Monoclinic pyrrhotite (Fe7S8) is widely claimed to carry magnetizations acquired during early diagenesis in anoxic sedimentary environments. In contrast, geochemical literature indicates that pyrrhotite formation is extremely slow below 180 8C, which makes it a highly unlikely carrier of early diagenetic remanences in sediments. This view is confirmed by the occurrence of late diagenetic Fe7S8 ...

Abstract The offshore Cuu Long (CLB) and Nam Con Son (NCSB) basins of SE Vietnam are two important Cenozoic hydrocarbon-bearing in the southern South China Sea (SCS), which can contribute to understanding evolution major Asian river systems, particular Mekong River. Oligocene Early Miocene basin fill Basin is dominated by sediment sourced locally from Da Lat Zone basement on land. Sandstones ha...

Abstract Chlorite is recognized worldwide as a key mineral that inhibits the development of quartz cement in deeply buried sandstone reservoirs. Iron-rich chlorite mainly formed by transformation precursor clay mineral; however, few studies have focused on early stages before crystallization chlorite. This study analyzed shallowly (400–1000 m) coastal sandstones from within Wealden Group Paris ...

Bogor Trough in the West Java are typified by turbidity deposits with source mostly characterized volcanoclastic materials from southern area. The actually receipt sediment both south and continental north. But, discussions of sediments term composition temporal variation rare to be reported, especially This manuscript intends discuss detrital compositional depositional facies Neogene that deli...

As one of the predominant diagenetic products in clastic rocks, calcite cements are typical fingerprints cement-forming fluids and key controls on reservoir quality. The Puig-reig anticline, south-eastern Pyrenees (Spain), exposes excellent outcrops conglomerates, sandstones claystones, which were deposited from a proximal to medial fluvial system underwent folding, fracturing cementation. This...

Abstract During the Tertiary evolution of Western Mediterranean subduction system, a migrating foreland basin system developed between Maghrebian orogenic belt and adjacent African Craton. However, comprehensive reconstruction systems Rif Chain is still missing. By integrating field observations with quantitative biostratigraphic data from calcareous nannofossil assemblages, sandstone compositi...

The present bulk-rock geochemical study aims to answer some questions concerning the distribution and variability of trace elements (TEs) rare earth (REEs) in lower Cambrian–Lower Cretaceous sandstones mudstones NE Gondwana Jordan. proved that REE TE patterns both detrital authigenic, light heavy minerals are controlled principally by source-rock provenance, followed an interplay many factors: ...

The Neoproterozoic evolution of the Jiangnan Orogen is important for understanding tectonic history South China. As a volcanic-sedimentary sequence developed in Nanhua rift, Banxi Group preserves records magmatic and events linked to assembly breakup Rodinia supercontinent. In this study, we report results from whole-rock major- trace-element concentrations, with zircon LA-(MC)-ICP-MS U-Pb ages...