Chemical weathering indices are commonly used for characterizing weathering profiles by incorporating bulk major element oxide chemishy inlo a single metric for each sample. Generally, on homogeneous parent rocks, weathering indices change systematically with depth. However, the weathering of heterogeneous metamorphic rocks confounds the relationship between weathering index and depth. In this ...

Landslides associated with hillside cuttings in igneous rock saprolites are a serious natural hazard in Hong Kong and have been extensively studied by government agencies and local universities for many years from the perspective of soil and rock engineering. A review of the case studies for some major landslides, especially deep-seated landslides, shows certain puzzling features. First, a numb...

The Alentejo region of Portugal is known for a high concentration of Neolithic-aged megalithic monuments: tombs (dolmens or antas) and ceremonial features such as standing stones (menhirs) and stone circles (cromleques). Concelltrations of these monuments tend to be found on or near weathered granite terrains. Unloading slabs and remnant corestones appear to be the stones of preference for mega...

Abstract Weathered crystalline-rock aquifers underlie around 40% of sub-Saharan Africa providing water supplies for half its rural population; they are also prevalent across the tropics. The hydrogeology these is complex and better understanding controls to aquifer transmissivity, alongside accurate borehole siting appropriate design, pivotal long-term performance sustainability services in man...

Affected by dip angle and thickness of strata the tunneling method, soft rock tunnel has obvious characteristics large deformation, long deformation time difficult support. Based on a case study Gelong failure mechanism surrounding rock, stress supporting structural control method section highway passing through strong-medium weathered carbonaceous slate stratum are studied. This paper proposed...

Shrubs, encompassing important ecosystem engineers in dryland environments, have experienced mass mortality due to long-term droughts across the northwestern Israeli Negev. This massive die-back, which has particularly affected predominant shrub species Noaea mucronata, predominates edaphically homogeneous (low geodiversity) hillslopes, and is minor heterogeneous (high hillslopes. While hillslo...

Introduction: Careful characterization of terrestrial concretions and Mars “blueberries” yields important criteria for distinguishing their diagenetic origin in comparison to other models for small, spherical forms. The Jurassic Navajo Sandstone in the Grand Staircase Escalante National Monument (GSENM), southern Utah, contains many hydrous ferric oxide mineralization geometries (HFO phases inc...