Structure of the Papuan Fold Belt, Papua New Guinea (1)

Hill, Kevin C.

doi:10.1306/0c9b2871-1710-11d7-8645000102c1865d

Cited by 9 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tapers higher than 4° are common in the fronts of accretionary prisms, FTB or gravity systems which are detached in overpressured shale rocks (Dahlen & Suppe, 1984;Morley et al, 2011;Suppe, 2007;Tuitt et al, 2012;Yang et al, 2016;Yue & Suppe, 2014). High taper values, like those of the Chartreuse and Vercors massifs, are in the range of tectonic wedges like the Barbados accretionary prism (8°; Casey- Moore et al, 1988), the Sabah prism (10°; Hall & Wilson, 2000), the Makran accretionary prism (10°; Ellouz- Zimmermann et al, 2007), the Hikurangi accretionary prism in New-Zealand (10°; Morley et al, 2011), or FTB like the Papua-New Guinea thrust system (12°; Hill, 1991), the Peruvian Sub-Andean thrust system (10°; Baby et al, 2018), or else the cordilleran system in NE Mexico (12°, Deville et al, 2020). Such high taper tectonic wedges are associated with high pressure conditions in overpressured shale at the decollement level close to natural hydraulic fracturing conditions as shown by pressure measurements coupled with numerical modeling in the Barbados accretionary prism (Deville et al, 2010) or the Papua-New Guinea FTB DEVILLE 10.1029/2020TC006591 (Callot et al, 2017).…”

Section: Control Of Heritage On the Nature Of The Decollementmentioning

confidence: 99%

Structure of the Tectonic Front of the Western Alps: Control of Fluid Pressure and Halite Occurrence on the Decollement Processes

Deville

2021

Tectonics

View full text Add to dashboard Cite

Despite a long history of geological studies, the deep structure of the tectonic front of the Western Alps (Figures 1 and 2) remains poorly known, mainly because of the lack of available published seismic reflection studies and because of only few wells available providing deep calibration. The published data which offers a seismic information along a full transect across the foreland fold-and-thrust belt of the western Alps (including Jura Mountains) was provided by the research program ECORS-ALP of deep seismic acquisition

show abstract

Section: Control Of Heritage On the Nature Of The Decollementmentioning

confidence: 99%

Structure of the Tectonic Front of the Western Alps: Control of Fluid Pressure and Halite Occurrence on the Decollement Processes

Deville

2021

Tectonics

View full text Add to dashboard Cite

show abstract

Links between foreland rheology and the growth and evolution of a young mountain belt in New Guinea

Knight

Copley

Bertoni

et al. 2021

Geophysical Journal International

View full text Add to dashboard Cite

SUMMARY We have studied the active and recent tectonics of New Guinea, using earthquake source modelling, analysis of gravity anomalies, seismic reflection profiles, and thermal and mechanical models. Our aim is to investigate the behaviour and evolution of a young continental deformation belt, and to explore the effects of lateral variations in foreland rheology on the deformation. We find that along-strike gradients in the lithosphere thickness of the southern foreland have resulted in correlated changes in seismogenic thickness, likely due to the effects on the temperature structure of the crust. The resulting variation in the strength of the foreland means that in the east, the foreland is broken through on thrust faults, whereas in the west it is relatively intact. The lack of correlation between the elevation of the mountain belt and the seismogenic thickness of the foreland is likely to be due to the time taken to thicken the crust in the mountains following changes in the rheology of the underthrusting foreland, as the thinned passive margin of northern Australia is consumed. The along-strike variation in whether the force exerted between the mountains and the lowlands is able to break the foreland crust enables us to estimate the effective coefficient of friction on foreland faults to be in the range of 0.01–0.28. We use force-balance calculations to show that the recent tectonic re-organization in western New Guinea is likely to be due to the development of increasing curvature in the Banda Arc, and that the impingement of continental material on the subduction zone may explain the unusually low force it exerts on western New Guinea.

show abstract

Mesozoic-Cenozoic evolution of Australia's New Guinea margin in a west Pacific context

Hill¹,

Hall²

2003

Evolution and Dynamics of the Australian Plate

132

189

View full text Add to dashboard Cite

Structure of the Papuan Fold Belt, Papua New Guinea (1)

Cited by 9 publications

References 14 publications

Structure of the Tectonic Front of the Western Alps: Control of Fluid Pressure and Halite Occurrence on the Decollement Processes

Structure of the Tectonic Front of the Western Alps: Control of Fluid Pressure and Halite Occurrence on the Decollement Processes

Links between foreland rheology and the growth and evolution of a young mountain belt in New Guinea

Mesozoic-Cenozoic evolution of Australia's New Guinea margin in a west Pacific context

Contact Info

Product

Resources

About