Taburan Pb, Cr dan Cu di dalam bijih besi primer dan sekunder di ladang Toh Pawang, Kedah

Translated title of the contribution: The distribution of Pb, Cr and Cu in the primary and secondary iron ore in Ladang Toh Pawang, Kedah

Habibah Jamil, Wan Fuad Wan Hassan, Mohamad Md Tan

Research output: Contribution to journalArticle

Abstract

There are two types of iron ore mineralization in Ladang Toh Pawang area, Kedah i. e. the primary and secondary ore. Very low concentrations of Pb and Cr are found in the primary ore (bdl) whereas Cu is found as impurity (60-93 μg/g). The concentrations of Cr and Cu increased at the contact between the intruding iron ore body and the country rocks. Their concentrations are 27-30 μg/g and 242-294 μg/g respectively. Enrichment of these metals is caused by the metasomatic replacement when the hot molten magma interacted with the ferrugeneous shales of Mahang Formation. Generally, the concentrations of Pb and Cr in the secondary iron ore are higher compared to the primary iron ore mineralization which ranges 3-7 μg/g and 121-151 μg/g respectively. The concentrations of Cu in primary and secondary iron ore are quite similar. Distribution of Pb, Cr and Cu in the secondary iron ore originated from the weathered ferrugeneous shales of Mahang Formation. During surface processes, these metals were scavenged from ground waters and thus co-precipitated with the secondary iron ores.

Original languageUndefined/Unknown
Pages (from-to)117-122
Number of pages6
JournalSains Malaysiana
Volume36
Issue number2
Publication statusPublished - Dec 2007

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iron ore
mineralization
metal
ore body
country rock
distribution
replacement
magma
groundwater

Keywords

  • Cr
  • Cu
  • Iron ore
  • Pb

ASJC Scopus subject areas

  • General

Cite this

Taburan Pb, Cr dan Cu di dalam bijih besi primer dan sekunder di ladang Toh Pawang, Kedah. / Jamil, Habibah; Hassan, Wan Fuad Wan; Tan, Mohamad Md.

In: Sains Malaysiana, Vol. 36, No. 2, 12.2007, p. 117-122.

Research output: Contribution to journalArticle

Jamil, Habibah ; Hassan, Wan Fuad Wan ; Tan, Mohamad Md. / Taburan Pb, Cr dan Cu di dalam bijih besi primer dan sekunder di ladang Toh Pawang, Kedah. In: Sains Malaysiana. 2007 ; Vol. 36, No. 2. pp. 117-122.
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AB - There are two types of iron ore mineralization in Ladang Toh Pawang area, Kedah i. e. the primary and secondary ore. Very low concentrations of Pb and Cr are found in the primary ore (bdl) whereas Cu is found as impurity (60-93 μg/g). The concentrations of Cr and Cu increased at the contact between the intruding iron ore body and the country rocks. Their concentrations are 27-30 μg/g and 242-294 μg/g respectively. Enrichment of these metals is caused by the metasomatic replacement when the hot molten magma interacted with the ferrugeneous shales of Mahang Formation. Generally, the concentrations of Pb and Cr in the secondary iron ore are higher compared to the primary iron ore mineralization which ranges 3-7 μg/g and 121-151 μg/g respectively. The concentrations of Cu in primary and secondary iron ore are quite similar. Distribution of Pb, Cr and Cu in the secondary iron ore originated from the weathered ferrugeneous shales of Mahang Formation. During surface processes, these metals were scavenged from ground waters and thus co-precipitated with the secondary iron ores.

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