Transitions in the Banda Arc-Australia Continental Collision as a Bridge to Understanding Mantle and Lithospheric Controls on Surface Tectonics
班达弧-澳大利亚大陆碰撞的转变是理解地幔和岩石圈对地表构造控制的桥梁
基本信息
- 批准号:1250214
- 负责人:
- 金额:$ 71.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2013
- 资助国家:美国
- 起止时间:2013-07-01 至 2019-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Eastern Indonesia is one of the least well-understood geological domains of our planet, and yet the region provides a truly remarkable natural experiment for unraveling some of the major puzzles of plate tectonics. The recent collision of the Australian continent with the active volcanic arc in the Banda region effectively captures the initiation of continental mountain building and the cessation of island arc volcanism, offering a rare glimpse into a set of processes that have shaped Earth's evolution over geologic time. Since oceanic subduction and subsequent continental collision have occurred in different stages along the Banda arc, we plan to use the region to study and assess the spatio-temporal evolution of this transition. This work will help fill fundamental gaps in general understanding of collisional tectonics and formulate answers to outstanding questions about the interrelationships between the history of convergence and the present-day crustal, lithospheric and mantle structure, and the way this relates to topography. This study of the Banda arc holds promise for clarifying the relationships between surface uplift, crustal deformation and recycling, lithospheric structure, subduction, and mantle convection. We have assembled an international multidisciplinary research team to constrain a sophisticated dynamical model of regional collision and subduction using passive seismology, topographic analysis, targeted geochronology, and a collaboratively led geodetic campaign. The research group includes scientists from Indonesia, Australia, Germany, the Netherlands, Portugal, and the U.S., and an important outcome will be to strengthen and catalyze future scientific collaboration between these countries. The award is co-funded by the NSF Geophysics and Tectonics Programs, and the Office of International Science and Engineering (OISE). All results, data, and newly developed methods will be shared freely online, benefiting future similar imaging or tectonic modeling efforts.
印度尼西亚东部是地球上最不为人所知的地质区之一,但该地区为解开板块构造的一些主要谜团提供了一个真正非凡的自然实验。最近澳大利亚大陆与班达地区活跃火山弧的碰撞有效地捕捉到了大陆造山的开始和岛弧火山活动的停止,提供了一个难得的机会,让人们得以一窥一系列塑造地球随地质时间演变的过程。由于大洋俯冲和随后的大陆碰撞发生在班达弧沿线的不同阶段,我们计划利用该地区来研究和评估这种过渡的时空演化。这项工作将有助于填补对碰撞构造的一般理解方面的根本空白,并对关于会聚历史与当今地壳、岩石圈和地幔结构之间的相互关系以及这种关系与地形之间的关系的悬而未决的问题提出答案。对班达弧的研究有望阐明地表隆升、地壳变形和再循环、岩石圈结构、俯冲和地幔对流之间的关系。我们已经组建了一个国际多学科研究小组,利用被动地震学、地形分析、有针对性的地质年代学和合作领导的大地测量运动来约束复杂的区域碰撞和俯冲动力学模型。该研究小组包括来自印度尼西亚、澳大利亚、德国、荷兰、葡萄牙和美国的科学家,一个重要的成果将是加强和促进这些国家之间未来的科学合作。该奖项由NSF地球物理和构造项目以及国际科学与工程办公室(OISE)共同资助。所有结果、数据和新开发的方法将在网上免费共享,有利于未来类似的成像或构造建模工作。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Landslide-driven drainage divide migration
- DOI:10.1130/g39916.1
- 发表时间:2018-05-01
- 期刊:
- 影响因子:5.8
- 作者:Dahlquist, Maxwell P.;West, A. Joshua;Li, Gen
- 通讯作者:Li, Gen
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{{ truncateString('A Joshua West', 18)}}的其他基金
Collaborative Research: NNA Research: Developing capacity for planning and adapting to riverbank erosion and its consequences in the Yukon River Basin
合作研究:NNA 研究:发展规划和适应育空河流域河岸侵蚀及其后果的能力
- 批准号:
2127444 - 财政年份:2022
- 资助金额:
$ 71.5万 - 项目类别:
Standard Grant
NSFGEO-NERC Collaborative Research: Coupling Erosion, Weathering, and Hydrologic Function in an Active Orogenic System
NSFGEO-NERC 合作研究:活跃造山系统中侵蚀、风化和水文功能的耦合
- 批准号:
2021619 - 财政年份:2020
- 资助金额:
$ 71.5万 - 项目类别:
Continuing Grant
RAPID: Collaborative Research: Tracking Amazon Forest Fires from Source to Sink
RAPID:合作研究:追踪亚马逊森林火灾从源头到汇点
- 批准号:
2000127 - 财政年份:2019
- 资助金额:
$ 71.5万 - 项目类别:
Standard Grant
MRI: Acquisition of a Shared Multi Collector Inductively Coupled Plasma Mass Spectrometer for Ocean, Earth, Environmental, and Geobiological Sciences in Southern California
MRI:购买一台共享多收集器电感耦合等离子体质谱仪,用于南加州的海洋、地球、环境和地球生物科学
- 批准号:
1920355 - 财政年份:2019
- 资助金额:
$ 71.5万 - 项目类别:
Standard Grant
Collaborative Research: Landslides related to the 2015 Mw 7.8 Gorkha earthquake, from ground motion and hazard to geomorphic response
合作研究:与 2015 年 7.8 级廓尔喀地震相关的山体滑坡,从地面运动和灾害到地貌响应
- 批准号:
1640894 - 财政年份:2016
- 资助金额:
$ 71.5万 - 项目类别:
Standard Grant
RAPID Collaborative Research: Landslides caused by the April 2015 Nepal earthquakes, from immediate hazard to tectonic driver
RAPID 合作研究:2015 年 4 月尼泊尔地震引起的山体滑坡,从直接危害到构造驱动因素
- 批准号:
1546630 - 财政年份:2015
- 资助金额:
$ 71.5万 - 项目类别:
Standard Grant
CAREER: Taking the hydrochemical pulse of the critical zone in small catchments of the Andes-Amazon
职业:掌握安第斯山脉-亚马逊小流域关键区域的水化学脉搏
- 批准号:
1455352 - 财政年份:2015
- 资助金额:
$ 71.5万 - 项目类别:
Standard Grant
Using novel genetic and isotopic techniques to understanding how microbial activity affects rates of dissolution of the mineral olivine.
使用新颖的遗传和同位素技术来了解微生物活动如何影响矿物橄榄石的溶解速率。
- 批准号:
1324929 - 财政年份:2014
- 资助金额:
$ 71.5万 - 项目类别:
Continuing Grant
A compound-specific isotopic approach to quantifying the source of terrestrial organic matter transported by a large river
一种化合物特异性同位素方法,用于量化大河输送的陆地有机物的来源
- 批准号:
1227192 - 财政年份:2012
- 资助金额:
$ 71.5万 - 项目类别:
Standard Grant
Quantifying the effects of an extreme earthquake on a large river system
量化极端地震对大型河流系统的影响
- 批准号:
1053504 - 财政年份:2011
- 资助金额:
$ 71.5万 - 项目类别:
Continuing Grant
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Banda Sea and the Indonesian Throughflow variability during the past 700,000 years
过去 70 万年的班达海和印度尼西亚贯流变化
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