This paper is devoted to the study of Thermo-Hydro-Mechanical (THM) responses a porous rock with low permeability under thermal loading in context deep geological disposal radioactive waste. To this aim, numerical simulations benchmark exercise hypothetical high-level waste (HLW) repository were performed. considered as host formation Callovo-Oxfordian claystone (COx), which has been selected f...

Mud volcanism was initiated when overpressured muds rose through the Mediterranean Ridge accretionary prism. Early mud volcanism was marked by eruption of coarse clastic sediments forming small cones of debris flow deposits and turbidites, followed by eruption of large volumes of clast-rich matrix-supported debris flows. Eruption was accompanied by progressive subsidence to form moat-like featu...

Deep geological repository is the preferred solution in many countries to manage radioactive wastes, such as France where Callovo-Oxfordian (COx) claystone candidate host rock. In clay rock formation, drilling of storage gallery creates an Excavation Damaged Zone (EDZ) with altered flow properties short term, while corrosion processes release large amounts gas long term. Assessing evolution pre...

Abstract Mount Pandan is an active volcano with geothermal phenomena and located in tectonically East Java, Indonesia. We conducted a geomagnetic study around to obtain further information about fault structures prospects. established 245 observation stations covering area of 20 km 2 . calculated the magnetic anomalies, applied upward continuation reduction pole, improved normalized horizontal ...

The Aptian Crato Formation is world renowned for its well-preserved fossils in microbially-induced laminated limestones, which are regarded as one of the main Cretaceous Konservat-Lagerstätte geological record. Detailed stratigraphic investigation and mapping up to 90-m-thick at eastern border Araripe Plateau allowed recognition a regionally persistent fossil-bearing muddy interval, herein defi...

Acid mine drainage is an environmental issue impairing water sources globally. Efficient and continuous treatment in mining regions urgently required. Therefore, this research aimed to evaluate the use of claystone from coal overburden, zeolite, activated carbon coconut shell as a composite remove Fe Mn acid drainage. XRD, BET, SEM characterized adsorbent. The X-Ray Diffraction analysis showed ...

Outcrop samples were collected from Dukku area for the purpose of subjecting them to palynological analysis in order determine relative age Gwandu Formation and palaeoenvironment deposition deposit. Field laboratory methods carried out obtain lithological sequence description outcrop. The obtained went through processes acid digestion with hydrochloric acid, hydrofluoric separation macerals by ...

The end of the Palaeozoic is marked by two mass-extinction events during the Middle Permian (Capitanian) and the Late Permian (Changhsingian). Given similarities between the two events in geochemical signatures, such as large magnitude negative dC anomalies, sedimentological signatures such as claystone breccias, and the approximate contemporaneous emplacement of large igneous provinces, many a...

Abstract Both igneous and sedimentary rocks affected by water–rock interaction commonly form rhythmic Fe‐oxide bands that provide information on palaeo‐groundwater. This study investigated the formation of banded patterns concentrically concretions from Jurassic Navajo Sandstone (United States) claystone ‘zebra rock’ Neoproterozoic Johnny Cake Shale Member (Western Australia). Micro‐X‐ray fluor...

Sistem penambangan batubara di Tambang Banko Pit 1 Utara adalah strip mining dengan sistem shovel-dump truck. Jenis material terdiri dari top soil, claystone, siltstone strength 0,2 – 3 Mpa dan sebagian perlu diledakkan. Untuk menunjang kinerja excavator dilakukan pemberaian overburden terlebih dahulu menggunakan ripper Komatsu D375A-5. Berdasarkan nilai kuat tekan (strength) material, spesifik...