Timing and tectonic setting of the Sijiaying banded iron deposit in the eastern Hebei province, North China Craton: Constraints from geochemistry and SIMS zircon U–Pb dating

Geology and geochemistry of the Macheng Algoma-type banded iron-formation, North China Craton: Constraints on mineralization events and genesis of high-grade iron ores

“…12), suggesting again that they were formed in an island arc or a back-arc basin. On the basis of the necessary and sufficient condition for the deposition of BIF (Trendall, 2002), together with the deposit geology and regional data, we suggest that the Macheng BIF is Algoma-type likely formed in a back-arc basin setting, which is also consistent with previous studies of other BIFs in eastern Hebei iron metallogenic belt (Cui et al, 2014;Xiang et al, 2012;Zhang et al, 2011Zhang et al, , 2012a.…”

“…Previous studies have successfully reported zircon U-Pb ages from the host volcanic rocks interlayered with the BIF in order to constrain the mineralization age of the Algoma-type BIFs (Trendall et al, 1998;Tsikos et al, 2003;Vavra et al, 1999). In recent years, Zircon U-Pb ages of host volcanic rocks from the BIFs in eastern Hebei have been carried out in order to constrain the iron mineralization age (Chen, 2010;Cui et al, 2014;Zhang et al, 2011Zhang et al, , 2012b. In Cui et al, 2014, zircon U-Pb ages of the host biotite leptynite and plagioclase gneiss, interlayered with the orebodies from Sijiaying iron deposit were carried out in order to further constrain the mineralization age.…”

“…In recent years, Zircon U-Pb ages of host volcanic rocks from the BIFs in eastern Hebei have been carried out in order to constrain the iron mineralization age (Chen, 2010;Cui et al, 2014;Zhang et al, 2011Zhang et al, , 2012b. In Cui et al, 2014, zircon U-Pb ages of the host biotite leptynite and plagioclase gneiss, interlayered with the orebodies from Sijiaying iron deposit were carried out in order to further constrain the mineralization age. The age data suggest that the Sijiaying BIF was formed between 2535 Ma and 2543 Ma, which also indicates that the Macheng BIF, located in the other limb of the Sijiaying-Macheng synclinorium, was formed at ca.…”

Constrained 3D inversion of magnetic data with structural orientation and borehole lithology: A case study in the Macheng iron deposit, Hebei, China

“…It is a large, concealed, banded iron formation (BIF) deposit and it has more than one billion tons of iron ore (Wu et al, 2015). Based on the geologic, mineralogical, and geochemical studies of the Macheng deposit, the Macheng BIF is an Algoma-type iron exhalative formation that formed in an arc-related basin in the Neoarchean (Cui et al, 2014;Wu et al, 2015). The BIF ores, consisting of hematite and magnetite, are hosted in Neoarchean metamorphic rocks that have a significantly lower magnetic susceptibility compared with the ore body (Wu et al, 2015).…”

The rare earth element geochemistry on surface sediments, shallow cores and lithological units of Lake Acıgöl basin, Denizli, Turkey

“…In the last two decades, REEs have been widely used to study paleoenvironmental conditions and paleoclimatic changes (Bai et al, 2014;Ding et al, 2001;Domingo et al, 2011;Holser, 1997;Och et al, 2014;Yang et al, 2014) as well as sedimentary origin and tectonic settings (Chen et al, 2014;Cui et al, 2014). In addition, the distribution patterns of normalized-REE have received considerable attention in various geochemical studies due to their chemical properties of REEs.…”