Results 241 to 250 of about 107,558 (336)

A Common Reference Material for Mass‐Dependent Sn Isotope Compositions: An Inter‐Laboratory Calibration Approach

Geostandards and Geoanalytical Research, EarlyView.
Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister, Manuela A. Fehr, Quentin Amet, Gerhard Brügmann, Caroline Fitoussi, Matthias Friebel, Weiqiang Li, Frederic Moynier, Jia‐Xin She, Xueying Wang, Maria Schönbächler   +10 more
wiley   +1 more source

Factors determining nutrient distribution in sediments and porewater in a semi-confined coastal environment subject to anthropogenic pressure. [PDF]

Environ Monit Assess
de Pontes GC, Schmidt S, de Carvalho Vicente M, Guimarães TC, Machado WTV, Wasserman JC.   +5 more
europepmc   +1 more source

Organic geochemistry division

Geochimica et Cosmochimica Acta, 1993
openaire   +1 more source

Organic geochemistry of submarine canyons: The Portuguese Margin

, 2011
Kostas Kiriakoulakis, Sabena Blackbird, Jeroen Ingels, Ann Vanreusel, George A. Wolff   +4 more
openalex   +2 more sources

Dechlorination of mixed chlorinated organophosphate esters (V6 and TCEP) and associated reductive dehalogenase gene expression by <i>Dehalococcoides mccartyi</i>. [PDF]

Appl Environ Microbiol
Yang S, Wu J, Yang Q, Deng Y, Wang H, Li D, Yang L, Song J, Zhong Y, Peng P.   +9 more
europepmc   +1 more source

Abstract: Organic Geochemistry, a Powerful Technology, Applied to Characterization and Identification of Oil Spills&nbsp;

, 1998
Silvana Maria Barbanti
openalex   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

Geochemical distribution and genesis of selenium-rich soils in Maojie Town on the Yunnan low-selenium belt. [PDF]

Sci Rep
Dong C, Li Z, Hou Z, Chen W, Zhang Y, Ba Y.   +5 more
europepmc   +1 more source

The effect of early diagenetic processes on the quantification of fossil micrometeorite abundance and flux in the geological record

Meteoritics &Planetary Science, EarlyView.
Abstract Fossil micrometeorites (MMs) recovered from lithified sedimentary rocks, particularly iron‐rich (I‐type) cosmic spherules (CSs) provide valuable insights into past dust‐forming events. Their abundances, when combined with estimates of local sedimentation rates can be used to reconstruct the flux of extraterrestrial dust.
Isabelle S. Mattia, Matthew J. Genge, Martin D. Suttle   +2 more
wiley   +1 more source

Cooling-induced intensification of ocean anoxia in the mid-Paleozoic. [PDF]

Sci Adv
Wang Y, Wignall PB, Mills BJW, Dickson AJ, Loydell DK, Xiong Y, Xu Z, Peakall J, Poulton SW.   +8 more
europepmc   +1 more source