Results 81 to 90 of about 16,929 (223)

A heterogeneous subcontinental mantle under the African-Arabian Plate boundary revealed by boron and radiogenic isotopes. [PDF]

Sci Rep, 2021
Agostini S, Di Giuseppe P, Manetti P, Doglioni C, Conticelli S.   +4 more
europepmc   +1 more source

Measurement of the radiative neutron capture cross section of 206Pb and its astrophysical implications [PDF]

, 2007
The (n, gamma) cross section of 206Pb has been measured at the CERN n_TOF facility with high resolution in the energy range from 1 eV to 600 keV by using two optimized C6D6 detectors.
A. Couture, A. Ferrari, A. Goverdovski, A. Herrera-Martinez, A. J. Ferguson, A. Lindote, A. Mengoni, A. Pavlik, A. Plompen, A. Plukis, A. Poch, A. Ventura, B. Haas, C. Carrapiço, C. Domingo-Pardo, C. Eleftheriadis, C. Guerrero, C. Lamboudis, C. Massimi, C. Moreau, C. Papachristodoulou, C. Papadopoulos, C. Paradela, C. Pretel, C. Rubbia, C. Stephan, D. Cano-Ott, D. Karadimos, D. Karamanis, D. Villamarin, E. Berthoumieux, E. Chiaveri, E. Gonzalez-Romero, E. Griesmayer, E. Jericha, E. Kossionides, F. Alvarez-Velarde, F. Bečvář, F. Calviño, F. Gramegna, F. Gunsing, F. Käppeler, F. Neves, F. Voss, G. Aerts, G. Badurek, G. Cortes, G. Rudolf, G. Tagliente, G. Vannini, H. Frais-Koelbl, H. Leeb, H. Oberhummer, H. Wendler, H. Álvarez, I. Dillman, I. Duran, I. Goncalves, I. Lopes, I. Savvidis, J. Andrzejewski, J. Cox, J. L. Tain, J. Marganiec, J. Pancin, J. Quesada, J. Salgado, K. Fujii, K. Wisshak, L. Audouin, L. Ferrant, L. Fitzpatrick, L. Perrot, L. Sarchiapone, L. Tassan-Got, L. Tavora, M. C. Vincente, M. Calviani, M. Dahlfors, M. Embid-Segura, M. Heil, M. Igashira, M. Isaev, M. Kerveno, M. Krtička, M. Lozano, M. Mosconi, M. Oshima, M. Rosetti, M. Wiescher, N. Colonna, N. Grevesse, N. Patronis, P. Assimakopoulos, P. Baumann, P. Cennini, P. Koehler, P. M. Milazzo, P. Mastinu, P. Pavlopoulos, P. Rullhusen, P. Vaz, R. Capote, R. Dolfini, R. Ferreira-Marques, R. Gallino, R. Haight, R. Macklin, R. Plag, R. Reifarth, R. Terlizzi, R. Vlastou, S. Andriamonje, S. Bisterzo, S. David, S. F. Mughabghab, S. Lukic, S. Marrone, S. O'Brien, S. Walter, T. Rauscher, U. Abbondanno, V. Chepel, V. Ketlerov, V. Konovalov, V. Vlachoudis, W. Dridi, W. Furman, Y. Kadi   +128 more
core   +4 more sources

Magnesium Isotopes as a Tracer of Crustal Materials in Volcanic Arc Magmas in the Northern Cascade Arc

Frontiers in Earth Science, 2018
Fifteen North Cascade Arc basalts and andesites were analyzed for Mg isotopes to investigate the extent and manner of crustal contributions to this magmatic system.
Aaron W. Brewer, Aaron W. Brewer, Fang-Zhen Teng, Emily Mullen   +3 more
doaj   +1 more source

Radioactive and radiogenic isotope research

Eos, Transactions American Geophysical Union, 1971
The number of laboratories and workers in the field of radioactive isotope research has grown rapidly over the past four years. With this growth has come a large increase in the volume of literature on the subject. Consequently the bibliography, given below is meant to include the more significant or more complete investigations.
openaire   +1 more source

Investigation on primary and secondary processes in Nasirabad manganese deposit, south of Neyriz: using mineralogy and Pb isotope geochemistry

Journal of Economic Geology, 2013
The Nasirabad manganese deposit is located 5 km south of Nasirabad, 8 km SW of Neyriz in the Fars province. Structurally, the area is placed in the southeastern part of Zagros thrust belt. In this area, the manganese mineralization occurred as ore layers
Ali Reza Zarasvandi, Mohsen Rezaei, Houshang Pourkaseb, Adel Saki   +3 more
doaj  

Oceanic Anoxic Event 2 triggered by Kerguelen volcanism

Nature Communications
Large Igneous Provinces (LIPs) are associated with global warming and carbon cycle perturbations during Oceanic Anoxic Event 2 (OAE2, ~94 Ma) and the Mid-Cenomanian Event (MCE, ~96.5 Ma).
C. A. Walker-Trivett, S. Kender, K. A. Bogus, K. Littler, T. Edvardsen, M. J. Leng, J. Lacey, J. B. Riding, I. L. Millar, D. Wagner   +9 more
doaj   +1 more source

Automated NanoSIMS Measurements of Spinel Stardust from the Murray Meteorite

, 2010
We report new O isotopic data on 41 presolar oxide grains, 38 MgAl2O4 (spinel) and 3 Al2O3 from the CM2 meteorite Murray, identified with a recently developed automated measurement system for the NanoSIMS.
Alain Morgand, Amari, Amari, Andreä, Boothroyd, Busso, Choi, Davidson, Ernst Zinner, Frank Gyngard, Frank J. Stadermann, Gao, Gyngard, Gyngard, Gyngard, Heck, Heck, Hernanz, Hoppe, Hughes, Hynes, Iliadis, José, José, José, K. Mairin Hynes, Kahane, Kovetz, Larry R. Nittler, Lin, Lodders, Lodders, Marks, Meyer, Meyer, Nguyen, Nittler, Nittler, Nittler, Nittler, Nittler, Nollett, Nozawa, Pagel, Rauscher, Straniero, Wasserburg, Yaron, Yoshida, Zega, Zega, Zinner, Zinner, Zinner   +53 more
core   +1 more source

Continental Crust Rejuvenation Across the Paleo‐Mesoarchean Transition Resulted From Elevated Mantle Geotherms

Geophysical Research Letters
The increase in initial Hf isotopes identified in early Mesoarchean detrital zircon is commonly interpreted as a reflection of the geodynamic transition from stagnant‐lid to mobile‐lid tectonics.
Gui‐Mei Lu, Yi‐Gang Xu, Wei Wang, Christopher J. Spencer, Guangyu Huang, Nick M. W. Roberts   +5 more
doaj   +1 more source

The Vazante and Canastra groups revisited: Sm-Nd and Sr isotopes - evidence for contribution from Tonian intraplate magmatism during passive margin development along the SW São Francisco margin, Brazil

Brazilian Journal of Geology, 2019
Combined Sm-Nd isotope studies and U-Pb ages of detrital zircons have shown significant differences between the provenance patterns of Neoproterozoic metasedimentary successions in the Southern Brasília belt.
Manuela de Oliveira Carvalho, Claudio de Morisson Valeriano, Carla Cristine Aguiar Neto, Gustavo Diniz Oliveira, Monica Heilbron   +4 more
doaj   +1 more source

Tracer Applications of Noble Gas Radionuclides in the Geosciences

, 2013
The noble gas radionuclides, including 81Kr (half-life = 229,000 yr), 85Kr (11 yr), and 39Ar (269 yr), possess nearly ideal chemical and physical properties for studies of earth and environmental processes.
Fischer, T. P., Kennedy, B. M., Lu, Z. -T., Purtschert, R., Schlosser, P., Severinghaus, J. P., Smethie Jr., W. M., Solomon, D. K., Sturchio, N. C., Tanhua, T., Yokochi, R.   +10 more
core   +3 more sources