
TY  - JOUR
A1  - Coleman, P.J. 
A1  - McGowran, B. 
A1  - Ramsay, W.R.H. 
T1  - New, early tertiary, ages for basal pelagites, Northeast Santa Isabel, Solomon Islands (Central southwest flank, Ontong Java Plateau)
JF  - Exploration Geophysics
JO  - Explor. Geophys.
Y1  - 1978
VL  - 9
IS  - 3
SP  - 110
EP  - 114
KW  - 
UR  - https://doi.org/10.1071/EG978110 
N2  - Basal pelagites deposited within the sequence of basal basic pillowed lavas are found in river sections on northeastern Santa lsabel. These deep-water carbonates are tough and lightly metamorphosed, and have to be studied in thin-section. Thin section determination of the planktic foraminifera indicate the presence of pelagites ranging in age from Late Paleocene through to Early Oligocene; younger tuffaceous sediments lie above. The lavas, pelagites and other sediments can be correlated with Malaitan sequences to the east and south-east and support the notion that northeastern lsabel is also a part of the central south-west flank of the Ontong Java Plateau. The ages of the pelagites are especially significant to the basal ages obtained in DSDP Sites 288 and 289: it appears that the plateau was created by spreading and that it is more youthful from north to south, that is, it youngs to the south. 
ER  -

