Riparian seeps have been recognized for their contributions to stream flow in headwater catchments, but there is limited data on how seeps affect stream water quality. The objective of this study was to examine the effect of seeps on the variability of stream NO3-N concentrations in FD36 and RS, two agricultural catchments in Pennsylvania. Stream samples were collected at 10-m intervals over re...

Methane released from seafloor seeps contributes to a number of benthic, water column, and atmospheric processes. At within the methane hydrate stability zone, crystalline gas shells can form on bubbles while are still in contact with or as begin ascending through column. These reduce dissolution rates, allowing hydrate-coated deliver shallower depths column than hydrate-free bubbles. Here, we ...

The magnitude and variability in methane (CH4) emissions from lakes are uncertain due to limitations in methods for quantifying the patchiness of ebullition (bubbling). We present a field method to estimate an important and highly uncertain source: ebullition from northern lakes. We defined four classes of CH4 bubble clusters trapped in lake ice representing distinct types of biogenic ebullitio...

The effect of methane seepage from sediments harbouring shallow gas hydrates on standing stocks and the distribution pattern of meiobenthic organisms, in particular Nematoda and Rotifera, was studied at about 800 m water depth at Hydrate Ridge, Cascadia subduction zone, off Oregon. The presence of shallow gas hydrates, buried only a few 10s of centimetres below the sediment surface, was indicat...

-Renewable energy has become the prime source of clean and pure form of energy. With the prevailing energy crisis non-conventional energy has become the solution to it. Harnessing wind energy by several wind turbines is commonly done using various types of rotors. But nowadays Seep twist adaptive rotor blades are used to increase annual energy capture of baseline turbine by 5%-10% without excee...

• absorb any blood, other bodily or external fluids or other material that may seep into the back of the patient’s throat and enter the oesophagus or lungs during surgery in the mouth (oral surgery) • to seal the area around the tracheal tube during provision of general anaesthesia and the surgical procedure, and thus prevent leakage of gases • stabilise the tracheal tube or a supraglottic airw...

Abstract Methane seeps host rich biotic communities, forming patchy yet highly productive ecosystems across the global ocean. Persistent hydrocarbon emissions fuel chemosynthetic food webs at seeps. were abundant in Western Interior Seaway of North America during Late Cretaceous. This area also experienced intermittent ash falls, which negatively impacted marine fauna. We propose that methane a...

Abstract The origin, migration pathways, as well the influence of secondary processes oil and natural gas accumulated in lower Cretaceous to Miocene strata western part Polish Outer Carpathians (between Kraków Pilzno towns) based on results organic geochemical analyses are investigated this paper. Oil thermogenic hydrocarbon gases were generated mainly from type II kerogen, III kerogen mixed va...