STUDY OF SOURCE ROCK COMPOSITION AND REASON OF LAYERING IN JAJARM BAUXITE DEPOSIT (NORTH EAST OF IRAN) BY USING GEOCHEMICAL DATA

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ESMAEILI DARYOUSH; ASNA ASHARI AMIR; RAHIMPOUR BONAB HOSSEIN

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Journal: GEOSCIENCES Year:2009 | Volume:18 | Issue:70 Page(s): 38-51

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Title

STUDY OF SOURCE ROCK COMPOSITION AND REASON OF LAYERING IN JAJARM BAUXITE DEPOSIT (NORTH EAST OF IRAN) BY USING GEOCHEMICAL DATA

Author(s)

ESMAEILI DARYOUSH | ASNA ASHARI AMIR | RAHIMPOUR BONAB HOSSEIN | Issue Writer Certificate

Keywords

BAUXITEQ2

JAJARMQ2

SOURCE ROCKQ2

GEOCHEMICAL DATAQ3

Abstract

Study of SOURCE ROCK materials in JAJARM BAUXITE deposit is the main subject of this study to show its origin. From bottom to top, this deposit consists of lower argillaceous layer, argillaceous BAUXITE, hard BAUXITE and upper kaolinite units. Correlation coefficients and scatter diagrams of immobile elements in these four layers, demonstrate an early homogenous origin at the beginning of the BAUXITE formation. Accordingly, source materials were separated slowly due to the different conditions dominated in different parts of the deposit. Difference in drainage conditions and leaching of some elements from upper part and their re-deposition in lower parts of the deposit are the main reasons for hard BAUXITE separation from argillaceous one. Formation of the lower argillaceous layer, located between argillaceous BAUXITE and carbonate footwall is due to the direct contact of the argillaceous BAUXITE and carbonate footwall and also difference in drainage rate in contact area of the two layers. Geochemical evidence also depicts that upper kaolinite formation is the result of the silica leaching from upper horizons and its re-deposition in hard BAUXITEs. Compositional comparison of studied samples with chondrite and upper continental crust demonstrates the effect of both of the basic and sedimentary rocks in evolution of the JAJARM BAUXITE. Formation of this deposit can be considered as a result of the alteration of the primitive laterite in an area close to the current location of the deposit. During alteration and transportation BAUXITE is deposited on the karstic topography and then some continental sediment was added to it.

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APA: Copy

ESMAEILI, DARYOUSH, ASNA ASHARI, AMIR, & RAHIMPOUR BONAB, HOSSEIN. (2009). STUDY OF SOURCE ROCK COMPOSITION AND REASON OF LAYERING IN JAJARM BAUXITE DEPOSIT (NORTH EAST OF IRAN) BY USING GEOCHEMICAL DATA. GEOSCIENCES, 18(70), 38-51. SID. https://sid.ir/paper/31660/en

Vancouver: Copy

ESMAEILI DARYOUSH, ASNA ASHARI AMIR, RAHIMPOUR BONAB HOSSEIN. STUDY OF SOURCE ROCK COMPOSITION AND REASON OF LAYERING IN JAJARM BAUXITE DEPOSIT (NORTH EAST OF IRAN) BY USING GEOCHEMICAL DATA. GEOSCIENCES[Internet]. 2009;18(70):38-51. Available from: https://sid.ir/paper/31660/en

IEEE: Copy

DARYOUSH ESMAEILI, AMIR ASNA ASHARI, and HOSSEIN RAHIMPOUR BONAB, “STUDY OF SOURCE ROCK COMPOSITION AND REASON OF LAYERING IN JAJARM BAUXITE DEPOSIT (NORTH EAST OF IRAN) BY USING GEOCHEMICAL DATA,” GEOSCIENCES, vol. 18, no. 70, pp. 38–51, 2009, [Online]. Available: https://sid.ir/paper/31660/en

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