Core,
section,
interval (cm) |
Lithologic
unit |
Lithology |
Mineral
components |
Lithic
components |
Bioclastic
components |
Matrix
and
cement |
Texture |
183-1138A- |
70R-2,
46-50 cm |
|
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 |
|
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 |
|
Sandstone |
Plagioclase-phyric
lavas |
None |
None |
Carbonate
cement |
Moderately
well-sorted sand, subangular sand, well-rounded pebbles |