Table T5. Mineralogical assemblages in igneous sections determined by X-ray diffraction, Site 1253.
Core, section, interval (cm)
Depth (mbsf)
Anorthite
Augite
Magnetite/ulvospinel
Ilmenite
Calcite
Laumontite
Mesolite
Thomsonite
Scolecite
Stilbite
Phillipsite
Saponite/smectite
Celadonite
Corrensite
Chamosite
Material
205-1253A-
















5R-2, 43-52 402.28 X X








X ? ? ? Separated vein
5R-3, 88-98 404.12 X X












Separated vein
5R-4, 14-26 404.75 X X








X ? ? ? Separated vein
6R-3, 33-42 406.56 X X








X ? ? ? Separated vein
14R-1, 28-35 460.48 X ?

?




? X
? ? Separated vein
16R-1, 114-117 472.04 X X ?










? Groundmass + vein
17R-2, 105-109 478.15 X X ?

? X ? X ?


? ? Groundmass + vein
17R-2, 108-113 478.18 X X ?

X X ? ?



X ? Groundmass + vein
19R-1, 15-17 485.25 X X ? X
X X X X



? ? Groundmass + vein
22R-2, 55-57 494.63





X ? X
? X


Separated vein
22R-2, 60-62 494.68 X X ?


?







Groundmass
25R-1, 90-91 513.90 X X






X X X
X
Separated vein
25R-1, 91-93 513.91 X









X
?
Separated vein
25R-2, 90-100 515.15 X









X
?
Separated vein
27R-1, 94-98 520.14



X





X


Separated vein
27R-2, 39-40 520.71










X


Separated vein
35R-1, 34-43 558.24










X

X Separated vein
35R-1, 40-41 558.30 X X ?










X Groundmass
37R-1, 24-26 566.24 X X ?











Groundmass
37R-1, 114-115 567.14








X X

X X Separated void
39R-1, 130-131 578.50



X





X


Separated vein
42R-2, 88-90 592.28 X X X











Groundmass
42R-2, 94-99 592.34










X


Separated vein

Note: X = identified minerals, ? = tentative indications of minerals where some main peaks in the diffractogram are missing but are believed to occur as alteration products.