Nuomuhonghe Fm

Conformable contact with the underlying Golmudhe Fm

Unconformable contact with the overlying Lower Triassic stratum

In the small intermontane fault-depression basins on both sides of the Golmud River, the formation is formed by clastic and volcanic rocks intercalated with limestone, yielding fusulinids Pseudoschwagerina moelleri, Eoparafusulina sp. and Quasifusulina sp.; coral Caninia solgensis; brachiopod Dictyoclostus sp., etc. In disconformable contact with the underlying early Late Carboniferous stratum. The formation is still exposed in scattered outcrops around the south slope of Burhan Budai Mt., dominated by gray to dark-gray thick-bedded limestone, intercalated with sandstone and intermediate-acid tuff, yielding fusulinid Pseudoschwagerina sp. and coral Lophophyllidium sp. In the upper Nuomuhong River, it lies unconformably over the Golmudhe Fm, thickness 156 m. In the Dongmu Beishan area of Madoi County in the eastern part, it is over 840 m thick, yielding fusulinid Eoparafusulina sp., etc., also in unconformable contact with the underlying Golmudhe Fm. In the Kunlun Lake area in the western part, its thickness increases to ~2000 m, composed of limestone intercalated with pyroclastic rock. The limestone yields fusulinids Pseudoschwagerina sp., etc.