Coastal Geomorphology of the Beqa and Yanuca Islands, South Pacific Ocean, and Its Significance for the Tectonic History of the Vatulele-Beqa Ridge
Coastal Geomorphology of the Beqa and Yanuca Islands, South Pacific Ocean, and Its Significance for the Tectonic History of the Vatulele-Beqa Ridge
| dc.contributor.author | Nunn, Patrick D. | |
| dc.date.accessioned | 2008-04-23T05:05:02Z | |
| dc.date.available | 2008-04-23T05:05:02Z | |
| dc.date.issued | 1990-10 | |
| dc.description.abstract | Data referring to elevations of emerged shoreline indicators along the coasts of Beqa and Yanuca islands in southern Fiji were collected and indicate the presence of former mean sea levels at elevations (and shoreline names) of 0.96 m (MUAI), 1.93 m (BULl), 2.63 m (MUA2), 4.32 m (MUA3), 5.94 m (MUA4), and 7.79 m (MUA5) above present mean sea level. No dates for shoreline formation or emergence are available directly although age is believed to increase with increasing elevation. Investigations of the Beqa lagoon floor and comparison of shoreline levels between eastern Beqa, western Beqa, Yanuca, and Vatulele island (at the western end of the Vatulele-Beqa Ridge) suggest that downfaulting along faults and grabens trending a little west of north has occurred both during and since the time of shoreline emergence. Uplift related perhaps to either compression of the area between the Kadavu Trench (Hunter Fracture Zone) to the south and the Fiji Fracture Zone to the north or the renewal of northward underplating along the Kadavu Trench is believed to be responsible for shoreline emergence, which was probably contemporary along the whole Vatulele-Beqa Ridge and occurred during-the middle and late Quaternary. | |
| dc.identifier.citation | Nunn PD. 1990. Coastal geomorphology of the Beqa and Yanuca Islands, south Pacific Ocean, and its significance for the tectonic history of the Vatulele-Beqa Ridge. Pac Sci 44(4): 348-365. | |
| dc.identifier.issn | 0030-8870 | |
| dc.identifier.uri | http://hdl.handle.net/10125/1288 | |
| dc.language.iso | en-US | |
| dc.publisher | University of Hawaii Press | |
| dc.title | Coastal Geomorphology of the Beqa and Yanuca Islands, South Pacific Ocean, and Its Significance for the Tectonic History of the Vatulele-Beqa Ridge | |
| dc.type | Article | |
| dc.type.dcmi | Text |
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