Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Catherine A. McCammon"'
Autor:
Vincenzo Stagno, Luca Bindi, Barbara Bonechi, Steeve Greaux, Sonja Aulbach, Tetsuo Irifune, Stefano Lupi, Giulia Marras, Catherine A. McCammon, Manuela Nazzari, Federica Piccirilli, Brent Poe, Claudia Romano, Piergiorgio Scarlato
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract The chemistry and mineralogy of slabs subducted into lower mantle control slab rheology and impact the deep volatile cycle. It is known that the metamorphism of little-altered oceanic crust results in eclogite rocks with subequal proportions
Externí odkaz:
https://doaj.org/article/2ea77f7cafa14613953f490df9458431
Autor:
Christian Schröder, Moli Wan, Ian B. Butler, Alastair Tait, Stefan Peiffer, Catherine A. McCammon
Publikováno v:
Minerals, Vol 10, Iss 12, p 1090 (2020)
The Fe(II) monosulfide mineral mackinawite (FeS) is an important phase in low-temperature iron and sulfur cycles, yet it is challenging to characterize since it often occurs in X-ray amorphous or nanoparticulate forms and is extremely sensitive to ox
Externí odkaz:
https://doaj.org/article/c22462ec87e34e559323b31e5ad5362f
Autor:
Osamu Ikeda, Tatsuya Sakamaki, Takaya Mitsui, Kosuke Fujiwara, Catherine A. McCammon, Akio Suzuki
Publikováno v:
Journal of the Physical Society of Japan. 92
Autor:
Hugh St. C. O'Neill, Catherine C. McCammon, Garry J. Foran, Stewart J Campbell, K.D. Jayasuriya, Andrew J. Berry
Publikováno v:
American Mineralogist. 91:404-412
The effect of pressure on the Fe 3+ /∑Fe ratio of an anhydrous andesitic melt was determined from 0.4 to 3.0 GPa at 1400 °C with oxygen fugacity controlled internally by the Ru + RuO 2 buffer. Values of Fe 3+ /∑Fe were determined by Mossbauer sp
Publikováno v:
The Canadian Mineralogist. 40:1609-1627
La freudenbergite (Na 2 Fe 3 + 2 Ti 6 O 1 6 ) est presente dans des filons de syenite hyperalcaline a Katzenbuckel, dans le sud-ouest de l'Allemagne, en association avec lorenzenite, pyrochlore, landauite et des silicates de Na-Zr comme manifestation
Publikováno v:
American Mineralogist. 87:1490-1493
The microscopic behavior of the C 2/ m ↔ P 2 1 / m phase transition occurring in cummingtonite (36 mol% Fe) as a function of temperature has been investigated using Mossbauer spectroscopy performed in the temperature range 100–550 K. The quadrupo
Autor:
Jack Silver, Dominic A. Davies, Catherine A. McCammon, S. Ananadan, Paul J. Marsh, John R. Miller, P. J. Titler, George R. Fern
Publikováno v:
Hyperfine Interactions. :109-117
The behaviour of a number of different molecular solids (both neutral and charged) to applied pressure is discussed. It is shown that the geometry of the molecules, the presence of and number of charges, and the ability of the molecules to alter thei
Autor:
Catherine A. McCammon
Publikováno v:
Hyperfine Interactions. :73-81
The concentration of Fe3+ in mantle minerals determines many of their physical and chemical properties. Traditionally iron in major mantle phases has been assumed to be predominantly Fe2+, but results from both high-pressure experiments and inclusion
Autor:
Catherine A. McCammon
Publikováno v:
Reviews in Mineralogy and Geochemistry. 39:241-264
The Mossbauer effect is the recoilless absorption and emission of γ-rays by specific nuclei in a solid (Mossbauer 1958a, 1958b), and provides a means of studying the local atomic environment around the nuclei. It is a short-range probe, and is sensi