1-20 OF 245 RESULTS FOR

cobalt

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
Journal: Geology
Published: 19 June 2020
Geology (2020) 48 (10): 1018–1022.
... peaks on the boundary correspond in time with the Cambrian explosion, when most major animal phyla appeared in the fossil record. The temporal order of increase in TEs across the 1200–520 Ma period matches the order in the negative correlation trend of Figure 1B . Cobalt and Fe (residence time = >...
FIGURES
Journal Article
Published: 11 September 2019
Geochemistry: Exploration, Environment, Analysis (2020) 20 (3): 315–322.
FIGURES | View All (5)
Journal Article
Published: 01 July 2019
American Mineralogist (2019) 104 (7): 917–928.
... phases, such as pyrite (FeS 2 ). Furthermore, the trace metal content of pyrite has been proposed as a marine paleoredox proxy. Given the diverse low-temperature diagenetic formation pathways for pyrite, this use of pyrite requires validation. We, therefore, studied nickel (Ni) and cobalt (Co...
FIGURES | View All (6)
Journal Article
Journal: Economic Geology
Published: 01 June 2019
Economic Geology (2019) 114 (4): 771–786.
FIGURES | View All (5)
Journal Article
Published: 08 May 2019
Mineralogical Magazine (2019) 83 (5): 695–703.
... 2018 11 04 2019 Copyright © Mineralogical Society of Great Britain and Ireland 2019 2019 Mineralogical Society of Great Britain and Ireland ognitite NiBiTe new mineral species Co-rich maucherite zonation in arsenides rapid cooling Ognit complex nickel-cobalt mineralisation...
FIGURES | View All (6)
Journal Article
Published: 01 April 2019
American Mineralogist (2019) 104 (4): 485–500.
FIGURES | View All (11)
Journal Article
Published: 01 March 2019
European Journal of Mineralogy (2019) 31 (2): 313–324.
... and magnetic structures of synthetic Co-olivine, Co 2 SiO 4 , Inaugural-Dissertation, TU Aachen . Sazonov , A. , Hutanu , V. , Meven , M. , Heger , G. , Hansen , T. , Senyshyn , A. ( 2010 ): Anomalous thermal expansion of cobalt olivine, Co 2 SiO 4 , at low temperatures...
FIGURES | View All (7)
Journal Article
Published: 01 March 2019
The Canadian Mineralogist (2019) 57 (2): 147–200.
... is blue to violet and generally not of gem quality. Two spinel occurrences near Kimmirut contain vivid blue, cobalt-enriched (0.03–0.07 wt.% CoO) spinel. The spinel mostly occurs in metasedimentary ( sensu stricto ) rocks, with the exception of a few metasomatic occurrences. All spinel occurs in marble...
FIGURES | View All (32)
Series: GSA Special Papers
Published: 28 December 2018
DOI: 10.1130/2018.2540(04)
EISBN: 9780813795409
..., cobalt pentlandite, heazlewoodite, and awaruite. The peridotite also contains two Ni-arsenide minerals, orcélite and maucherite; and, less commonly, the sulfides pyrrhotite, bismuthinite, bornite, and parkerite(?). These minerals form tiny to small (~3–100 μm) grains sparsely scattered amongst...
FIGURES | View All (18)
Journal Article
Published: 01 December 2018
South African Journal of Geology (2018) 121 (4): 487–494.
Journal Article
Journal: Elements
Published: 01 December 2018
Elements (2018) 14 (6): 385–390.
... biological uptake phytoplankton limitation biogeochemical cycles Cobalt is the scarcest of all bioactive trace metals and, as such, is influenced the most strongly by complex internal cycling, which has a large impact on its oceanic distributions ( Saito et al. 2017 ). Cobalt displays a ‘hybrid...
FIGURES | View All (5)
Journal Article
Published: 01 September 2018
European Journal of Mineralogy (2018) 30 (5): 917–928.
... ., 2005 , Ertl et al ., 2010 ). Very few studies addressed the influence of nickel, cobalt or copper cations on the tourmaline structure (except the discovery of weak Jahn-Teller effect) due to the low concentrations of these cations in natural tourmaline ( Henry & Dutrow, 2001 ; Ertl et al...
FIGURES | View All (4)
Journal Article
Published: 01 May 2018
European Journal of Mineralogy (2018) 30 (3): 609–620.
..., Royal Belgian Institute for Natural Sciences, Brussels) allowed us to check this hypothesis through a Rietveld study performed on synchrotron X-ray powder data. Porta et al. (1991) , as part of a long-term study on mixed Cu–Co–Zn–Cr oxide catalysts, synthesized copper-cobalt oxysalts precursors...
FIGURES | View All (5)