Zealandia is a lost continent beneath the waves of the South Pacific Ocean. It was discovered using satellite mapping. Geologists found rocks in the region that were continental-type rocks, not oceanic rocks. That led them to suspect a drowned continent. Zealandia contains rich plant and animal ...
Two geochemically and temporally distinct components of the Mesozoic Zealandia Cordilleran arc indicate a shift from low to high Sr/Y whole rock ratios at c. 130Ma. Recent mapping and a reappraisal of published Sr-Nd data combined with newzircon Hf isotope analyses supports a genetic relationship...
Zealandia, Earth’s eighth continent, was mostly lost to the sea. Geologists say they’ve now mapped the entirety of the underwater land mass.
This unit is stratigraphically below the main basin onlap surface and seismic mapping revealed that it rapidly thins away from the mouth of a present day submarine canyon imaged on the western slope of the basin, and that is diverted by exposures of Unit 2 deformed strata. Deformed and syn...
A geophysical mapping and dredging campaign on the RV Southern Surveyor (ss2012_v06) confirmed the prolongation of the Lord Howe Seamount Chain to the South Rennell Trough, similar to 200 km further north than previously sampled. Radiometric dating of these new samples at 27-28 Ma, together ...