Fig. 3From: Characteristics and origin of a new type of polyhalite potassium ore in the Lower Triassic Jialingjiang Formation, Puguang area, northeastern Sichuan Basin, SW ChinaLithological characteristics of the new type of polyhalite potassium ore deposit in the wells ZK001 (a) and HC3 (b). In a, irregular, different-sized polyhalite fragments (grains, blocks, and strips) are sketched according to core observationBack to article page