Abstract
This investigation has been concerned with the determination of the crustal thicknesses of the various features of the Southwest Pacific from Love‐ and Rayleighwave dispersion characteristics. The crustal thickness of the Tasman Basin between New Zealand and Australia is the same five to ten km, as that for the South Pacific Basin to the east of New Zealand. The thickness of East Cape ‐ Kermadec ‐ Tonga Ridge bordering the South Pacific Basin on the west and that of the Lord Howe Rise bordering the Tasman on the northeast is 20–25 km. A crustal refraction profile over New Zealand gives a thickness of 20 km. The interior region of ridges and troughs, northeast of New Zealand, has an average thickness of 15–20 km. The results are indicative of an origin from successive orogenic belts built out over an oceanic crust. The area is not part of an extensive continent.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
