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

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
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2001
资助国家:
美国
项目状态:
已结题
起止时间:
2001-01-15 至 2004-12-31

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中文摘要
翻译
pi将扩展他们之前对巴布亚新几内亚Huon湾碰撞环境下沉降率的研究。这项新研究将对短期沉降率提供更严格的限制,并使人们更好地理解碰撞环境中隆起、沉降和收敛之间的关系,以及对过去400k年海平面变化的更好的年表。pi将首先使用SeaBeam,然后使用DSL120获得淹没珊瑚平台的水深图像,分辨率为几米。将使用ROV系统对珊瑚礁进行采样,以获得Th230日期。观测到的沉降率将与碰撞荷载下的弹性弯曲响应模型进行比较。
英文摘要
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.
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