INTRODUCTION TO CROSS SECTION NUMBER FIVE (TRIASSIC BASINS"OF EASTERN NORTH AMERICA)
WEST EAST
DESCRIPTION   OF    ROCK UNITS
UNIT  A  -  Quartz sandstone with  oscillation ripple marks  and  cross bedding
UNIT D
Marine limestone
UNIT  B  -  Poorly sorted
conglomerate  with pebbles of   quartz sandstone, gneiss,   and schist
UNIT E
Gneiss   and schist
UNIT  C  -  Red,   immature sandstones  and  shales; cross bedded  with   ripple marks
UNIT  F(l)   -  Basalt with olivine phenocrysts
UNIT  F(Z)   - Vesicular (cellular! basalt