Table T5. Summary of thin sections at Site 1138.

Core, section,
interval (cm)		 Lithologic
unit		 Lithology Mineral
components		 Lithic
components		 Bioclastic
components		 Matrix and
cement		 Texture
183-1138A-
70R-2, 46-50 cm
V
Bioclastic packstone Glauconite (1-2), opaque grains (1), brown translucent grains (1) None Bivalves, crinoids, echinoids, benthic foraminifers, ostracodes, bryozoans Syntaxial overgrowths on echinoderms Poorly sorted, high matrix content
71R-2, 92-95 cm
V
Glauconite-bearing sandstone Glauconite (20), Fe oolites (1), pyroxene (<1) Altered plagioclase-phyric lavas (1), brown translucent grains Ostracodes, pectinid bivalves, benthic foraminifers, echinoderms, bryozoans Brown ferruginous matrix Fine grained; most bioclasts reworked, partially rounded, and broken
73R-1, 24-28 cm
VI
Sandstone Plagioclase-phyric lavas None None Carbonate cement Moderately well-sorted sand, subangular sand, well-rounded pebbles

Note: Number in parentheses indicates abundance in vol%.