Zobrazeno 1 - 10
of 21
pro vyhledávání: '"M. Gannibal"'
Publikováno v:
Minerals
Volume 11
Issue 1
Minerals, Vol 11, Iss 27, p 27 (2021)
Volume 11
Issue 1
Minerals, Vol 11, Iss 27, p 27 (2021)
Recently experiments on He extraction from an amphibole by the incremental heating unexpectedly revealed that the He release pattern depends on the heating rate. During slow heating (~4 K·
min&minus
1) of the amphibole grains, one smo
min&minus
1) of the amphibole grains, one smo
Publikováno v:
Geochemistry International. 56:1084-1092
The paper presents newly acquired data on the budget and mobility of isotopes of noble gases in samples of amphibole, a mineral commonly characterized by relatively high He concentrations compared to other rock-forming minerals of Earth’s crust. In
Publikováno v:
Chemical Geology. 486:40-49
Abundances of radiogenic He and Ar isotopes, observed in ground waters of the Permian-Carboniferous terrigenous sediments (PCT) in Northern Switzerland, exceed those in the overlaying (Muschelkalk) and underlying (Crystalline basement) aquifers, elim
Publikováno v:
Chemical Geology. 533:119442
Helium isotopes are useful for tracing terrestrial water movement and calculating residence times, which have important implications for radioactive waste disposal and carbon capture and storage projects. Helium concentrations are generally measured
Autor:
Igor Tolstikhin, A. B. Verchovsky, I. L. Kamensky, M. Gannibal, S.V. Tarakanov, V. I. Skiba, V. R. Vetrin
The first evidence for a specific role of amphiboles in He isotope balance of crustal rocks was presented in early contributions by Gerling et al. (1971, 1976). Since then it was shown that 4He and 3He concentrations in amphiboles generally exceed th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70ce4e5207e961d54b83e9e48c8498cf
http://oro.open.ac.uk/53877/1/53877.pdf
http://oro.open.ac.uk/53877/1/53877.pdf
Publikováno v:
Chemical Geology. 286:48-58
In a rock–water system an apparent residence time for He can be derived from the bulk He concentration in the rock and the porewater and the He production rate provided that (1) the system is at steady state and (2) the He flux from external source
Autor:
Igor Tolstikhin, I. L. Kamensky, Jan Kramers, Marek Pekala, M. Gannibal, V. I. Skiba, D. Novikov, S. Tarakanov
Publikováno v:
Geochimica et Cosmochimica Acta. 74:1436-1447
Important He and Ar isotope studies on rocks and minerals, relevant to the geochemical and degassing history of the Earth, are often hampered by insufficient knowledge of the retentivity of different types of sites in minerals (inclusions, matrix) fo
Publikováno v:
Earth and Planetary Science Letters. 238:31-41
Several important fundamental and applied problems require a quantification of slow rates of groundwater flow. To resolve these problems helium appears to be a promising tracer. In this contribution we discuss a new approach, which gives the helium i
Autor:
David Weiss, B. Marty, Anne Verhulst, V. A. Nivin, I. L. Kamensky, Daniel Demaiffe, V. R. Vetrin, Elena Balaganskaya, M. Gannibal, S. V. Ikorsky, Igor Tolstikhin
Publikováno v:
Geochimica et Cosmochimica Acta. 66:881-901
During the Devonian magmatism (370 Ma ago) ∼20 ultrabasic-alkaline-carbonatite complexes (UACC) were formed in the Kola Peninsula (north-east of the Baltic Shield). In order to understand mantle and crust sources and processes having set these comp
Autor:
L. M. Ploschansky, V. A. Nivin, I. V. Tokarev, M. Gannibal, I. L. Kamensky, S. P. Orlov, H.H. Loosli, B. E. Lehmann, Igor Tolstikhin
Publikováno v:
Geochimica et Cosmochimica Acta. 63:1605-1611
Reduced 4 He/ 3 He ratios, e.g., down to ≈1/100 times those expected from radiogenic production, were observed in sedimentary rocks. Formation and history of these rocks eliminate a contribution of mantle 3 He-bearing fluid. To explain the differen