The Huoqiu iron deposit is one large iron ore field, which is located in the southeastern margin of the NCC, and one of the few Superior-type BIF mines in China (Yang et al., 2014; Liu and Yang, 2015).After decades of efforts in mineral exploration, more than ten large iron deposits have been identified, such as Zhouji, Zhangzhuang, …
The metamorphosed sedimentary type of iron deposits (BIF) is the most important type of iron deposits in the world, and super-large iron ore clusters of this type include the Quadrilatero Ferrifero district and Carajas in Brazil, Hamersley in Australia, Kursk in Russia, Central Province of India and Anshan-Benxi in China. Subordinated …
The majority of the BIF iron deposits in China are Algoma type and have undergone significant and complex post-formation metamorphism and deformation (Zhai and Windley, 1990, ... Geological Publishing House, Beijing (1994), pp. 119-129. View in Scopus Google Scholar. Shen et al., 2006.
The predominant types of high-grade iron deposits in China include skarn, sedimentary metamorphic (banded iron-formation, BIF-type), continental/submarine …
Insights into characterization and genesis of the Tieshanmiao banded iron formation deposit, China: Evidence from zircon U–Pb dating and geochemistry ... (Fig. 1). Most of BIF–hosted Fe deposits in China belong to the Algoma–type, a few belong to the Superior–type (Li et al., 2014a). Five episodes of BIFs' formation in the NCC have ...
The ores are mainly hematite, with TFe content more than 50%. In China, the BIF-related iron deposits are the most important type of iron deposits, accounting for …
This article investigates the formation mechanism of Gongg high-grade magnetite deposit, one of the largest iron ore deposits in China, hosted in Archean banded iron formation (BIF) in the Anshan-Benxi area. It combines geochemical, isotopic and geochronological data to reveal the origin and evolution of the BIF and the …
The BIF deposits in China were mainly formed in the Neoarchean with subordinate deposits during the Paleo, Meso and Neoproterozoic time ( Li et al., 2014; Dai et al., 2016 ).
The metamorphosed sedimentary type of iron deposits (BIF) is the most important type of iron deposits in the world, and super-large iron ore clusters of this …
Geological Characters and Resource Prospect of the BIF Type Iron Ore Deposits in China. The banded iron formation (BIF)-type iron ore deposits are one of the most important …
On the basis of ore-forming age, host formations, mineral assemblages, and grade of the ores, the BIF-related iron deposits in China are classified into seven types. (1) Anshan-type: Neoarchean ...
BIF-hosted iron ore deposits can be divided into three classes on the basis of their iron content: (1) iron-rich primary BIFs containing 30–45 wt.% Fe, (2) ... The main iron ore reserves of China, however, possess relatively low-grade Fe content (~30% Fe); therefore, high export rates of high-grade iron ore are expected from China's largest ...
The Paleoproterozoic (~2.38–2.21 Ga) Yuanjiacun banded iron formation (BIF), located in Shanxi Province, is a Superior-type BIF in the North China craton. This BIF is within a metasedimentary rock succession of the Yuanjiacun Formation, in the lower Lüliang Group, which has undergone lower greenschist-facies metamorphism.
These ores provide insight into iron metallogenesis and early evolution of the North China craton. In this paper, we present Sm-Nd-Fe-O isotope, mineralogical, and structural data for four BIF-type iron deposits to place constraints on their depositional ages and formation mechanism.
The predominant types of high-grade iron deposits in China include skarn, sedimentary metamorphic (banded iron-formation, BIF-type), continental/submarine volcanic-hosted and magmatic Fe-Ti-V ...
The Atmosphere and Hydrosphere. Kent C. Condie, in Earth as an Evolving Planetary System (Third Edition), 2016 Banded Iron Formation. Banded iron formation or BIF is a chemical sediment, typically thin-bedded or laminated with > 15% iron of sedimentary origin (Figure 8.6).BIF has a very distinct distribution with time (Figure 8.25).It is found in minor …
The Gongchang iron deposit, a typical Algoma-type banded iron formation (BIF) deposit located in the Eastern Block of the North China Craton (NCC), is hosted in Neoarchean metamorphic rocks, including amphibolite, biotite leptynite, garnet biotite schist, plagioclase-hornblende schist, garnet chlorite schist, muscovite quartz schist and …
Yao, P.H., 1993, Iron ore deposits of China: Beijing, Metallurgical Industry . ... Most of the BIF-related iron deposits in China are low-grade iron ores with TFe grade approximately of 30%. The ...
With a total iron ore resource of less than 10 Mt., the Tiande No.2 iron deposit located ~45 km southeast of Qinghe town (46°36′N, 90°42′E) (Fig. 1).The BIF has a NW-strike at an angle of 315°, and persists for ~1500 m with a width of ~7 m (Fig. 2 a).The BIF is stratiform and stratiform-like, and is hosted in biotite-quartz schist and biotite …
A BIF is hard and heavy sedimentary stone. The bands are composed of narrowly banded sedimentary rocks which alternate a variety of iron rich layers with fine grained quartz (chert) layers. Banded iron formations are critical to our current economy as they are by far the biggest source of economic iron deposits.
As part of the Archean greenstone belt, the Qian'an iron deposit is a typical banded iron formation (BIF)-hosted iron deposit in the North China Craton. The BIF iron orebodies, together with Archean host rocks, have experienced multiphase metamorphism and plastic deformation. Folds, especially large-scale synclines, played the most …
Sedimentary–metamorphic iron deposits are the most common of the iron deposit types in China and account for approximately 56.3% of the proven ore reserves in the country.
The Nanfen iron deposit, situated in the Anshan-Benxi area of the North China Craton (NCC), hosts scattered banded iron formations (BIFs) and BIF-hosted high-grade iron orebodies (defined by FeO T > 80 wt.%). The associated roof and bottom rocks, which occur in parallel to orebodies, are mica quartz schist and chlorite hornblende …
The Sijiaying iron deposit is located in the Eastern Hebei area of the southern section of the northern margin of the North China Craton (NCC) and is the largest single iron deposit in China. The deposit contains many banded iron formations (BIFs) and was proven to have more than 3 million tons of high-grade iron ore resources. This …
The proven reserve of the entire BIF deposits is 1.7 billion tons. All the Huoqiu iron deposits are located at a depth of about 650 m and are overlain by thick Quaternary sediments (Du and Yang, 1994, Wan et al., 2010). Previous geological reports indicate that the BIF metallogenic area in Huoqiu County was first discovered with the …
1. Introduction. China is characterized by the world's largest demand for iron ores and more than 50% of this demand is met by foreign sources (1.31 billion tons iron ores with the grade in the range 20–30% TFe from domestic and 0.74 billion tons iron ores with the grade >50% TFe from abroad in 2012). Li et al. (2012a) classified iron deposits …
Discovery of a hidden BIF deposit in Anhui province, China by integrated geological and geophysical investigations
The formation of sediment-hosted Cu Co deposits remains controversial, in part due to the lack of a precise age for Cu Co mineralization. The Dahenglu deposit is located in the eastern part of the Jiao–Liao–Ji Belt (JLJB), one of the famous sedimentary–metamorphic-type Cu Co deposits in China, that is mainly hosted within …
Banded iron formation (BIF) deposits are the most important source of iron in China, and they are dominantly distributed in the North China Craton (NCC). The …
Sir: We congratulate Dai et al. (2017) for their paper that provides age constraints and a model for the origin of banded iron formation (BIF)-related high-grade magnetite ores within the Anshan-Benxi area of the North China craton. Significantly, their contribution (1) highlights the potential relationship between Archean episodic crustal …
Integrated geological and geophysical investigations for the discovery of deeply buried gold–polymetallic deposits in China. Guoqiang Xue, Corresponding Author. Guoqiang Xue ... Beijing, China. Correspondence. Guoqiang Xue, Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, …