Results 111 to 120 of about 4,715 (162)

Primordial neon and the deep mantle origin of kimberlites. [PDF]

Nat Commun
Giuliani A, Kurz MD, Barry PH, Curtice JM, Stuart FM, Oesch S, Charbonnier Q, Peters BJ, Koornneef JM, Szilas K, Pearson DG.   +10 more
europepmc   +1 more source

High- and ultrahigh-spatial-resolution geochronology. [PDF]

Natl Sci Rev
Li QL, Wang H.
europepmc   +1 more source

Optimizing Cryo-Focused Pyrolysis GC/MS for Tracing Soil Organic Matter Across Diverse Ecosystems. [PDF]

Environ Sci Technol
Shahriar A, Zavarin M, Nuccio EE, Grant KE, McFarlane KJ, Pett-Ridge J, Toews D, Sexton JP, Ryals R, Baccei J, Berndt AJ, Boiteau R, Jawad IA, Yang Y, Bansal S, O'Loughlin EJ, Kemner KM, Matamala R, Morrison KD.   +18 more
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Analysis of Mo Isotopes Originating from the Reactor Core of the Fukushima Daiichi Nuclear Power Station Using Extraction Chromatographic Separation and ICP-MS/MS Measurement with an Oxygen Dynamic Reaction. [PDF]

ACS Omega
Shimada A, Iida Y, Maruyama Y.
europepmc   +1 more source

Incipient continent formation by shallow melting of an altered mafic protocrust. [PDF]

Nat Commun
Hartnady MIH, Schorn S, Johnson TE, Zametzer A, Schmitt AK, Ribeiro BV, Hugh Smithies R, Barham M, Kirkland CL.   +8 more
europepmc   +1 more source

Effects of acute high-intensity exercise on heart rate variability following rapid weight loss in elite wrestlers. [PDF]

Sci Rep
Yıldırım Y, Arabacı R, Rodoplu C, Güngör AK, Yáñez-Sepúlveda R, Cortés-Roco G, López-Gil JF, Martínez-Rodríguez A.   +7 more
europepmc   +1 more source

The mantle source of REE-rich alkaline silicate magmas can be enriched by continent-derived sediment subduction. [PDF]

Nat Commun
Qiu KF, Long ZY, Romer RL, Halama R, Williams-Jones AE, Yu HC, Li SS, Wu MQ, Deng J.   +8 more
europepmc   +1 more source

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The Hf isotopic composition of zircon reference material 91500

Chemical Geology, 2008
Abstract Ten new single zircon fragments, analyzed by solution chemistry and MC-ICP-MS, of the 91500 zircon standard show no evidence to support a recent claim based on in situ data that this reference material is heterogeneous in terms of its radiogenic Hf isotope composition and as a consequence should be abandoned as a reliable interlaboratory ...
Blichert-Toft, Janne, Albarède, Francis
openaire   +3 more sources

The Hf isotope composition of global seawater and the evolution of Hf isotopes in the deep Pacific Ocean from Fe-Mn crusts

Chemical Geology, 2001
This paper presents a revised chemical purification method of Hf for the measurement of Hf isotope ratios of Fe–Mn crusts on a new generation of double focusing multiple collector plasma source mass spectrometer (MC-ICP-MS). By measuring surface scrapings of hydrogenetic Fe–Mn crusts distributed over the three major ocean basins, the present-day Hf ...
K David, M Frank, R.K O'Nions, N.S Belshaw, J.W Arden   +4 more
openaire   +3 more sources

Hf isotope compositions of komatiites

Earth and Planetary Science Letters, 1999
Abstract Many of the oldest ∼3.5 Ga komatiites have low Al2O3/TiO2 and depleted HREE, features that are attributed to garnet fractionation at some stage during their formation. It is not known, however, whether this fractionation took place at the time of melting, or well before, perhaps during the crystallization of an early magma ocean.
Janne Blichert-Toft, Nicholas T. Arndt
openaire   +1 more source