The geographic distribution of strontium isotopes in Danish surface waters – A base for provenance studies in archaeology, hydrology and agriculture

2011 ◽  
Vol 26 (3) ◽  
pp. 326-340 ◽  
Author(s):  
Karin M. Frei ◽  
Robert Frei
Author(s):  
Anja B. Frank ◽  
Robert Frei ◽  
Ioanna Moutafi ◽  
Sofia Voutsaki ◽  
Raphaël Orgeolet ◽  
...  

2019 ◽  
Vol 5 (3) ◽  
pp. eaav8083 ◽  
Author(s):  
Erik Thomsen ◽  
Rasmus Andreasen

The application of87Sr/86Sr in prehistoric mobility studies requires accurate strontium reference maps. These are often based from present-day surface waters. However, the use of agricultural lime in low to noncalcareous soils can substantially change the87Sr/86Sr compositions of surface waters. Water unaffected by agriculture in western Denmark has an average87Sr/86Sr ratio of 0.7124 as compared to an average of 0.7097 in water from nearby farmland. The87Sr/86Sr ratio obtained from samples over 1.5 km along a stream, which originates in a forest and flows through lime-treated farmland, decreased from 0.7131 to 0.7099. Thus,87Sr/86Sr-based mobility and provenance studies in regions with low to noncalcareous soils should be reassessed. For example, reinterpreting the iconic Bronze Age women at Egtved and Skrydstrup using values unaffected by agricultural lime indicates that it is most plausible that these individuals originated close to their burial sites and not far abroad as previously suggested.


2015 ◽  
Vol 149 ◽  
pp. 32-45 ◽  
Author(s):  
Sean R. Brennan ◽  
Diego P. Fernandez ◽  
Christian E. Zimmerman ◽  
Thure E. Cerling ◽  
Randy J. Brown ◽  
...  

2017 ◽  
Author(s):  
Virginie Renson ◽  
◽  
Hector Neff ◽  
David Cheetham ◽  
Jeffrey Blomster ◽  
...  

1985 ◽  
Vol 6 (2) ◽  
pp. 52-58 ◽  
Author(s):  
Susan T. Bagley

AbstractThe genus Klebsiella is seemingly ubiquitous in terms of its habitat associations. Klebsiella is a common opportunistic pathogen for humans and other animals, as well as being resident or transient flora (particularly in the gastrointestinal tract). Other habitats include sewage, drinking water, soils, surface waters, industrial effluents, and vegetation. Until recently, almost all these Klebsiella have been identified as one species, ie, K. pneumoniae. However, phenotypic and genotypic studies have shown that “K. pneumoniae” actually consists of at least four species, all with distinct characteristics and habitats. General habitat associations of Klebsiella species are as follows: K. pneumoniae—humans, animals, sewage, and polluted waters and soils; K. oxytoca—frequent association with most habitats; K. terrigena— unpolluted surface waters and soils, drinking water, and vegetation; K. planticola—sewage, polluted surface waters, soils, and vegetation; and K. ozaenae/K. rhinoscleromatis—infrequently detected (primarily with humans).


Author(s):  
James S. Webber

INTRODUCTION“Acid rain” and “acid deposition” are terms no longer confined to the lexicon of atmospheric scientists and 1imnologists. Public awareness of and concern over this phenomenon, particularly as it affects acid-sensitive regions of North America, have increased dramatically in the last five years. Temperate ecosystems are suffering from decreased pH caused by acid deposition. Human health may be directly affected by respirable sulfates and by the increased solubility of toxic trace metals in acidified waters. Even man's monuments are deteriorating as airborne acids etch metal and stone features.Sulfates account for about two thirds of airborne acids with wet and dry deposition contributing equally to acids reaching surface waters or ground. The industrial Midwest is widely assumed to be the source of most sulfates reaching the acid-sensitive Northeast since S02 emitted as a byproduct of coal combustion in the Midwest dwarfs S02 emitted from all sources in the Northeast.


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