نتایج جستجو برای: hypersaline lake
تعداد نتایج: 43310 فیلتر نتایج به سال:
Significant concentrations of oxalate (dissolved plus particulate) were present in sediments taken from a diversity of aquatic environments, ranging from 0.1 to 0.7 mmol/liter of sediment. These included pelagic and littoral sediments from two freshwater lakes (Searsville Lake, Calif., and Lake Tahoe, Calif.), a hypersaline, meromictic, alkaline lake (Big Soda Lake, Nev.), and a South San Franc...
Hypersaline ecosystems—aquatic environments where concentration of salt exceeds 35 g L−1—host microbial communities that are highly specialised to cope with these extreme conditions. However, our knowledge on the taxonomic diversity and functional metabolisms characterising in water columns hypersaline ecosystems is still limited, this may compromise future preservation unique environments. DNA...
Changes in sedimentary profiles and stratigraphic architecture over time lake basins are shown to be relevant markers of climate changes terrestrial palaeoenvironments. The the Priabonian (late Eocene)–early Rupelian (early Oligocene) Alès–Saint-Chaptes–Issirac saline system has been reconstructed from sedimentological, biostratigraphic magnetostratigraphic analysis outcrops well cores. As a fu...
Microbialites are widespread in modern and fossil hypersaline environments, where they provide a unique sedimentary archive. Authigenic mineral precipitation in modern microbialites results from a complex interplay between microbial metabolisms, organic matrices and environmental parameters. Here, we combined mineralogical and microscopic analyses with measurements of metabolic activity in orde...
The paper presents the findings of studying influence main natural environmental factors on interannual (2017–2018, 2020–2021) and seasonal (from April to October) dynamics Artemia population from large hypersaline lake Kuchukskoye located in Kulunda steppe (Altai Krai, Russia). We studied relationship 7 key indicators structure (abundance, biomass age structure) with hydrophysical hydrochemica...
The late Miocene Messinian salinity crisis was an evaporitic episode that occurred throughout the Mediterranean; it concluded with a transition from hypersaline to fresher-water “lake sea” (Lago Mare) conditions prior Pliocene. Whereas numerous researchers propose Lago Mare sediments accumulated in Mediterranean-wide lake filled Paratethyan waters, other workers reject this hypothesis. Here, te...
<p>This study has been monitored for five years by Sentinel-2 satellite images, at different seasons of the year, fluctuations in water level Gallocanta Lake (between provinces Teruel and Zaragoza, Spain) considered a hypersaline endorheic wetland, which characteristics that make it unique geographical area is located, as well operation system. Rainfall wide variation giving maximums moth...
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