments) 129.99 130.03                    
XI 36 0 Hyaloclastite breccia 130.03 130.10                    
XI 37 NA Lava flow (?pillow fragments) 130.10 130.11                    
XI 38 0 Hyaloclastite breccia 130.11 130.17                    
XI 39 NA Lava flow (?pillow fragments) 130.17 130.26                    
XI 40 1 Lava flow (?pillow fragments) 130.26 130.95 5 0.6 0.6 1.2 1.2 1 0.6      
XI 41 0 Lava flow (?pillow fragments) 130.95 130.99                    
XI 42 1 Lava flow (?pillow fragments) 130.99 131.32 5 30.6 30.6 3.1 2.9 1 30.6      
XI 43 0 Lava flow (?pillow fragments) 131.32 131.47                    
XI 44 NA Hyaloclastite breccia 131.47 131.59                    
XI 45 0 Lava flow (?pillow fragments) 131.59 131.80                    
XII 46 NA Hyaloclastite breccia 131.80 138.26 13 0.0 0.0 0.3 0.2 1 –0.3      
XII 47 NA Vitric-lithic volcanic sand and gravel 138.26 141.54 18 –63.7 –64.8 10.6 4.6 4**        
XIII 48 NA Hyaloclastite breccia 141.54 142.25 2 –7.4 –7.4 0.6 2.0          
XIII 49 0 Lava flow (?pillow fragments) 143.00 143.26                    
XIII 50 NA Hyaloclastite breccia 143.26 143.33                    
XIII 51 1 Lava flow (?pillow fragments) 143.33 145.54 6 –54.2 –55.2 12.2 10.2 3 –51.0 –51.8 11.8 18.2
XIII 52 NA Hyaloclastite breccia 145.54 145.67                    
XIV 53 1 Lava flow (?pillow fragments) 145.67 146.56                    
XIV 54 NA Hyaloclastite breccia 146.56 146.76                    
XIV 55 2 Lava flow (?pillow fragments) 146.76 148.10 2 –43.8 –44.0 6.9 21.6 1 –43.8      
XIV 56 NA Hyaloclastite breccia 148.10 148.50                    
XIV 57 1 Lava flow (?pillow fragments) 148.50 149.28                    
XIV 58 0 Lava flow (?pillow fragments) 149.28 149.34                    
XIV 59 NA Hyaloclastite breccia 149.34 150.09 1 –85.0       1 –85.0      
XIV 60 1 Lava flow (?pillow fragments) 150.09 151.78 7 –64.7 –65.0 6.0 4.5 2 –61.4 –61.8 6.5 20.3
XIV 61 NA Hyaloclastite breccia 156.20 171.32 8**         2**        
XIV 62 2 Lava flow (?pillow fragments) 171.32 172.71 16 –49.7 –51.8 18.0 8.4 4 –42.2 –45.6 25.5 30.3
XIV 63 NA Hyaloclastite breccia 172.71 173.23 5 –56.5 –56.6 3.2 3.0 2 –55.7 –55.7 2.1 6.3
XIV 64 NA Vitric-lithic volcanic sand 173.23 173.39                    
XV 65 NA Hyaloclastite breccia 173.39 180.81 26 –7.2 –7.4 30.1 11.2 5 5.4 6.2 32.3 32.7
XV 66 1 Lava flow (?pillow fragments) 180.81 181.22 8 –0.2 –0.2 2.0 1.4 2 –0.5 –0.5 1.6 4.8
XV 67 NA Hyaloclastite breccia 180.20 180.46                    
XV 68 0 Lava flow (?pillow fragments) 180.46 180.64 1 –30.7       1 –30.7      
XV 69 NA Hyaloclastite breccia 180.64 193.06 83 5.7 1.4 34.3 7.1 22 –0.4 –0.3 32.8 13.5
XV 70 NA Vitric-lithic volcanic sand and gravel 194.60 194.89                    
XVI 71 2 Lava flow (?pillow fragments) 194.89 196.28 8**         4**        
XVI 72 NA Hyaloclastite breccia 196.28 196.65                    
XVI 73 0 Lava flow (?pillow fragments) 196.65 204.53 1 –64.1       1 –64.1      
XVI 74 NA Hyaloclastite breccia 204.53 214.88 5**         3 –35.4 –59.3 58.6 135.8
XVI 75 1 Lava flow (?pillow fragments) 214.88 215.16 2 –64.2 –64.3 3.0 9.2 1 –64.4      
XVI 76 NA Hyaloclastite breccia 215.16 215.30                    
XVI 77 1 Lava flow (?pillow fragments) 215.30 215.68                    
XVI 78 NA Hyaloclastite breccia 215.68 216.07                    
XVI 79 1 Lava flow (?pillow fragments) 218.60 218.99 1 –51.9       1 –51.9      
XVI 80 NA Hyaloclastite breccia 218.99 228.35                    
XVII 81 3 Lava flow 228.35 232.60 33 –67.7 –68.8 9.9 3.1 8 –68.1 –70.0 12.3 8.5

* = no solution for initial distribution; results split into normal (N) and reversed (R) polarity groups. † = no solution possible with initial distribution (initial n in parentheses); results are reported for dominant polarity. ‡ = inclination consistently steep but did not converge. ** = no solution possible. — = no lithologic unit. ISCI = in situ confidence index (see “Igneous petrology and volcanology” in the “Methods” chapter [Expedition 330 Scientists, 2012]). NA = not applicable. The method of Arason and Levi (2010) was used to calculate inclination-only mean and associated statistics. α63 = circular standard deviation, α95 = 95% confidence angle.

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