Mesoarchean geodynamic regime evidenced from diverse granitoid rocks in the Anshan-Benxi area of the North China Craton

The petrogenesis and inner genetic relations of Mesoarchean granitoid rocks have been poorly researched in the Anshan-Benxi (AB) area of the North China Craton. These Mesoarchean granitoids are mainly composed of ~3.14 Ga Lishan trondhjemitic gneisses (LSTG), and 2.95–3.01 Ga Donganshan – Jinjialing trondhjemitic to monzogranitic gneisses (DTMG) and Tiejiashan – Gongchangling high-K granitoid gneisses (TGKG), which show essentially consistent ages of magmatic crystallization.