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Peng X.-D.,Fuzhou University | Li W.-W.,Sinopec | Li X.-M.,Fuzhou University | Shi C.-L.,Heilongjiang Province Institute of Regional Geological Survey
Jilin Daxue Xuebao (Diqiu Kexue Ban)/Journal of Jilin University (Earth Science Edition)

Based on discussing each unit of the lithostratigraphic rock composition, fossil assemblages and depositional environment from Mesozoic to Cenozoic in Wulaga fault-depression, Jiayin County, Heilongjiang Province, and comparison with other basins in SunwuJiayin and Songliao basin, the authors divided the Mesozoic and Cenozoic strata into three tectonic layers and five lithostratigraphic units, and discussed their distribution and evolution, and made the regional geological map. The Wulaga basin shows three significantly different basin evolution stages, during which the two distinct unconformities are recognised, namely: the unconformity between upper Cretaceous and Lower Cretaceous and between the Upper Cretaceous and Neogene, thus made three different types of basin evolution stages in Wulaga from Mesozoic to Cenozoic; they are Early Cretaceous rift basin evolution stage, the Late Cretaceous large scale inland depression, and Neogene inland basin evolution stages. Source

Tan C.-Y.,China University of Geosciences | Tan C.-Y.,Heilongjiang Province Mining Group Co. | Wang G.-H.,China University of Geosciences | Li Y.-S.,China University of Geosciences | Li Y.-S.,Heilongjiang Province Institute of Regional Geological Survey
Geological Bulletin of China

Recently several geochemical anomalies showing resource potential of Au-Ag-Mo-Sb deposits were discovered in gold ore deposits of Xiaoniqiuhe, Sandaowanzi, Zhengguang, Tongshan, Shangmachang, Xiaoxintun. New progress and significance on the mineral exploration in Duobaoshan mineralization area, Heilongjiang, are summarized in the paper based on these results, thus to provide new evidences for the ore-exploration and resources potential analysis in this area. Source

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