TITLE

Mineral preferred orientation and magnetic properties as indicators of varying strain conditions in naturally deformed iron ore

AUTHOR(S)
Günther, A.; Brokmeier, H.-G.; Petrovsky, E.; Siemes, H.; Helming, K.; Quade, H.
PUB. DATE
June 2002
SOURCE
Applied Physics A: Materials Science & Processing;Dec2002 Supplement, Vol. 74 Issue 6, ps1080
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A folded layer of iron ore from a Brazilian mine was taken as a structural domain to investigate the degree of interdependence of mineral preferred orientation, magnetic properties and varying strain conditions. Hematite (α-Fe[sub 2]O[sub 3], rhombohedral) pole figures measured by means of neutron diffraction were recalculated by reducing the orientation distribution function (ODF) into a set of texture components. The degree of preferred orientation increases considerably from the limbs towards the core of the fold. Corresponding changes of magnetic susceptibility, its anisotropy and its hysteresis parameters (e.g. saturation magnetisation, saturation remanence, coercivity) indicate larger grains in the fold's nucleus due to varying deformational and texture modifying processes.
ACCESSION #
8905528

 

Related Articles

  • Primary difference.  // BRW;3/15/2007, Vol. 29 Issue 10, p38 

    The article discusses the difference between magnetite and haematite, two varieties of iron ores in Australia. It includes background information on how magnetite iron ores are formed in Australia, as well as their key features that make them distinct from their haematite counterparts. A market...

  • Arcelor Mittal Moves Forward on $2 Billion Senegal Iron Ore Project.  // Engineering & Mining Journal (00958948);Mar2007, Vol. 208 Issue 2, p28 

    The article reports that steel company Arcelor Mittal has signed agreements with the government of Senegal to develop iron ore mining in the Faleme region. The project is estimated to cost $2.2 billion. The total reserves are approximately 759 million metric tons, located in four locations in...

  • Induced polarization survey for iron ore study. Saad, Rosli; Nordiana, M. M.; Azwin, I. N.; Ahmad, A. R. // AIP Conference Proceedings;May2013, Vol. 1528 Issue 1, p186 

    The purpose of the survey is to assess the potential of iron ore mining using electrical techniques, 2-D resistivity and Induce Polarization (IP) methods. There are two types of iron ore which are high-grade ore (massive hematite rock) and low-grade ore, magnetite (25-30% Fe). The dominant...

  • Iron Ore Mining at Spinifex Ridge Commences.  // Engineering & Mining Journal (00958948);Dec2010, Vol. 211 Issue 10, p18 

    The article reports on the commencement of the iron ore mining at Spinifex Ridge in the Pilbara of Western Australia.

  • China to invest in Namibian industrial park and iron mine.  // World Mining News;3/ 4/2013, p4 

    The article reports that a delegation from Eastern China Non-Ferrous Metals Investment Holding in China has presented its proposal for iron ore mining and industrial park projects in the Kunene region in Namibia to Namibian Prime Minister Hage Geingob.

  • Kazakhstan's iron ore production down 1.9% in January-October. Interfax // Kazakhstan General Newswire;11/14/2013, p1 

    ALMATY. Nov 13 (Interfax-Kazakhstan) - In January-October 2013 Kazakhstan extracted 42.724 million tons of iron ore or an increase of 1.9% compared to the same period last year, the State Agency for Statistics said.

  • JSW Steel surges on bagging third iron ore mine in Odisha.  // Ace Analyser: Company News;2/6/2020, pN.PAG 

    This is the third consecutive mine it has won with 118 MT at 132 per cent premium

  • JSW Steel rises on wining 4th iron ore mine in Odisha auctions.  // Ace Analyser: Company News;2/7/2020, pN.PAG 

    With the latest catch, an iron ore reserves linkage of more than 1,100 million tonnes has been secured for the company

  • IOC begins $60-million expansion. Scales, Marilyn // Canadian Mining Journal;Sep2007, Vol. 128 Issue 7, p20 

    The article provides information on the operations of Iron Ore Company of Canada (IOC). In 1954, the company opened its original Smallwood mine in Schefferville, Quebec and that mine produced iron ore until 1982. In 1962, IOC opened its Carol Lake operations in Labrador City in Newfoundland and...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics