CEDROS FORMATION
Outcrops of the Cedros formation within the Erin basin are few in number and have a
wide scatter. They occur as outliers representing erosional remnants of Pleistocene terraces.
The formation is comprised largely of poorly consolidated yellow, red and brown sands and grey blocky mudstones.
The sands are poorly sorted, varying from fine to coarse grained. Interbedded with the sands are lenses of hard,
"iron-cemented" sandstone and conglomerate, the latter containing pebbles of white quartz, chert and
porcellanite.
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THE GEOLOGICAL SOCIETY
OF TRINIDAD & TOBAGO
P.O. Box 3524, La Romain, Republic of Trinidad and Tobago, W.I.