In mountainous areas, rock avalanches swarm downslope leading to large impact forces on structures. Baffle systems are usually set up in torrent channels to dissipate the flow energy and reduce the destructive effects. In this paper, a crown-like baffle system is proposed to better dissipate the flo...

The M_s 8.0 Wenchuan earthquake of 2008 dramatically changed the terrain surface and caused long-term increases in the scale and frequency of landslides and debris flows. The changing trend of landslides in the earthquake-affected area over the decade since the earthquake remains largely unknown. In ...

Understanding the joint effects of earthquakes and driving factors on the spatial distribution of landslides is helpful for targeted disaster prevention and mitigation in earthquake-prone areas. By far, little work has been done on this issue. This study analyzed the co-seismic landslide of the M_s 8...

This study presents a numerical approach for assessment of the structure settlement problems in liquefied soils. The fluid dynamics theory was applied to model the liquefied soils and the rigid body dynamics theory was applied to compute the structure's translational and angular motions in six degre...

An experimental study is conducted to describe rate-dependent shear strength in a submerged granular medium to understand the mystery of submarine landslides with extremely small slide angles and long run-out distances. The experimental apparatus allows a long-span shear strain rate, $ \dot{\mathit{...

Rock bolts are widely employed as an effective and efficient reinforcement method in geotechnical engineering. Sandwich composite structures formed by hard rock and weak rock are often encountered in practical projects. Furthermore, the spatial structure of the rock mass has a direct influence on th...

In this work, the correlations between spatial distributions of landslide point density (LPD) and strong ground motions of the three strong earthquakes are qualitatively investigated. Meanwhile the qualitative relationship between the distribution of LPD and the fault rupture process is also charact...

The flow behavior of liquefied sand is reported using a self-developed testing system that enables the flow processes of liquefied sand to be studied at different slopes of the soil layers. The test device is mainly composed of a vibrating table, a transparent model box and a high-speed video monito...

Choice of appropriate mapping units is important in landslide susceptibility mapping (LSM). There are various possible units for this choice, while it remains unclear which one is better in performance. The purpose of this study is to make a quantitative comparison of two commonly-used units: slope-...

The Ediacaran to Cambrian transition witnessed great biological and environmental turnovers from the Precambrian to Phanerozoic. These changes are also reflected by the fossil records during that time. However, the fossil distribution was highly heterogenous. While diverse fossils were constantly fo...

A continental-scale strike-slip shear zone frequently presents a long-lasting deformation and physical expression of strain localization in a middle to lower crustal level. However, the deformation evolution of strain localization at a small-scale remains unclear. This study investigated < 10 cm ...

A large number of Late Silurian–Early Devonian intrusive rocks are distributed in the central Beishan orogenic belt (BOB). Tectonic setting of these intrusive rocks is of great significance to the study of the subduction and accretion of the Paleo-Asian Ocean. Previous studies show that most of the ...

The WNW-ESE-trending Baiyunshan ophiolitic mélange is exposed in the central Beishan orogenic belt (BOB), between the Hongliuhe-Niujuanzi and Xichangjing ophiolitic mélanges in the west and east, respectively. Here we present new petrological, geochemical, and zircon U-Pb age data for the Baiyunshan...

The microbial dolomite model has been used to interpret the origin of sedimentary dolomite. In this model, the formation of low-temperature protodolomite, an important precursor to sedimentary dolomite, can be facilitated either by actively metabolizing cells of anaerobic microbes and aerobic haloph...

The Qushenla Formation volcanic rocks are widely exposed in the northern margin of the Bangong-Nujiang suture zone (BNSZ). Research on these rocks is of great significance for understanding the tectonic evolution of the Bangong-Nujiang Tethys Ocean (BNTO). In this study, a systematic geological surv...

A succession of Permian bauxite deposits are concentrated in Wuchuan, Zheng'an and Daozhen counties of northern Guizhou, South China. These deposits overlie contrast bedrocks, which are discriminated from the other bauxites of karst type in South China. Horizons of these bauxites are typified by san...

The petrogenesis and tectonic affinity of Late Mesoproterozoic igneous rocks in the Yangtze Block are important to understand its tectonic evolution within the context of the Rodinia supercontinent's reconstruction. Here, we report the SHRIMP zircon U-Pb ages, geochemistry, and Nd-Hf isotopic data f...

The Eastern Pontides orogenic belt (EPOB) represents a significant segment of the Alpine-Himalayan orogenic belt that evolved from the Paleozoic to Cenozoic periods. Here we report new zircon U-Pb ages, together with Lu-Hf isotopes, and whole-rock geochemical and Sr-Nd isotopic analyses of plutonic ...

The outcrop investigations provide a better comprehension to interrelate facies-diagenesis and fracture networks for the evaluation of reservoir potential of the carbonate rocks. In this paper, we targeted Kahi-Section (Nizampur Basin) and Peeran Tangai-Section (Kalachitta Range) to analyze structur...

Coal correlation cannot only guide coal and coalbed methane exploitation, but may also provide valuable information for the evolution of the paleoclimate and paleoenvironment during coal-accumulation periods. It is difficult to undertake coal correlation in a terrestrial basin due to multiple superi...

Environment isotopes (δ¹⁸O and δ²H) and Cl/Br ratios in surface water and groundwater are combined to investigate arsenic mobilization in aquifer system of the Jianghan Plain. The groundwater has relatively high arsenic concentrations, ranging from 3.6 to 1 055.3 μg/L with an average of 102.2 μg/L, ...

The paper is dedicated to consider the approach of longitudinal electrical conductivity maps construction for Central Tien Shan region and to complete the comparison analysis of these maps with related seismic tomography data. The results of joint analysis of longitudinal electrical conductivity dis...

One of the most controversial minerals in their origin and occurrence around the world is manganese deposits. The Abu Zenima area is rated one of the most economically important places where manganese ore deposits (Mn ODs) are located in the southwest Sinai microplate, Egypt. These deposits are conf...