GEOCHEMISTRY OF NEOPROTEROZOIC CAP CARBONATE OF BANDED IRON-FORMATION OF THE RIZU SERIE IN JELLAL ABAD ZARAND

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KIANIAN M.; KHAKZAD A.; RASA I.; ABEDINI M.V.

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Journal: JOURNAL OF GEOTECHNICAL GEOLOGY (APPLIED GEOLOGY) Year:2009 | Volume:5 | Issue:1 Page(s): 36-49

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Title

GEOCHEMISTRY OF NEOPROTEROZOIC CAP CARBONATE OF BANDED IRON-FORMATION OF THE RIZU SERIE IN JELLAL ABAD ZARAND

Author(s)

KIANIAN M. | KHAKZAD A. | RASA I. | ABEDINI M.V. | Issue Writer Certificate

Keywords

GLOBAL GLACIATIONSQ3

CARBON ISOTOPEQ2

DIAMICTITEQ3

DROPSTONEQ3

GLACIALQ3

Abstract

In the study area, the various of cap carbonates include medium to coarse (saddle dolomite) grains of dolomites, are situated uppermost of sequence of Rizu Formation. The sequence of Rizu serie contains of various lithology, quartzite sandstone, turbidities (Greywacke) with association of ore minerals (Magnetite- Hematite- Jasper), in the form of Banded iron- Formations, (BIFs).The existence of DROPSTONEs with heterogeneous grains (Diamictite) within fine matrix of carbonate are the indicators for glaciations episodes, which are located under the cao carbonate. Chemical analyses of carbonates showed that the dc13, do18 values of carbonates in area are low, ranging From- 2.65 to -6.79 per mil versus (PDB), and- 6.48 to-15.21permil (PDB), respectively, whereas the excursion wide range of 18-oxygen isotope reflect the alteration and diagenetic processes. The high concentration of iron and manganese and high index of alteration (Fe/Sr=720 or Mn/Sr=52) is associated by decreasing 13-carbon isotope. The dc13 depleted carbonates reflect climate changes from GLACIAL (Icehouse) to greenhouse conditions that deposited during sea- level rise after retreating and deglaciation after math GLOBAL GLACIATIONS snowball earth.

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APA: Copy

KIANIAN, M., KHAKZAD, A., RASA, I., & ABEDINI, M.V.. (2009). GEOCHEMISTRY OF NEOPROTEROZOIC CAP CARBONATE OF BANDED IRON-FORMATION OF THE RIZU SERIE IN JELLAL ABAD ZARAND. JOURNAL OF GEOTECHNICAL GEOLOGY (APPLIED GEOLOGY), 5(1), 36-49. SID. https://sid.ir/paper/127057/en

Vancouver: Copy

KIANIAN M., KHAKZAD A., RASA I., ABEDINI M.V.. GEOCHEMISTRY OF NEOPROTEROZOIC CAP CARBONATE OF BANDED IRON-FORMATION OF THE RIZU SERIE IN JELLAL ABAD ZARAND. JOURNAL OF GEOTECHNICAL GEOLOGY (APPLIED GEOLOGY)[Internet]. 2009;5(1):36-49. Available from: https://sid.ir/paper/127057/en

IEEE: Copy

M. KIANIAN, A. KHAKZAD, I. RASA, and M.V. ABEDINI, “GEOCHEMISTRY OF NEOPROTEROZOIC CAP CARBONATE OF BANDED IRON-FORMATION OF THE RIZU SERIE IN JELLAL ABAD ZARAND,” JOURNAL OF GEOTECHNICAL GEOLOGY (APPLIED GEOLOGY), vol. 5, no. 1, pp. 36–49, 2009, [Online]. Available: https://sid.ir/paper/127057/en

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