Abstract The derivation of geomechanical properties from petrophysical/geophysical data is not only great importance in the oil industry but also mining, geothermal projects and tunnelling, for reduction costs to improve security. For sector, it mainly important drilling rate stability borehole and, as a result, economic factor. A key issue that properties, which can support better planning pro...

In this article, we for the first time fully describe geology and petrography of iron quartzite formation, localized in Southeast Guinea Simandou mountain range. region, a meridional distribution belt banded magnetite quartzites (itabirite) Lower Proterozoic metamorphic series has been mapped. The rocks form an extended (210 km) narrow (0.4-7 complex synclinal structure background Archean grani...

In Ganzhou City, China, a complex bedrock lithology and structure, diverse topography, frequent engineering works, abundant rainfall generate frequent, sudden, small-scale landslides that are difficult to prevent control. This study integrates evidence data from field investigation of with geological-engineering analogues document the distribution development these geohazards in City. Based on ...

Elevated As occurs in many meta-sedimentary bedrock aquifers where elevated bulk-rock As content is one of the primary controls on the concentration of As in groundwater. This study was designed to determine As concentrations in a black shale, black slate and black phyllite sequence that comprises the bedrock aquifer system of the Taconic Mountain region of southwestern Vermont and adjacent New...

Triassic eclogite and blueschist facies rocks occur as a thrust sheet, 25-km long and over 2-km thick, in an Eocene fold-andthrust belt in northwest Turkey along the İzmir–Ankara suture. The thrust sheet consists mainly of metabasites with minor marble, phyllite and metachert, and rare lenses of serpentinite. The common blueschist facies mineral assemblage in the metabasites is sodic amphibole ...