Atmospheric carbon dioxide (CO2) data for the last 420 million years (My) show long-term fluctuations related to supercontinent cycles as well as shorter cycles at 26 to 32 My whose origin is unknown. Periodicities of 26 to 30 My occur in diverse geological phenomena including mass extinctions, flood basalt volcanism, ocean anoxic events, deposition of massive evaporites, sequence boundaries, a...

Again this year, abstracts from the annual Atlantic Universities Geological Conference (AUGC) are published in Atlantic Geology. This provides a permanent record of the abstracts, and also focuses attention on the excellent quality of the presentations and posters and the interesting and varied geoscience that they cover. The abstracts are published with fi nancial assistance from APICS. THE ED...

The study presents geologic investigation of Yemen and the Gulf Aden with a special focus on geophysical, seismic, tectonic topographic mapping performed by integrated approach QGIS GMT scripting. Cartographic visualization is crucial in analysis, data processing prognosis mineral resource prospects. region was formed as result Arabian African plates movements still tectonically active. Besides...

Geological Disposal Facilities (GDF) for radioactive waste will generally rely on clay-rich materials as a host geological formation and/or engineered barrier. Gas be produced within the GDF, which can build up significant gas pressure and activate migration of through clay via different transport mechanisms. These mechanisms are usually investigated in laboratory tests small samples few centim...

introduction suitability of groundwater for drinking, irrigation and industrial purposes depends upon its quality. changes in groundwater quality are due to variation in climatic conditions, residence time of water with aquifer materials and inputs from soil during percolation of water. multivariate statistical methods are one of the common and important methods for hydro geochemistry study. sa...

Hazard analysts and risk managers of natural perils, such as earthquakes, landslides and floods, need to access information from sensor networks surveying their regions of interest. However, currently information about these networks is difficult to obtain and is available in varying formats, thereby restricting accesses and consequently possibly leading to decision-making based on limited info...

Integrating geological concepts, such as relative positions and proportions of the different lithofacies, is of highest importance in order to render realistic geological patterns. The truncated plurigaussian simulation method provides a way of using both local and conceptual geological information to infer the distributions of the facies and then those of hydraulic parameters. The method (Le L...

The Snowy Mountains Hydro-electric Authority has recently undertaken a program of analysing the routine maintenance completed on its main generation and hydraulic assets. Power industry deregulation and increasing competition have created the need to reduce costs while increasing productivity. Along with downsizing and organisational restructuring, considerable effort has been placed on improvi...