In orogenic belts, a basal décollement zone often develops at depth to accommodate the shortening due to folding and thrusting of the sedimentary cover. In the Early Mesozoic intracontinental Xuefengshan Belt of South China, such a décollement zone is exposed in the core of anticlines formed by the emplacement of the late-orogenic granitic plutons. The detailed, multi-scale structural analysis ...

In order to better understand the late Paleozoic tectonic evolution of southwestern Central Asian Orogenic Belt (CAOB), we carried out structural and geochronological studies on poorly investigated Xiaergou Wulasitai shear zones around in Chinese Tianshan. The zone is connecting segment between North Tianshan Fault Main Shear Zone along northern margin Yili - blocks, it strikes NW-SE with a wid...

[1] A reconnaissance survey of multibeam bathymetry and magnetic anomaly data of the Menard Fracture Zone allows for significant refinement of plate motion history of the South Pacific over the last 44 million years. The right-stepping Menard Fracture Zone developed at the northern end of the Pacific-Antarctic Ridge within a propagating rift system that generated the Hudson microplate and forme...

We established a 5,000 m thick profile through the paleo lower oceanic crust of Samail ophiolite (Sultanate Oman, Wadi Gideah), in order to investigate accretion processes beneath fast-spreading mid-ocean ridges. The is regarded as best on-land analog for fast-spread crust, and Gideah allows sampling entire along bed. Here, we provide microstructural constraints crustal ridges, which reveal cha...

We exploit the potential of magnetic fabrics acting as strain markers in folded layers, by analysing an exceptionally well-exposed, recent (<1 kyr) slump horizon unlithified lake deposits within Dead Sea basin. The ?3-m-long soft-sediment layer, together with underlying basal detachment, and ‘undeformed’ reference layer are extensively sampled (n = 97) for anisotropy susceptibility (AMS) analys...

The aim of this work is the application anisotropy magnetic susceptibility (AMS) to study volcanic materials from Late Carboniferous-Permian Cadí basin (southern Pyrenees) in order (i) explore limits technique ancient that have undergone strong chemical alteration and a complex tectonic evolution (ii) provide new insights on deposition tectonically controlled sedimentary basin. To establish com...

Abstract The Twakputs Gneiss is a garnetiferous, K-feldspar megacrystic, biotite granite-granodiorite orthogneiss. It represents major unit in the Kakamas Domain of Mesoproterozoic Namaqua-Natal Metamorphic Province extending about 250 km between Riemvasmaak South Africa and Grünau southern Namibia. occurs as foliation-parallel, sheet-like bodies tightly infolded together with granulite-facies ...

Fluvial strata dominated internally by sedimentary structures of interpreted upper flow regime origin are moderately common in the rock record, yet their abundance is not appreciated and many examples may go unnoticed. A spectrum of sedimentary structures is recognised, all of which occur over a wide range of scale: 1. cross-bedding with humpback, sigmoidal and ultimately low-angle cross-sectio...

Middle to Upper Triassic (Upper Ladinian to Lower Carnian) deep-sea sedimentary rocks crop out across a large area west of Nakhlak village, Central Iran and have been named Ashin Formation. The up to 304m thick, turbiditic, siliciclastic Ashin Formation consists of alternating turbiditic, thin- and medium-bedded calcareous sandstones, purple, fine-grained volcaniclastic sandstones, and mostly g...