Scheelite Sm-Nd dating results indicate that the Honghuaerji deposit formed at 178.4 ± 2.9 Ma.
The fluid responsible for W mineralization is of magmatic in origin, and mantle-derived signature.
Chondrite-normalized REE distribution patterns of all scheelites are middle REE-enriched, with a strong negative Eu-anomaly.
The REE3 + substituted into the Ca site of scheelite coupled with Na and Nb, while the scheelite contain Eu as Eu2 +.
Honghuaerji deposit was formed in post-collisional tectonic setting caused by closure of the Mongol-Okhotsk Ocean.