Collaborative Research: A GPS Study of Caribbean Plate Kinematics and Distributed Deformation Between the Caribbean and North American Plates
合作研究:加勒比板块运动学和加勒比板块与北美板块之间的分布式变形的 GPS 研究
基本信息
- 批准号:9806456
- 负责人:
- 金额:$ 3.4万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:1998
- 资助国家:美国
- 起止时间:1998-07-15 至 2000-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
9806456DixonThis project is a continuation of a long-term NSF-sponsed effort to measure the present-day motion of the Caribbean plate and to determine the manner in which rigid plate motion is accommodated along the Caribbean-North America plate boundary near Hispaniola and Puerto Rico. The objectives include: (1) Construction of a Caribbean plate kinematic model using GPS-derived velocities from sites that span the Caribbean plate and to use the same velocities to test for non-rigidity of the Caribbean plate; (2) determination of how Caribbean-North America motion is partitioned by the faults that separate the two plates in the vicinity of Hispaniola and Puerto Rico, and ultimately, to extract information about the dynamics of this plate boundary by modeling elastic strain and extracting block rotations from the velocity field; (3) determination of the slip rate and level of elastic strain accumulation along the Septentrional fault in northern Hispaniola, which has not experienced a major earthquake in more than 700 years despite geologic evidence for significant slip over the past several thousand years. Occupations in 1986, 1994, and 1995 of a GPS network spanning the Caribbean-North America plate boundary have set the stage for determinations of site displacements that should resolve these questions, and sufficient time has now elapsed so that additional measurable (ranging from 10-100 millimeters) displacements have occurred within the exisiting network. The proposed work will include a reoccupation of the existing sites as well as densification and modest expansion of the network.
这个项目是由美国国家科学基金会资助的长期努力的延续,旨在测量加勒比板块的现今运动,并确定沿伊斯帕尼奥拉岛和波多黎各附近的加勒比-北美板块边界的刚性板块运动方式。目标包括:(1)利用从横跨加勒比板块的地点获得的gps速度构建加勒比板块运动学模型,并使用相同的速度测试加勒比板块的非刚性;(2)确定在伊斯帕尼奥拉岛和波多黎各附近分离两个板块的断层如何分割加勒比-北美运动,并最终通过模拟弹性应变和从速度场中提取块体旋转来提取该板块边界的动力学信息;(3)测定了伊斯帕尼奥拉北部七层断层的滑动速率和弹性应变积累水平,该断层在过去的几千年里尽管有地质证据表明存在明显的滑动,但在700多年里没有经历过一次大地震。1986年、1994年和1995年跨越加勒比海-北美板块边界的GPS网络的工作为确定应该解决这些问题的地点位移奠定了基础,现在已经过去了足够的时间,因此在现有网络中已经发生了额外的可测量位移(范围从10-100毫米)。拟议的工作将包括重新占用现有场地,以及密集化和适度扩大网络。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Timothy Dixon其他文献
Characterization of the pH-Dependent Disintegration of Chemically Modified Alginate Hydrogels
- DOI:
10.1007/s40883-024-00378-6 - 发表时间:
2025-01-06 - 期刊:
- 影响因子:1.900
- 作者:
John Morningstar;Abdelrahman Alwan;Timothy Dixon;Emmanuel C. Opara;Mark E. Welker - 通讯作者:
Mark E. Welker
Critical Success Factors in Urban"Brownfield Regeneration"
城市“棕地更新”的关键成功因素
- DOI:
- 发表时间:
2010 - 期刊:
- 影响因子:0
- 作者:
Timothy Dixon;Noriko Otsuka;Hirokazu Abe - 通讯作者:
Hirokazu Abe
Giant Left Ventricular Thrombus Formation in the Setting of Severe Aortic Stenosis and Heavy Cigarette Smoking
严重主动脉瓣狭窄和大量吸烟时左心室巨大血栓形成
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
M. Elmassry;Rubayat Rahman;Timothy Dixon;Brandon Rogers;N. Nair - 通讯作者:
N. Nair
Present Situationand Local Characteristics of Previously Developed land in Japan
日本旧开发土地现状及地域特征
- DOI:
- 发表时间:
2010 - 期刊:
- 影响因子:0
- 作者:
Timothy Dixon;Noriko Otsuka;Hirokazu Abe;Tomoko Miyagawa - 通讯作者:
Tomoko Miyagawa
Timothy Dixon的其他文献
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{{ truncateString('Timothy Dixon', 18)}}的其他基金
Collaborative Research: Improved Understanding of Subduction Zone Tsunami Genesis Using Sea Floor Geodesy Offshore Central America
合作研究:利用中美洲近海海底大地测量学提高对俯冲带海啸成因的了解
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2314270 - 财政年份:2024
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$ 3.4万 - 项目类别:
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合作研究:大陆架大地测量:持续开发基于 GPS 的低成本海底大地测量系统
- 批准号:
2023633 - 财政年份:2020
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$ 3.4万 - 项目类别:
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哥斯达黎加北部俯冲带的大地测量观测
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Standard Grant
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测量海底运动:大陆边缘大地测量新技术
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1538179 - 财政年份:2015
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Standard Grant
Collaborative Research: RAPID: Nevado del Ruiz Volcano, Colombia: Enhancing Geodetic Observations and Digital Elevation Models in Response to Recent Activity
合作研究:RAPID:哥伦比亚内瓦多德尔鲁伊斯火山:增强大地测量观测和数字高程模型以应对近期活动
- 批准号:
1546924 - 财政年份:2015
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$ 3.4万 - 项目类别:
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Geodetic observations at the early stage of subduction zone seismic cycle: towards complete seismic cycle coverage
俯冲带地震周期早期大地测量观测:走向完整的地震周期覆盖
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1345100 - 财政年份:2014
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Continuing Grant
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合作研究:为哥斯达黎加尼科亚半岛板块边界观测站第二阶段采购 GPS 和地震设备
- 批准号:
1140261 - 财政年份:2011
- 资助金额:
$ 3.4万 - 项目类别:
Standard Grant
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- 批准号:
1158167 - 财政年份:2011
- 资助金额:
$ 3.4万 - 项目类别:
Standard Grant
Collaborative Research: Acquisition of GPS and seismic equipment for Phase 2 of a Plate Boundary Observatory, Nicoya Peninsula, Costa Rica
合作研究:为哥斯达黎加尼科亚半岛板块边界观测站第二阶段采购 GPS 和地震设备
- 批准号:
0842137 - 财政年份:2009
- 资助金额:
$ 3.4万 - 项目类别:
Standard Grant
Collaborative Research: A Plate Boundary Observatory on the Nicoya Peninsula, Costa Rica
合作研究:哥斯达黎加尼科亚半岛的板块边界观测站
- 批准号:
0841091 - 财政年份:2009
- 资助金额:
$ 3.4万 - 项目类别:
Standard Grant
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