A GLORIA, Hydrosweep, Geophysical Investigation of the Juan Fernandez Microplate at the Pacific-Antarctic-Nazca Triple Junction (Renewal)

太平洋-南极-纳斯卡三重交界处胡安·费尔南德斯微板块的 GLORIA、Hydrosweep 地球物理调查（更新）

• 批准号: 9216866
• 负责人: Roger Larson
• 金额: $ 9.01万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-02-15 至 1997-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9216866&HistoricalAwards=false
• 关键词: GLORIA; Hydrosweep; Geophysical; Investigation; Juan

The Juan Fernandez microplate was surveyed in 1991, obtaining GLORIA sidescan, Hydrosweep bathymetric, magnetic, gravity, and 3.5 kHz data. The principal investigator will conduct an extended analysis of these data and will map in detail the structures of the Juan Fernandez microplate, determining the best-fitting model or models for its tectonic evolution, and will study the forces that derive microplate evolution. Questions to be addressed include: (1) What is the present-day detailed structural and tectonic nature of the Juan Fernandez microplate and its boundaries? (2) What is the origin and detailed evolution of this microplate? (3) How is the lithosphere deformed along the Juan Fernandez-Antarctic plate boundary? (4) How does the Juan Fernandez microplate compare to other microplates and what general model best applies to their origin and tectonic evolution.

1991年对胡安费尔南德斯微板进行了调查， 格洛丽亚侧扫、Hydrosweep测深、磁力、重力和3.5 kHz数据。 主要研究者将进行一项扩展的 分析这些数据，并将详细绘制 Juan费尔南德斯微孔板，确定最佳拟合模型或 为它的构造演化建模，并将研究 推导出微板演化。 需要解决的问题包括： (1)现今的详细构造和构造性质是什么 胡安·费尔南德斯微板块及其边界(2)是什么 这个微孔板的起源和详细的演化过程(3)怎么样 岩石圈沿着胡安·费尔南德斯-南极板块变形 界限？(4)胡安费尔南德斯微孔板和 其他微孔板和什么样的一般模型最适用于他们的 成因与构造演化