Modern fluvial deposits can be affected by early diagenetic element mobilization at redox boundaries between oxygenated, and oxygen free zones near the groundwater level. The visible product of transformation Fe is sediment colour. Distinct red black layers have been studied in eight shallow (<4.2 m depth) sections floodplain Morava River, Czechia. aim was to investigate composition, origin, ra...

Ramanathapuram is a drought-prone southern Indian district that was selected for conducting hydrogeochemical study. Groundwater samples from 40 locations were collected during January 2020 (pandemic interdiction according to COVID) and 2021. The properties of the groundwater evaluated compared with drinking water regulations assess their quality. order cation dominance as follows: Na+ &gt; Ca2+...

First posted May 17, 2022 For additional information, contact: Director, WMA- Laboratory & Analytical Services DivisionU.S. Geological SurveyUSGS Headquarters12201 Sunrise Valley DriveReston, VA 20192 A cooperative study between the National Park Service (NPS) and U.S. Survey (USGS) characterized groundwater quality hydrogeology in parts of Pinnacles Park. The water-quality investigation assess...

Abstract The present study focused on pollution status of groundwater in the industrial areas Challawa and Sharada Kano city based indices, statistical spatial analyses. Twenty samples representing studied (Ten from each area) were analyzed for presence Cd, Cr, Ni, Fe, Mn Zn using atomic absorption spectrophotometer. result showed 95%, 5%, 60%, 15% 25% water had detectable above drinking limits...

We examined the use of dC, TOC and C/N geochemistry of sedimentary organic matter to reconstruct former sea levels and paleoenvironments in the absence of suitable microfossil data. The modern distribution of dC, TOC and C/N of 33 vegetation and 74 surface sediment samples collected from four coastal wetlands in the Thames Estuary and Norfolk, UK are described. The dC, TOC and C/N geochemistry ...

We investigated the impacts of leachates from a swine carcass burial site and a cow manure heap on the geochemical and microbiological properties of agricultural water samples, including leachate, groundwater from monitoring wells and background wells, and stream water. The leachate from the livestock burial site showed extremely high electrical conductivity, turbidity, and major ion concentrat...

Coastal wetlands are an important hotspot for nutrient cycling and transport from the land to ocean. Silicon (Si) as a vital biogenic element affects plant growth health of coastal ecosystems. The understanding key factors processes controlling dissolved silicate (DSi) exchange between water has been limited due lack measured data. We carried out intensive investigations time-series DSi concent...

Dongying’s Paleogene geothermal resources are an important part of the Tianjin coastal region. The extent fluid and supply relationship have become increasingly important, will determine whether demand targets can be met. formation in regions is widely distributed to east Cangdong fracture, but it absent west fracture. On basis introducing geological characteristics depositional Dongying format...