Results 131 to 140 of about 888,623 (212)

Extremely cold ocean temperatures in iron formation brine pools of snowball Earth. [PDF]

Nat Commun
Lu K, Feng L, Mitchell RN, Lechte MA, Hoffman PF.   +4 more
europepmc   +1 more source

Enhanced erosion by continental arc volcanism as a driver of the Cambrian Explosion. [PDF]

Nat Commun
Wu Y, Tian H, Fan H, Pogge von Strandmann PAE, Zhao W, Li J, Sun H, Gu H, Lu C, Liu X, Li T, Ji S, Peng P.   +12 more
europepmc   +1 more source

Ancient storage of anomalous mercury isotope signatures in the Earth's transition zone. [PDF]

Nat Commun
Xu R, Yin R, White WM, Bizimis M, Cai Y, Zhang J, Chen C, Tian Z, Ruan T, Li Y, Zhang G, Liu L, Bai Z, Zhou M, Liu Y.   +14 more
europepmc   +1 more source

The North-Eastern Europe and Northern Asia isotopic dataset of bioarchaeological samples (NEENA). [PDF]

Sci Data
Haponava V, Pickard C, Fernandes R.
europepmc   +1 more source

Ecology and demographic structure of an extinct ibex population in late Upper Palaeolithic Italian Alps. [PDF]

Sci Rep
Armaroli E, Fontani F, Iacovera R, Cilli E, Latorre A, Luiselli D, Silvestrini S, Terlato G, Dalmeri G, Fontana A, Nannini N, Vonhof H, Calcagnile L, Quarta G, Duches R, Bortolini E, Cipriani A, Benazzi S, Lugli F, Romandini M.   +19 more
europepmc   +1 more source

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The Sr isotope composition of the world ocean, marginal and inland seas: Implications for the Sr isotope stratigraphy

Stratigraphy and Geological Correlation, 2012
We studied the Sr isotope composition of shells of modern shallow-water mollusks and coral fragments. Twenty five of the studied samples were collected in beach zones of open oceans and marginal seas; twelve and eight additional samples are from saline and freshened inland seas respectively. The 87Sr/86Sr ratio in samples from the Atlantic, Indian, and
A. B. Kuznetsov, M. A. Semikhatov, I. M. Gorokhov   +2 more
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Sr isotope measurements in beef—analytical challenge and first results

Analytical and Bioanalytical Chemistry, 2012
The strontium isotope ratio ((87)Sr/(86)Sr) in beef, derived from 206 European cattle, has been measured. These cattle were located in 12 different European regions within France, Germany, Greece, Ireland, Italy, Spain and the UK. As animal protein is known to be a difficult material on which to conduct Sr isotope analysis, several investigations were ...
Rummel, S., Dekant, C. H., Hölzl, S., Kelly, S. d., Baxter, M., Marigheto, N., Quetel, C. R., Larcher, Roberto, Nicolini, Giorgio, Fröschl, H., Ueckermann, H., Hoogewerff, J.   +11 more
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Sr Isotopes in Seawater

2022
Studies of Sr isotopic composition of thousands of samples of marine sediments and fossils have yielded a curve of 87Sr/86Sr versus age for seawater Sr that extends back to 1 billion years. The ratio has fluctuated with large amplitude during this time period, and because the ratio is always uniform in the oceans globally at any one time, it is useful ...
B. Lynn Ingram, Donald J. DePaolo
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New insights into the Sr isotope budget from stable-Sr isotope fractionation in gypsum

2023
The geochemical cycle of strontium (Sr) is closely tied to the long-term inorganic cycle of carbon since the budgets of both elements are controlled by similar natural processes such as volcanism, continental weathering, and carbonates precipitation.
Yana Kirichenko, Jörg D. Rickli, Tomaso R.R. Bontognali, Netta Shalev   +3 more
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Plant Sr Isotope Ratios As Affected by the Sr Isotope Ratio of the Soil and of the External Sr Inputs

Journal of Agricultural and Food Chemistry, 2018
The 87Sr/86Sr ratio of a produce is generally linked with the soil geological features of the growing areas. This study aimed at assessing to which extent the addition of external Sr by agricultural practices, like irrigation and mineral nutrient supply, influences this relationship.
Agnese Aguzzoni, Michele Bassi, Peter Robatscher, Massimo Tagliavini, Werner Tirler, Francesca Scandellari   +5 more
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