Wireline Coring Drowned Reefs Offshore the Virgin Islands: Sea Level, Sea Surface Temperature and Radiocarbon Calibration

对维尔京群岛近海淹没的珊瑚礁进行电缆取芯：海平面、海面温度和放射性碳校准

• 批准号: 9911637
• 负责人: Richard Mortlock
• 金额: --
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-01 至 2008-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9911637&HistoricalAwards=false
• 关键词: Wireline; Coring; Drowned; Reefs; Offshore

The PI plans to attempt wireline coring on drowned reef from a leased drilling platform offshore British Virgin Islands. The objective is to extend the sea-level record from 20 k.y. back to 60 k.y. and to extend the C-14 calibration back to 40 k.y. Stable isotopic analyses of the cores will allow extending the tropical sea-surface temperature record up to 60 k.y.B.P. Virgin Islands are situated on a stable platform and thus reconstruction of the 20-60 k.y. record here will be more reliable for this time slice than other places where tectonics (uplift/subsidence) were active at that time.

PI计划尝试从英属维尔京群岛近海租赁的钻井平台上对淹没的珊瑚礁进行绳索取芯。其目标是将海平面记录从20 k.y.回到60公里。并将C-14的校准范围扩大到40千年对岩心进行稳定同位素分析后，热带海表温度记录可延长至60 k. y. B. P.，维尔京群岛位于一个稳定的平台上，因此可重建20-60 k. y. B. P.。在这个时间段，这里的记录将比当时构造（隆起/沉降）活跃的其他地方更可靠。