Revised history of early Tertiary plate motion in the south-west Pacific

@article{Stock1987RevisedHO,
  title={Revised history of early Tertiary plate motion in the south-west Pacific},
  author={Joann M. Stock and Peter H. Molnar},
  journal={Nature},
  year={1987},
  volume={325},
  pages={495-499}
}
Reanalysis of early Tertiary magnetic anomalies on the Pacific plate south of the Campbell Plateau indicates that in early Tertiary time there was a previously unrecognized triple junction of the Pacific, the Antarctic, and a third plate now beneath the Bellingshausen sea. Corresponding revised parameters for Pacific–Antarctica motion do not require early Tertiary displacements within Antarctica or New Zealand, but suggest a change in direction of the Pacific plate over the hotspots of… 

New Constraints on Plate Tectonic Puzzle of the SW Pacific

A long-standing problem in the tectonics of the southwest Pacific has been the lack of closure of the plate circuit linking the Antarctic, Australia, Lord Howe Rise, and Pacific plates in late

Geophysics of the Pitman Fracture Zone and Pacific-Antarctic Plate Motions During the Cenozoic

Multibeam bathymetry and magnetometer data from the Pitman fracture zone (FZ) permit construction of a plate motion history for the South Pacific over the past 65 million years. Reconstructions show

Relative motions of hotspots in the Pacific, Atlantic and Indian Oceans since late Cretaceous time

Combinations of global plate reconstructions reveal average velocities for the last 50 to 65 million years of 10 to 20 mm yr−1 between the Hawaiian hotspot and those beneath Iceland, Tristan da

Late. Oligocene Pacific-wide tectonic event

Stratigraphic and structural changes, radiometrically and biostratigraphically dated, from basins and basement across New Zealand, indicate that the modern Australia-Pacific plate boundary, including

High‐resolution animated tectonic reconstruction of the South Pacific and West Antarctic Margin

An animated reconstruction shows South Pacific plate kinematics between 90 and 45 Ma, using the satellite‐derived gravity anomaly field, interpolated isochrons and plate rotation parameters from both

Cenozoic plate tectonic reconstructions and plate boundary processes in the Southwest Pacific

The Australia-Pacific-Antarctic plate circuit has long been a weak link in global plate reconstruction models for Cenozoic time. The time period spanning chron 20 to chron 7 (43-25 Ma) is

Geophysical Investigations of the Tectonic Boundary Between East and West Antarctica

TLDR
The results of an over-snow seismic experiment in Antarctica do not show evidence for a trough next to the TAM but indicate the extension of rifted mantle lithosphere under the TAM, which suggests thermal buoyancy as the cause for uplift.

Paleomagnetic Tests of Pacific Plate Reconstructions and Implications for Motion Between Hotspots

The plate-motion circuit through the South Pacific and Antarctica is shown to fail paleomagnetic tests of consistency. These failures imply that reconstructions of Pacific basin plates relative to

Late Neogene relative motions of the Pacific and North America Plates

In this paper a new set of finite rotations describing the relative motion of the Pacific and North America plates during the last 10 m.y., incorporating recently published studies of the
...

References

SHOWING 1-10 OF 25 REFERENCES

Magnetic Anomalies, Bathymetry and the Tectonic Evolution of the South Pacific since the Late Cretaceous

Summary Bathymetric and magnetic anomaly data indicate that the South Pacific Ocean floor between New Zealand and Antarctica formed since late Cretaceous time by sea-floor spreading at the

Paleomagnetic test of the Early Tertiary Plate circuit between the Pacific Basin Plates and the Indian Plate

The internal consistency of early Tertiary reconstructions of the Pacific, Antarctic, and Indian plates has been tested by combining seafloor spreading data and paleomagnetic data. These tests show

Cainozoic sedimentation in basins adjacent to a major continental transform boundary in southern New Zealand

The Indo-Australian/Pacific plate boundary crosses the New Zealand continental block as the Alpine fault system, an oblique continental transform. Plate tectonic calculations for the SW Pacific imply

Seafloor Spreading in the Tasman Sea

Magnetic and seismic studies in the Central Tasman Sea show conclusively that it evolved by a process of seafloor spreading between 60 and 80 m.y. BP, suggesting that other marginal basins may have a

Cretaceous and Early Tertiary paleomagnetic results from the Antarctic Peninsula

Paleomagnetic results are presented for early Tertiary and Cretaceous igneous and volcanic units from the northern Antarctic Peninsula. When combined with previously published data, they permit the

Cllsworth Mountains: Position in West Antarctica ue to Sea-Floor Spreading

TLDR
A native explanation is now suggested which involves sea-floor spreading atnd anslocationi of the Ellsworth crutstal block from its originilal location adjacent to the East Antarctic Shield.