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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
PIS将扩大他们之前对巴布亚新几内亚Huon海湾碰撞环境中的沉降率的研究。这项新的研究将对短期下沉速率提供更严格的约束,并有助于更好地理解碰撞环境中隆升、下沉和会聚之间的关系,以及更好地确定过去400k年的海平面变化年表。PI将首先使用SeaBeam获取溺水珊瑚平台的水深图像,然后使用分辨率为几米的DSL120。这些珊瑚礁将用ROV系统进行采样,以获得Th230个日期。观测到的下沉速率将与碰撞载荷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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