Influence of lithosphere and basement properties on the stretching factor and development of extensional faults across the Otway Basin, southeast Australia

The influence of regional stress and structural control on the shape of maar craters

“…The area covers more than 19,000 km 2 and contains over 400 eruptive vents [Boyce 2013], including the 23 maars included in this study. Most of the maars of the NVP (and all of the maars utilized in this study) fall within the Otway Basin, an extensional basin formed during the break-up of Australia and east Antarctica at the end of the Jurassic [Kharazizadeh et al 2017]. Eruptive products in the NVP range from tholeiitic to alkali basalt dated from the Pliocene through the Holocene [Lesti et al 2008].…”

“…The majority of the maars occur in the southern part of the NVP. All of the maars used cut through the Cretaceous-Pliocene sedimentary sequence of the Otway Basin and lavas from earlier activity in the NVP [Boyce 2013;Jordan et al 2013;Kharazizadeh et al 2017;Lesti et al 2008]. This sedimentary sequence is deposited directly on top of the Paleozoic basement [Lesti et al 2008].…”

The 2018 Mw7.5 Highlands Earthquake in Papua New Guinea: Implications for Structural Style in an Active Fold and Thrust Belt

“…This leads us to believe that crustal structure, rather than composition, was the primary control on the pattern of stress release and strain partitioning during the PNG Highlands earthquake and we can therefore infer that basement structure has also had a principal role in the evolution of variable structural styles observed throughout the PFTB. Although crustal composition may not have been the primary control on PNG Highland earthquake-related deformation, it likely had an important indirect influence having impacted the form and distribution of basement structure (e.g., the Komewu, Darai, and Lavani-Kutubu fault zones) during the evolution of the margin-an association that is well documented in extensional settings worldwide (e.g., Brune et al, 2017;Kharazizadeh et al, 2017;Smith & Mosley, 1993).…”

The Influence of Pre‐existing Basement Faults on the Cenozoic Structure and Evolution of the Proximal Domain, Northern South China Sea Rifted Margin

“…Important for this paper, a recent study based on these high‐resolution 3D seismic data revealed a complex network of pre‐existing faults within the basement of the Cenozoic rift basin in the northern SCS margin (Ye, Mei, Shi, Camanni, et al, ). Therefore, how this region of the Cenozoic rift basin evolved to its current architecture needs to be reconsidered from the perspective of basement control since it is well known in rift basins worldwide that pre‐existing basement structure is a key factor in shaping the rift architecture and influencing the kinematic evolution of rifting (e.g., Autin et al, ; Bird et al, ; Bladon et al, ; Bonini et al, , ; Corti et al, ; Fazlikhani et al, ; Gibson et al, ; Katumwehe et al, ; Kharazizadeh et al, ; Manatschal et al, ; Phillips et al, ; Rotevatn et al, ).…”