| Abstract: | Large sediment deposits on the reff front around Oahu are a possible resource for replenishing eroded beaches. High-resolution subbottom profiles clearly depict the deposits in three study areas: Kailua Bay off the windward coast, Makua to Kahe Point off the leeward coast, and Camp Erdman to Waimea off the north coast. Most of the sediment is in water depths between 20 and 100 m, resting on submerged shelves created during lowstands of sea level. The mapped deposits have a volume of about 4 ?? 108 m3 in water depths less than 100 m, being thickest off the mouth of channels carved into the modern insular shelf, from which most of the sediment issues. Vibracore samples contain various amounts of sediment of similar size to the sand on Oahu beaches, with the most compatible prospects located off Makaha, Haleiwa, and Camp Erdman, and the least compatible ones located in Kailua Bay. Laboratory tests show a positive correlation of abrasion with Halimeda content: samples from Kailua Bay suffered high amounts of attrition, but others were comparable to tested beach samples. The common gray color of the offshore sediment, aesthetically undesirable for sand on popular tourist beaches, was diminished in the laboratory by soaking in heated hydrogen peroxide. ?? Taylor and Francis Inc. |
| Genre: | Article |
| ProdID: | 70027117 |
| Citation Author: | Hampton, M. A.; Blay, C. T.; Murray, C. J. |
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| Citation End Page: | 102 |
| Citation Issue: | 1-2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Marine Georesources and Geotechnology |
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| Citation Number Of Pages: | 38 |
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| Citation Search Results Text: | Carbonate sediment deposits on the reef front around Oahu, Hawaii; 2004; Article; Journal; Marine Georesources and Geotechnology; Hampton, M. A.; Blay, C. T.; Murray, C. J. |
| Citation Start Page: | 65 |
| Citation Volume: | 22 |
| Citation Year: | 2004 |
| Type: | citation/reference |
| Text: | Carbonate sediment deposits on the reef front around Oahu, Hawaii; 2004; Article; Journal; Marine Georesources and Geotechnology; Hampton, M. A.; Blay, C. T.; Murray, C. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1080/10641190490473407 |
| Date Other: | Thu, 1 Jan 2004 00:00 -0600 |
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