Species abundance: A = abundant (1-10 specimens per field of view at 1500 X=, C = common (1 specimen per 2- 10 fields), F = few (1 specimen per 11-100 fields), R = rare (1...
Positions of all cores recovered during Ocean Drilling Program (ODP) Leg 112 off Peru are shown in the standard calcareous nannoplankton zonation. Stratigraphic and regional...
Transitions interpolated within coring or sampling gaps can be identified from the associated large range of uncertainty. Boundaries of thin or otherwise poorly defined polarity intervals are indicate
Radiolarian cherts in the Tethyan realm of Jurassic age were recently interpreted as resulting from high biosiliceous productivity along upwelling zones in subequatorial...
