The specific source of ancient sedimentary manganese (Mn) deposits is commonly complex. Here we use systematic major and trace element data with strontium (Sr) neodymium (Nd) isotopic analyses the Ortokarnash Mn(II) carbonate ores associated rocks from Upper Carboniferous Kalaatehe Formation (ca. 320 Ma) in order to constrain Mn source. This formation consists three members: first member a volc...

Calculating the factor of safety (FS) as slope stability is necessary to prevent environmental damage. Therefore, this paper aims (i) calculate FS using limit equilibrium approaches and Slide software (ii) investigate slopes according calculated (Janbu Bishop methods) status different sites in study area (Hyrcanian forest Iran). Six landslides were selected along road by a field survey. Landsli...

The results of integrate biostratigraphic study Upper Jurassic deposits the clay pit near village Valy (Syzran district, Samara region) are presented. For first time a bed-by-bed description was made and subdivision section into zones, subzones biohorizons by ammonites established. Bauhini Kitchini zones (Bayi subzone) established in Lower Kimeridgian, while Kimmeridgian is represented Autissio...

Abstract Western Tethys sedimentary successions constitute fundamental archives of Late Triassic–Early Jurassic environmental, carbonate production and tectonic changes. During the Triassic, Northern Calcareous Alps (Austria) belonged to passive margin, characterised by deposition early-dolomitized peritidal Hauptdolomit (Norian) adjacent basinward Dachstein shelf passing upward mixed carbonate...

A physical property of a shale gas reservoir affects content, then restricts the resource potential. In this paper, lithofacies and spatial distribution southern margin Junggar Basin in Xinjiang Province are identified occurrence strata, properties studied. Based on adsorption potential theory, surface free energy all sample is discussed. The conclusions as follows. (1) All samples can be divid...

This work provides the first evidence of seismites within Miocene gypsum microbialites deposited in inland lakes. Seismites are observed on good quality outcrops two separated successions Madrid and Duero basins (central Spain) that sited nearby strike-slip faults. The consist sandy facies interbedded with gypsiferous mudstone marlstone. association microbial induced sedimentary structures (MIS...

Basal interaction beneath frontally-emergent mass-transport deposits has been widely documented in seismic data, but its effect on deposit heterogeneity not convincingly calibrated at outcrop. Several blocky occur as part of the Late Eocene Ventimiglia Flysch north-west Italy, comprising slope-derived marlstones, representing original slide, and turbidite material, entrained after erosion subst...

The Lower Cretaceous Tuxen (lower Hauterivian – upper Barremian) and Sola (upper Barremian Albian) Formations in the Danish Central Graben (North Sea) constitute one of oldest chalk successions recorded globally, but have received little attention with regards to sedimentary facies depositional processes. This study presents first comprehensive carbonate analysis succession, retrieved from seve...

Along the Hikurangi Subduction Margin, accretionary prism uplift has exposed Hungaroa fault zone, an inactive thrust developed within Middle to Late Eocene Wanstead Formation. Within ~33 m-wide core, deformation of smectitic, calcareous mudstone matrix produced a penetrative foliation that locally wraps around clasts. Deformation occurred at temperatures constrained by syntectonic calcite vein ...