This paper presents a reappraisal of datasets from Titihaoa-1, an offshore petroleum exploration drillhole that intersects ∼2740 m-thick Holocene to early-middle Miocene sedimentary succession in the Titihaoa Sub-basin, part Hikurangi accretionary wedge. The well provides important datapoint southern subduction margin. We present new and revised foraminiferal biostratigraphic paleoenvironmental...

Here, we study slate microfabrics from the exhumed accretionary wedge of central European Alps and focus on development foliation. High-resolution micrographs novel BIB-SEM imaging Synchrotron X-ray Fluorescence Microscopy are analysed with 2D auto-correlation functions to quantify geometry spacing along a metamorphic gradient covering outer inner (200–330 °C). The sedimentary layering primaril...

The polyphase structural evolution of a sector the internal Central Apennines, where significance pelagic deposits atop neritic carbonate platform and active margin sediments has been long debated, is here documented. results new geological survey in Volsci Range, supported by stratigraphic constraints from syn-orogenic deposits, are integrated with analysis 2D seismic reflection lines availabl...

Using SeaBeam bathymetry and multichannel seismic reflection records we have identified three large submarine landslides on the southern Oregon Cascadia margin. The area enclosed by the three arcuate slide scarps is approximately 8000 km, and involves an estimated 12,000–16,000 km of the accretionary wedge. The three arcuate slump escarpments are nearly coincident with the continental shelf edg...

Thrust-top basins (or "piggyback", "wedge-top", or "structural" basins) are a fairly common feature in the accretionary and orogenic wedges worldwide. The formation of thrust-top provides information on compressional deformation history various subductioncollisional settings, was mainly controlled by kinematics competing growth faultrelated fold thrust sequences. aim this research topic to asse...

Subducted sediments are thought to lubricate the subduction interface and promote faster plate speeds. However, global observations not clear-cut on relationship between amount of motion. Sediments also influence slab dip, but variations in geometry depend multiple factors. Here we use 2D thermomechanical models explore how can dynamics geometry. We find that thick lead slower due an increase m...

Great earthquakes rarely occur within active accretionary prisms, despite the intense long-term deformation associated with the formation of these geologic structures. This paucity of earthquakes is often attributed to partitioning of deformation across multiple structures as well as aseismic deformation within and at the base of the prism (Davis et al., 1983). We use teleseismic data and satel...