Contrasting REE Signatures on Manganese Ores of Iron Ore Group in North Orissa, India

Mishra, Pratibha; Mohapatra, B. K.; Singh, Prem Prakash

doi:10.1016/s1002-0721(08)60020-4

Cited by 19 publications

(5 citation statements)

References 8 publications

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“…Light REEs (LREEs) are derived from volcaniclastics, while heavy REEs (HREEs) are from the seawater (Xu Bao et al 2008;Oksuz 2011b). Increases in average 22.47) are indicative of hydrothermal origin and high volcaniclastic abundance (Hein et al 1990;Usui and Someya 1997;Singh and Rajamani 2001;Jiang et al 2002;Peng and Palmer 2002;Fitzgerald and Gillis 2006;Ghaderi et al 2006;Mishra et al 2007) (Table 4). This increase may indicate that in seawater, HREE is more stable than LREE (Ruhlin and Owen 1986).…”

Section: Discussionmentioning

confidence: 99%

Geochemical evidence for the genesis of the Sarical-Yavu hematite mineralizations (Sivas, Central Turkey)

Öksüz

Koçak

2016

Arab J Geosci

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The hematite mineralization under investigation is located 11 km NE of Sarical (Yavu) village of the Yildizeli town (Sivas Province) in central Turkey. The region is within the Central Anatolian Thrust Zone and is comprised of metamorphic units, ophiolitic rocks and overlying Tertiary volcanic and volcanosedimentary rocks in addition to Neogene terrestrial deposits. The mineralization occurs as lenticular or bedded bodies and is composed chiefly of hematite and a lesser amount of goethite. Quartz, calcite, and dolomite are the gangue minerals. Kaolinite and zeolite are the common alteration products. In this study, geochemical and mineralogical investigations were carried out using an X-ray diffractometer analysis (XRD), Raman spectroscopy, and scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDX). The V/(V + Ni) ratio increases in parallel to the detritic contribution, and when this ratio is less than 0.60, deposition conditions are said to be anoxic. Considering the V/(V + Ni) ratio and Ce anom values of the studied samples, we suggest that the environment is both oxic and anoxic in character. The overall assessment of the field observations, mineral paragenesis, major, trace, and rare earth element (REE) data indicates that the Sarical hematite mineralization is of a hydrothermal-sedimentary type.

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Section: Discussionmentioning

confidence: 99%

Geochemical evidence for the genesis of the Sarical-Yavu hematite mineralizations (Sivas, Central Turkey)

Öksüz

Koçak

2016

Arab J Geosci

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“…with the increase of terrigenous components the Ce/La ratio increases, the average value of Ce/La ratio (1.79) in the manganese ores indicates inclusion of volcaniclastic components, suggesting that the REE pattern and the Eu anomalies of the manganese-iron ores in the area are influenced by the mixing of Mn rich sea water and volcaniclastics (Mishra et al, 2007). The process of lateritization can also promote the loss of REE to some extent (Moriyama et al, 2008).…”

Section: Ree Analysismentioning

confidence: 96%

Multi-Phase Manganese Mineralization in the Noamundi Synclinorium, East Indian Shield

Chakraborty¹,

Baidya²

2020

EES

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Manganese mineralization associated with phyllites in and around Joda, Odisha belongs to the Iron Ore Group of Noamundi basin and is a part of Jamda-Koira belt of East Indian Shield. The present study area comprises low to medium grade tectonites containing economic resources of both iron and manganese. Present study is concentrated on Manganese mineralization. Field study and petro-mineralogical observations reveal syngenetic character of manganese ores comprising lowT higher oxides viz. pyrolusite, cryptomelane, manganite as major Mn-minerals along with highT lower oxides viz. jacobsite, bixbyite, braunite and hausmannite as minor Mn-minerals. The Mn-ore bodies and associated phyllites have undergone multiple phases of deformation and metamorphism followed by hydrothermal and supergene processes. Four deformational phases have been deciphered during field study. Geochemical analyses of ores and phyllitic host rocks show high values of Al2O3, TiO2, Ba, Co, Ni, Cr, Cu, Sc, V, As, Zn but depletion of Sr, Yb, Sm, Nb. Geochemical data infer ores to be a recycling product originally derived from a mafic crustal source of tholeiitic character. Age data obtained from Sm-Nd ratio of two rock samples are 3.46 Ga and 2.79 Ga. Present work provides a critical assessment on the multiphase mineralization of manganese ores.

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“…The average ∑LREE/∑HREE ratio of the Enkafela manganese deposit is 4.71. Mishra et al (2007) noted that enrichment in LREE suggests mineralisation through hydrothermal processes whereas hydrogenous deposits show HREE enrichment. LREE are more mobile than HREE in hydrothermal solution and easily transported until they reach the point of deposition, while the HREE remains close to the point of fluid input.…”

Section: Genesis Deduced From Ree Geochemistrymentioning

confidence: 99%

Genesis of the Enkafela Mn deposit: a record of submarine hydrothermal activity in the Afar Depression, Northeast Ethiopia

Melaku

Getaneh

Atnafu

2022

Applied Earth Science

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Contrasting REE Signatures on Manganese Ores of Iron Ore Group in North Orissa, India

Cited by 19 publications

References 8 publications

Geochemical evidence for the genesis of the Sarical-Yavu hematite mineralizations (Sivas, Central Turkey)

Geochemical evidence for the genesis of the Sarical-Yavu hematite mineralizations (Sivas, Central Turkey)

Multi-Phase Manganese Mineralization in the Noamundi Synclinorium, East Indian Shield

Genesis of the Enkafela Mn deposit: a record of submarine hydrothermal activity in the Afar Depression, Northeast Ethiopia

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