1-20 OF 8864 RESULTS FOR

transition metals

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
×Close Modal
Sort by
Journal Article
Published: 01 October 2016
American Mineralogist (2016) 101 (10): 2322-2330.
... these transition metal cations may be enriched in a melt or an accessory phase if hydrous melting occurs on upward convection across the wadsleyite-olivine boundary and may be useful as indicators of high-pressure origin. Wadsleyite has the spinelloid III crystal structure ( Akaogi et al. 1982 ) that is based...
FIGURES | View All (7)
Journal Article
Published: 01 September 2013
European Journal of Mineralogy (2013) 25 (3): 487-494.
...Sebastian Koch; Josef Breu Abstract Transition-metal rich micas offer interesting properties with regard to magnetism and electric conductivity and moreover allow for a post-synthesis modification of the layer charge by oxidation which makes them interesting for a variety of applications...
FIGURES | View All (4)
Journal Article
Published: 01 May 2007
American Mineralogist (2007) 92 (5-6): 844-862.
...Bjorn Mysen Abstract Olivine/melt partitioning of the transition metal cations, Fe 2+ , Mn 2+ , Co 2+ , and Ni 2+ , together with Mg 2+ and Ca 2+ , has been examined experimentally as a function of melt composition at ambient pressure. Melt structure was inferred from bulk-chemical composition...
FIGURES | View All (14)
Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2005
DOI: 10.1180/EMU-notes.7.12
EISBN: 9780903056465
.... Thispaper will provide some of the latest dateon the phase diagram of iron and compare its melting curve with some other transition metals. This comparison is useful to understand systematic behaviour in transition metal melting. What is the melting temperature of iron at 3.3 Mbar? This question has...
FIGURES | View All (5)
Journal Article
Published: 01 December 2004
The Canadian Mineralogist (2004) 42 (6): 1699-1718.
... region contains cations and H 2 O groups, and the sheets are linked by hydrogen bonding and through bonds from the interlayer cations to oxygen atoms of the sheets. The minerals that contain the autunite-type sheet and divalent transition metals or magnesium and relevant synthetic compounds for which...
FIGURES | View All (8)
Journal Article
Published: 01 April 2002
Clays and Clay Minerals (2002) 50 (2): 254-264.
... of information concerning the intralamellar organization, XAS was performed to try to understand the local environment surrounding the transition metal atoms. The refinements of the reference samples agree well with the crystallographic data (Table 2 ). The moduli of the Fourier transforms are displayed...
FIGURES | View All (14)
Journal Article
Published: 01 February 1998
American Mineralogist (1998) 83 (1-2): 43-50.
... of such a hydration shell around transition metals in hydrous silicate melts should strongly effect partitioning of these elements between silicate melts, minerals, and a metal phase. Consideration of ligand field stabilization energies, suggests that hydrated Ni (super 2+) is stabilized in the melt such that mineral...
Journal Article
Published: 01 August 1996
Clays and Clay Minerals (1996) 44 (4): 470-478.
Journal Article
Published: 01 August 1984
Clays and Clay Minerals (1984) 32 (4): 334-336.
Journal Article
Published: 01 August 1978
The Canadian Mineralogist (1978) 16 (3): 447-452.
Journal Article
Journal: GSA Bulletin
Published: 01 June 1977
GSA Bulletin (1977) 88 (6): 829-843.
...RONALD J. GIBBS Abstract Samples representing yearly averages of material transported by the Amazon and Yukon Rivers were analyzed to separate the transition metals (Cr, Mn, Fe, Co, Ni, and Cu) into the following transport phases: (1) crystalline particles, (2) metal hydroxide coatings, (3) solid...
Image
( a ) Concentrations of <b>transition</b> <b>metals</b> Ti, Cr, V, Ni, Co, and Zn in wads...
Published: 01 October 2016
Figure 7 ( a ) Concentrations of transition metals Ti, Cr, V, Ni, Co, and Zn in wadsleyites from this study and the maximum observed solubilities of transition metal oxides NiO, TiO 2 , Cr 2 O 3 , and Al 2 O 3 in wadsleyite and olivine reported by Gudfinnsson and Wood (1998) (experiments were
Image
Sites of incorporated <b>transition</b> <b>metals</b> in mackinawite (FeS). Sub = Fe subs...
Published: 01 July 2015
Figure 1 Sites of incorporated transition metals in mackinawite (FeS). Sub = Fe substitution site; I-td = tetrahedral interstitial site between FeS sheets; I-sp site = square-pyramidal interstitial site.
Image
F ig . 3. Concentrations of <b>transition</b> <b>metals</b> in crustal fluids from the da...
Published: 01 June 2005
F ig . 3. Concentrations of transition metals in crustal fluids from the data sets discussed in the text (note logarithmic scale) vs. 1/T (Kelvin) showing the major control that temperature exerts on rock-buffered crustal fluids. (a). Iron. (b). Manganese. (c). Zinc. (d). Lead. (e). Copper.
Image
F ig . 4. Concentrations of <b>transition</b> <b>metals</b> in crustal fluids from the da...
Published: 01 June 2005
F ig . 4. Concentrations of transition metals in crustal fluids from the data sets discussed in the text vs. chloride concentations (logarithmic scales, units are ppm). (a). Iron. (b). Manganese. (c). Zinc. (d). Lead. (e). Copper. Arrays of data points from individual data sets
Journal Article
Published: 01 July 2015
American Mineralogist (2015) 100 (7): 1509-1517.
...Figure 1 Sites of incorporated transition metals in mackinawite (FeS). Sub = Fe substitution site; I-td = tetrahedral interstitial site between FeS sheets; I-sp site = square-pyramidal interstitial site. ...
FIGURES | View All (7)
Journal Article
Published: 01 April 2004
American Mineralogist (2004) 89 (4): 519-526.
..., Ga, and Ge indicates that these elements substitute for Fe within the kamacite bcc structure. Absorption edge shifts for these same elements are generally small relative to the metals themselves, suggestive of a metallic environment. Initial findings also suggest that Ga preferentially partitions...
FIGURES | View All (9)
Image
Occupanices of <b>transition</b> <b>metal</b> cations at M1, M2, M3, and T sites. ( a ) N...
Published: 01 October 2016
Figure 4 Occupanices of transition metal cations at M1, M2, M3, and T sites. ( a ) Ni, Co, and Zn; ( b ) V and Cr; ( c ) Ti. For Ni, Co, Zn, V, and Cr, sattering factors from Cromer and Mann (1968) are used to estimate occupancies while Ti occupancies is determined by neutral atom refinement
Image
Occupancy ratios [2T&#x2F;(M1+M2+2M3)] of <b>transition</b> <b>metal</b> cations Ni 2+ , Co 2+...
Published: 01 October 2016
Figure 6 Occupancy ratios [2T/(M1+M2+2M3)] of transition metal cations Ni 2+ , Co 2+ , Zn 2+ , Fe 2+ , Fe 3+ , Cr 3+ , and V 3+ in wadsleyite (for Cr and V, possible presence of minor Cr 6+ and V 5+ cannot be ruled out). T is tetrahedral site; M1, M2, and M3 are three symmetrically distinct
Image
Histograms of literature-derived <b>transition</b> <b>metal</b> isotopic compositions of ...
in > Elements
Published: 01 October 2015
F igure 1 Histograms of literature-derived transition metal isotopic compositions of natural ( A ) rocks and ( B ) fluids, with number of papers utilized noted: Fe ( n = 35), Ni ( n = 5), Cu ( n = 37), Zn ( n = 14), Mo ( n = 16). The reference standards are: IRMM 14 (Fe), NIST 986 (Ni