A model for the emplacement, bioturbation, and preservation of fine scaled sedimentary strata has been used to evaluate the impact of interacting physical and biological sedimentary processes on preserved sedimentary fabric in three contrasting shelf and estuarine depositional settings: Eckernförde Bay, German Baltic Sea; the Eel Shelf, northern California, USA; and the northern Gulf of Alaska ...

The Euganean Hills of North East Italy have long been recognised as an area characterized by a higher than average natural radiation background. This is due to two main reasons: a) primary lithogenic radiation due to rhyolitic and trachytic outcrops, which are “acidic alkaline” magmatic rocks potentially enriched in uranium and thorium; b) secondary sources related to a geothermal field – widel...

The Euganean Hills of North East Italy have long been recognised as an area characterized by a higher than average natural radiation background. This is due to two main reasons: a) primary lithogenic radiation due to rhyolitic and trachytic outcrops, which are "acidic alkaline" magmatic rocks potentially enriched in uranium and thorium; b) secondary sources related to a geothermal field - widel...

The Paleo-Asian Ocean controlled the tectonic evolution of Northeast Asia and formed Karamaili Orogenic Belt in eastern Junggar basin. However, chronological constrain paleo-Karamaili remains unclear. In this study, we focused on sandstones Lower Jurassic Badaowan Sangonghe Formations Dongdaohaizi Depression, basin near orogenic belt. After detailed observations descriptions macroscopic feature...

Abstract Metamorphic devolatilization of subducted slabs generates aqueous fluids that ascend into the mantle wedge, driving partial melting produces arc magmas. These magmas have oxygen fugacities some 10–1,000 times higher than generated at mid-ocean ridges. Whether this oxidized magmatic character is imparted by slab or acquired during ascent and interaction with surrounding crust debated. H...

In order to analyze the main factors controlling shale gas accumulation and predict potential zone for exploration, heterogeneous characteristics of source rock reservoir Wufeng-Longmaxi Formation in Sichuan Basin were discussed detail, based on data petrology, sedimentology, physical properties content. On this basis, effect coupling between generation reservation has been analyzed. The black ...

The Euganean Hills of North East Italy have long been recognised as an area characterized by a higher than average natural radiation background. This is due to two main reasons: a) primary lithogenic radiation due to rhyolitic and trachytic outcrops, which are “acidic alkaline” magmatic rocks potentially enriched in uranium and thorium; b) secondary sources related to a geothermal field – widel...