Results 31 to 40 of about 1,647,655 (410)

Hybrid coastal edges in the Neuquén Basin (Allen Formation, Upper Cretaceous, Argentina) [PDF]

open access: yes, 2015
The Allen Formation records the first Ingression Atlantic to the Neuquén Basin during the Late Cretaceous. The definition of lithofacies and facies associations interpretation for stratigraphic sections in Paso Córdoba and Salitral Moreno area, Río ...
Armas, María Paula   +1 more
core   +1 more source

Pollution Assessment and Source Apportionment of Soil Heavy Metals in a Coastal Industrial City, Zhejiang, Southeastern China

open access: yesInternational Journal of Environmental Research and Public Health, 2022
In this research, Ningbo City, a typical industrial city in southeastern China, was selected as the study area, and the concentrations of 12 heavy metals (Cd, Cr, Ni, Pb, Zn, Cu, Hg, As, Co, V, Se, and Mn) were measured at 248 sampling points.
Shiyi Wang   +6 more
semanticscholar   +1 more source

Biogeochemical response of alpine lakes to a recent increase in dust deposition in the Southwestern, US [PDF]

open access: yesBiogeosciences, 2011
The deposition of dust has recently increased significantly over some regions of the western US. Here we explore how changes in dust deposition have affected the biogeochemistry of two alpine watersheds in Colorado, US.
A. P. Ballantyne   +5 more
doaj   +1 more source

Response and Recovery of the Comanche Carbonate Platform Surrounding Multiple Cretaceous Oceanic Anoxic Events, Northern Gulf of Mexico [PDF]

open access: yes, 2015
The ubiquity of carbonate platforms throughout the Cretaceous Period is recognized as a product of high eustatic sea-level and a distinct climatic optimum induced by rapid sea-floor spreading and elevated levels of atmospheric carbon-dioxide.
Da-Gama, Rui O.B.P.   +5 more
core   +1 more source

Tellurium, selenium and cobalt enrichment in Neoproterozoic black shales, Gwna Group, UK : Deep marine trace element enrichment during the Second Great Oxygenation Event [PDF]

open access: yes, 2018
We are grateful to John Still for his skilled technical support and the ACEMAC facility at the University of Aberdeen. Research funded by NERC grant NE/M010953/1 and NERC facility grant IP-1631-0516. AJB is funded by NERC support of the Isotope Community
Armstrong, Joseph   +5 more
core   +2 more sources

Comparison of mercury in atmospheric deposition and in Illinois and USA soils [PDF]

open access: yesHydrology and Earth System Sciences, 2004
It has been reported that most mercury (Hg) in USA soils is from atmospheric Hg deposition, mostly from anthropogenic sources. This paper compares the rates of atmospheric Hg deposition to amounts of Hg in Illinois and USA soils. The amounts of Hg in
E.C. Krug   +3 more
doaj  

Backwater controls of avulsion location on deltas [PDF]

open access: yes, 2012
River delta complexes are built in part through repeated river-channel avulsions, which often occur about a persistent spatial node creating delta lobes that form a fan-like morphology. Predicting the location of avulsions is poorly understood, but it is
Chatanantavet, Phairot   +2 more
core   +2 more sources

The Formation and Geology of the Salt Deposit [PDF]

open access: yesScientific American, 1902
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openaire   +2 more sources

Sedimentología y vertebrados fósiles de la Formación Santa Cruz (Mioceno temprano) en Lago Posadas, suroeste de Patagonia, Argentina [PDF]

open access: yes, 2019
Lago Posadas se ubica al pie de los Andes Patagónicos Australes, en el suroeste de Argentina, donde la Formación Santa Cruz (FSC) del Mioceno temprano muestra afloramientos potentes y lateralmente continuos.
Aramendía, Inés   +3 more
core   +2 more sources

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