DOI: 10.1016/j.tecto.2020.228660
论文题名: Structural overprinting criteria determined from regional aeromagnetic data: An example from the Hill End Trough, East Gondwana
作者: Leseane K. ; Betts P. ; Armit R. ; Ailleres L.
刊名: Tectonophysics
ISSN: 00401951
出版年: 2020
卷: 797 语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170637
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: School of Earth, Atmosphere & Environment, Monash UniversityVIC 3800, Australia
Recommended Citation:
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]. Tectonophysics,2020-01-01,797