FERRUGINOUS OOLITIC LIMESTONE IN SHISHTU FORMATION (LATE DEVONIAN) AND THE ROLE OF MICROBIAL ACTIVITIES IN THEIR FORMATION

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MAHMUDI GHARAIE M.H.; ASHOURI A.; KHANEHBAD M.; GHADERI A.

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Journal: SEDIMENTARY FACIES Year:2009 | Volume:2 | Issue:1 Page(s): 95-104

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Title

FERRUGINOUS OOLITIC LIMESTONE IN SHISHTU FORMATION (LATE DEVONIAN) AND THE ROLE OF MICROBIAL ACTIVITIES IN THEIR FORMATION

Author(s)

MAHMUDI GHARAIE M.H. | ASHOURI A. | KHANEHBAD M. | GHADERI A. | Issue Writer Certificate

Keywords

OOLITEQ3

FERRUGINOUS SEDIMENTSQ3

SHISHTU FORMATIONQ3

LATE DEVONIANQ2

MICROBIALQ3

Abstract

Ferruginous shallow marine limestones of LATE DEVONIAN age -mainly Famennian- are widely distributed across central and eastern Iran. The iron, almost hematite, is concentrated in oolitic and skeletal grainstones, skeletal packstones and rarely in lime-mudstones. Hematite occurred as clay coatings on various allochems (ooids, bioclasts and intraclasts), and also as finely dispersed clays within micritic beds. Most grains are concentrically laminated with alternations on ferruginous clays and micro-laminae suggesting the clays were syndepositionally accreted to grain surfaces. The ferruginous beds are commonly associated with ooides and oncoides. The planar to wavy and sometimes discontinuous laminae with individual thickness of 2 to 5 mm resemble oncolitic MICROBIALites. The MICROBIAL tubules from laminae show several concentric layer of stepwise growth around a core. Micro-morphological and mineralogical characteristics suggest biogenic factors are essential for the formation of ferruginous grains.

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APA: Copy

MAHMUDI GHARAIE, M.H., ASHOURI, A., KHANEHBAD, M., & GHADERI, A.. (2009). FERRUGINOUS OOLITIC LIMESTONE IN SHISHTU FORMATION (LATE DEVONIAN) AND THE ROLE OF MICROBIAL ACTIVITIES IN THEIR FORMATION. SEDIMENTARY FACIES, 2(1), 95-104. SID. https://sid.ir/paper/199840/en

Vancouver: Copy

MAHMUDI GHARAIE M.H., ASHOURI A., KHANEHBAD M., GHADERI A.. FERRUGINOUS OOLITIC LIMESTONE IN SHISHTU FORMATION (LATE DEVONIAN) AND THE ROLE OF MICROBIAL ACTIVITIES IN THEIR FORMATION. SEDIMENTARY FACIES[Internet]. 2009;2(1):95-104. Available from: https://sid.ir/paper/199840/en

IEEE: Copy

M.H. MAHMUDI GHARAIE, A. ASHOURI, M. KHANEHBAD, and A. GHADERI, “FERRUGINOUS OOLITIC LIMESTONE IN SHISHTU FORMATION (LATE DEVONIAN) AND THE ROLE OF MICROBIAL ACTIVITIES IN THEIR FORMATION,” SEDIMENTARY FACIES, vol. 2, no. 1, pp. 95–104, 2009, [Online]. Available: https://sid.ir/paper/199840/en

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