Structural, stratigraphic and geodynamic controls on the evolution of the Carboniferous succession of northern England and southern Scotland
Structural, stratigraphic and geodynamic controls on the evolution of the Carboniferous succession of northern England and southern Scotland
批准号:
1983859
负责人:
金额:
$0.0万
依托单位:
依托单位国家:
英国
项目类别:
Studentship
财政年份:
2017
资助国家:
英国
项目状态:
已结题
起止时间:
2017 至 --
中文摘要
控制英格兰北部和苏格兰南部石炭纪盆地系统演化的构造和地球动力学过程,以及与邻近北海的相互作用,人们了解得很少。因此,沉积充填物的相关性以及对它们的层序地层控制仍然难以捉摸。该项目的主要目的将是应用和进一步发展三维岩石圈尺度的构造模拟技术,以确定控制诺森伯兰海槽、索尔韦盆地、Stainmore海槽、伊甸谷和米德兰山谷内的石炭纪序列演化的地质和地球动力学过程的相互作用,以及它们的近海延伸和相对隆起的中间地区,如阿尔斯通地块,其中在前石炭纪基底内含有大型花岗岩侵入体。这些模型将受到从BGS数据库和公共领域建立的区域尺度横断面的限制,选定的剖面将被顺序恢复,以提供石炭纪期间构造和地层结构的“快照”。与地下采矿有关的丰富的沉积数据,结合实地获取的构造数据,将提供进一步的制约。这项研究将深入了解深部过程的重要性,如依赖深度的伸展作用,以及它们如何与大陆内“盆地和块体”环境中的盆地控制过程相互作用,如水深测量和沉积充填。特别是,模型结果将提供对随着海平面、构造和沉积物供应而随时间发展的可容纳空间的洞察,为这一相对了解较少的盆地系统内的石炭纪层序地层解释提供一个结构和地球动力学框架。
英文摘要
The structural and geodynamic processes that have controlled the evolution of the Carboniferous basin system of northern England and southern Scotland, as well as interactions with the neighbouring North Sea, are very poorly understood. As a consequence, correlations of sedimentary fill, and sequence stratigraphical controls upon them, remain elusive. The main aim of this project will be to apply and further develop 3D lithosphere-scale tectonic modelling techniques in order to determine the interplay of geological and geodynamic processes that have controlled the evolution of the Carboniferous succession within the Northumberland Trough, Solway Basin, Stainmore Trough, Vale of Eden Basin and Midland Valley, as well as their offshore extensions and intervening areas of relative uplift such as the Alston Block, which contain large granitic intrusions within the pre-Carboniferous basement. The models will be constrained by regional-scale cross-sections constructed from the BGS database and the public domain, with selected profiles sequentially restored to provide a "snapshot" of structural and stratigraphical architecture during the Carboniferous Period. Further constraint will be provided by the wealth of subsurface mining-related sedimentary data, combined with the field acquisition of structural data. The study will provide insights into the importance of deep processes, such as depth-dependent extension, and how they interact with basin-controlling processes, such as bathymetry and sedimentary infill, within intra-continental, 'basin and block' settings. In particular, model results will provide insights into the development of accommodation space through time in response to sea level, tectonics and sediment supply, providing a structural and geodynamic framework for the sequence stratigraphical interpretation of the Carboniferous succession within this relatively poorly understood basin system.
期刊论文(2)
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科研奖励(0)
会议论文
Structural and geodynamic modelling of the influence of granite bodies during lithospheric extension: Application to the Carboniferous basins of northern England
岩石圈伸展过程中花岗岩体影响的结构和地球动力学模型:在英格兰北部石炭纪盆地的应用
DOI:
10.1016/j.tecto.2019.02.008
发表时间:
2019
期刊:
Tectonophysics
影响因子:
2.9
作者:
[Howell L]
通讯作者:
Howell L
DOI:
10.1111/gto.12297
发表时间:
2020
期刊:
Geology Today
影响因子:
--
作者:
[Howell L]
通讯作者:
Howell L
海外基金