Geochronology and geochemistry of the Nanfen iron deposit in the Anshan-Benxi area, North China Craton: Implications for ∼2.55 Ga crustal growth and the genesis of high-grade iron ores

- The Nanfen iron deposit belongs to Algoma type BIF.
- The formation age of the Nanfen deposit is constrained at 2552 Ma.
- The high-grade ores formed by metamorphic hydrothermalism at 2482 Ma.
- The Nanfen deposit was benefited from ∼2.55 Ga crustal growth processes.