气候变化领域集成服务门户(CCPortal): Structural overprinting criteria determined from regional aeromagnetic data: An example from the Hill End Trough, East Gondwana

CCPortal

DOI	10.1016/j.tecto.2020.228660
	Structural overprinting criteria determined from regional aeromagnetic data: An example from the Hill End Trough, East Gondwana
	Leseane K.; Betts P.; Armit R.; Ailleres L.
发表日期	2020
ISSN	00401951
卷号	797
英文摘要	Determining overprinting relationships in the geological record has underpinned our understanding of the evolution of the Earth and has provided the context in which to interpret geoscientific datasets. Geological overprinting relationships are generally determined from outcrop relationships. When outcrop is absent or limited, overprinting relationships using geological observations is often ineffective or ambiguous. We show how aeromagnetic data can be used to inform superposition of geological structures using a combination of folded stratigraphy, faults (both high angle and low angle), and plutons from the well-exposed Hill End Trough, in the Phanerozoic eastern Lachlan Orogen. Overprinting relationships reveal episodic inversion of the Late Silurian to Early Devonian back arc basin succession, preserved within the Hill End Trough, occurred during superimposed shortening events. The first event resulted in the development of regional folds associated with the Tabberabberan Orogeny and the second event resulted in the development of overprinting north-south and north-northwest trending faults during the Early Carboniferous Kanimblan Orogeny. Inversion structures are overprinted by a Carboniferous granite, which is overprinted by previously unrecognised northeast- and northwest conjugate faults, which we interpret to be related to the Permo-Triassic Hunter Bowen Orogeny. © 2020 Elsevier B.V.
关键词	Aeromagnetic data Folds Hill End Trough Overprinting Plutons Poly-deformed Structural geophysics
英文关键词	Stratigraphy; Aeromagnetic data; Back-arc basin; Conjugate faults; Devonians; Geological structures; Inversion structures; Permo-Triassic; Regional folds; Faulting; aeromagnetic survey; faulting; folding; geophysical method; orogeny; outcrop; overprinting; pluton; stratigraphic correlation; Australia; Hill End Trough; New South Wales
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207804
作者单位	School of Earth, Atmosphere & Environment, Monash UniversityVIC 3800, Australia
推荐引用方式 GB/T 7714	Leseane K.,Betts P.,Armit R.,et al. Structural overprinting criteria determined from regional aeromagnetic data: An example from the Hill End Trough, East Gondwana[J],2020,797.
APA	Leseane K.,Betts P.,Armit R.,&Ailleres L..(2020).Structural overprinting criteria determined from regional aeromagnetic data: An example from the Hill End Trough, East Gondwana.Tectonophysics,797.
MLA	Leseane K.,et al."Structural overprinting criteria determined from regional aeromagnetic data: An example from the Hill End Trough, East Gondwana".Tectonophysics 797(2020).