Incidences of non-deposition or erosion at the modern seabed and hiatuses within the pelagic caps of guyots and seamounts are evaluated along with paleo-temperature and physiographic information to speculate on the character of Late Cenozoic internal tidal

With the development of industrialization, soils around world have been polluted by heavy metals and oil to different degrees in recent years, soil remediation has become a global problem. Phytoremediation wide application prospect because its environmental friendliness easy availability materials. Objective To explore effects types root exudates on removal cadmium petroleum hydrocarbon soils. ...

The Early Cretaceous Greater Ontong Java Event in the Pacific Ocean may have covered ca. 1% of the Earth's surface with volcanism. It has puzzled scientists trying to explain its origin by several mechanisms possible on Earth, leading others to propose an extraterrestrial trigger to explain this event. A large oceanic extraterrestrial impact causing such voluminous volcanism may have traces of ...

The migration characteristics of carbon nanotubes from liquid phase to vapor phase in the refrigerant-based nanofluid pool boiling were investigated experimentally. Four types of carbon nanotubes with the outside diameters from 15 to 80 nm and the lengths from 1.5 to 10 μm were used in the experiments. The refrigerants include R113, R141b and n-pentane. The oil concentration is from 0 to 10 wt....

Abstract Sedimentary rocks of the Paradox Basin Colorado Plateau (southwestern USA) record widespread manifestations paleo–fluid flow and fluid-rock reactions including Cu, U-V, Fe-Mn mineral deposits, Si Ca metasomatism, hydrocarbon accumulations, bleached sandstones. Many these are spatially associated with faults. Here we show evidence for a phase fault-related fluid migration mineralization...

Abstract Based on the accumulation situation of anti-spatter spray in actual manufacturing, butt joints are implemented to analyze state changes two types and their effect arc stability, molten pool fluidity, weld performance. The results show that fluidity water-based is significantly better than oil-based welding process, resulting a large near suppression position. This causes strong fluctua...

rents; (4) specific water masses; (5) conditions of preservation; (6) presence and strength of upwelling onto shelves and under boundary currents; (7) eutrophic conditions; and (8) tectonic events (isolating radiolarian populations). These biologic indicators and their related forms are useful in determining similar parameters in the fossil record. Studies of radiolarians from Neogene Deep Sea ...

There has been a surge of paleo-climatic/environmental studies of Northwestern China (NW China), a region characterized by a diverse assortment of hydro-climatic systems. Their common approach, however, focuses on "deducing regional resemblance" rather than "exploring regional variance." To date, efforts to produce a quantitative assessment of long-term intra-regional precipitation variability ...