Early precambrian banded iron formations: Biochemical precipitates from highly evaporated hydrothermal solutions of polar region lakes

2009 ◽  
Vol 24 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Zeev Lewy
Keyword(s):  
Polar Region ◽  
Hydrothermal Solutions ◽  
Banded Iron Formations ◽  
Early Precambrian ◽  
Iron Formations

Greenalite and its role in the genesis of early Precambrian iron formations – A review

2021 ◽  
pp. 103613
Author(s):  
B. Rasmussen ◽  
J.R. Muhling ◽  
B. Krapež
Keyword(s):  
Early Precambrian ◽  
Iron Formations

Geochemical discrimination among different types of banded iron formations (BIFs): A comparative review

2021 ◽  
pp. 104244
Author(s):  
Alijan Aftabi ◽  
Habibeh Atapour ◽  
Sadegh Mohseni ◽  
Anita Babaki
Keyword(s):  
Banded Iron Formations ◽  
Comparative Review ◽  
Different Types ◽  
Iron Formations

Silver-gold and polymetallic mineralization in the banded iron formations deposit in Kryvyi Rih, Ukraine

2021 ◽  
Vol 363 ◽  
pp. 106326
Author(s):  
Anatolyi Berezovsky ◽  
Jadwiga Pieczonka ◽  
Adam Piestrzynski
Keyword(s):  
Banded Iron Formations ◽  
Polymetallic Mineralization ◽  
Iron Formations

scholarly journals Iron and Carbon Isotope Constraints on the Formation Pathway of Iron-Rich Carbonates within the Dagushan Iron Formation, North China Craton

Minerals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 94
Author(s):  
Xiaoxue Tong ◽  
Kaarel Mänd ◽  
Yuhao Li ◽  
Lianchang Zhang ◽  
Zidong Peng ◽  
...  
Keyword(s):  
Iron Reduction ◽  
Isotope Composition ◽  
Iron Formation ◽  
Banded Iron Formations ◽  
Organic C ◽  
Formation Pathway ◽  
Wide Range ◽  
Dissimilatory Iron Reduction ◽  
O Isotope ◽  
Iron Formations

Banded iron formations (BIFs) are enigmatic chemical sedimentary rocks that chronicle the geochemical and microbial cycling of iron and carbon in the Precambrian. However, the formation pathways of Fe carbonate, namely siderite, remain disputed. Here, we provide photomicrographs, Fe, C and O isotope of siderite, and organic C isotope of the whole rock from the ~2.52 Ga Dagushan BIF in the Anshan area, China, to discuss the origin of siderite. There are small magnetite grains that occur as inclusions within siderite, suggesting a diagenetic origin of the siderite. Moreover, the siderites have a wide range of iron isotope compositions (δ56FeSd) from −0.180‰ to +0.463‰, and a relatively negative C isotope composition (δ13CSd = −6.20‰ to −1.57‰). These results are compatible with the reduction of an Fe(III)-oxyhydroxide precursor to dissolved Fe(II) through microbial dissimilatory iron reduction (DIR) during early diagenesis. Partial reduction of the precursor and possible mixing with seawater Fe(II) could explain the presence of siderite with negative δ56Fe, while sustained reaction of residual Fe(III)-oxyhydroxide could have produced siderite with positive δ56Fe values. Bicarbonate derived from both DIR and seawater may have provided a C source for siderite formation. Our results suggest that microbial respiration played an important role in the formation of siderite in the late Archean Dagushan BIF.

scholarly journals Spectral characteristics of banded iron formations in Singhbhum craton, eastern India: Implications for hematite deposits on Mars

2016 ◽  
Vol 7 (6) ◽  
pp. 927-936 ◽  
Author(s):  
Mahima Singh ◽  
Jayant Singhal ◽  
K. Arun Prasad ◽  
V.J. Rajesh ◽  
Dwijesh Ray ◽  
...  
Keyword(s):  
Spectral Characteristics ◽  
Eastern India ◽  
Banded Iron Formations ◽  
Singhbhum Craton ◽  
Iron Formations
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