Collaborative Research: Tectonics and Sea Level History from Submerged Coral Platforms in the Huon Gulf, Papua New Guinea

合作研究：巴布亚新几内亚休恩湾水下珊瑚台地的构造和海平面历史

• 批准号: 9907153
• 负责人: Eli Silver
• 金额: $ 23.21万
• 依托单位: University of California-Santa Cruz
• 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: 2001-01-15 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9907153&HistoricalAwards=false
• 关键词: Collaborative; Research; Tectonics; Sea; Level

The PIs will expand their previous study of the subsidence rates in a co1lisional setting in the Huon Gulf of Papua New Guinea. The new study will provide tighter constraints on the short term subsidence rates, and lead to a better understanding of the relationships between uplift, subsidence and convergence in a collisional setting, as well as better chronology for sea-level changes for the last 400 k. years. The PIs will obtain bathymetric images of the drowned coral platforms first with the SeaBeam and later with DSL120 with a resolution of several meters. The reefs will be sampled with an ROV system to obtain Th230 dates. Observed rates of subsidence will be compared to model elastic flexural response to collisional loads.

PI将在巴布亚新几内亚的Huon Gulf的Co1lisional环境中扩大对沉降率的研究。 这项新的研究将对短期沉降率提供更严格的限制，并可以更好地理解碰撞环境中隆起，沉降和收敛性之间的关系，并更好地了解过去400 K的海平面变化的时间。年。 PIS将首先使用海面，然后使用DSL120获得溺水的珊瑚平台的测深图像，分辨率为几米。 礁石将使用ROV系统进行采样，以获得230日期。 观察到的沉降速率将与模型弹性弯曲对碰撞载荷的反应进行比较。