Geologic structure of the northern New Caledonia ridge, as inferred from magnetic and gravity anomalies
Tectonics
By: J.-Y. Collot, P. Rigolot, and F. Missegue
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Abstract
Bathymetric, gravity, and magnetic data collected in the southwest Pacific Ocean over the northern New Caledonia ridge show that the main geological units known from the island of New Caledonia extend northward from this island, beneath the Grand Lagon Nord, the Grand Passage, and the d'Entrecasteaux reefs. These data support the model of tectonic evolution of the New Caledonia region proposed by Kroenke (1984). Differences in structure, geophysical signatures and morphology evident between areas north and those south of the Grand Passage, together with the nearness of the Le Noroit massif west of the Grand Passage, suggest that contemporaneously with Eocene to early Oligocene subduction along the western New Caledonia margin, an arc-ridge collision may have occurred near the northern termination of this subduction zone. -from Authors
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Geologic structure of the northern New Caledonia ridge, as inferred from magnetic and gravity anomalies |
| Series title | Tectonics |
| Volume | 7 |
| Issue | 5 |
| Year Published | 1988 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Tectonics |
| First page | 991 |
| Last page | 1013 |
| Google Analytic Metrics | Metrics page |