Characteristics of fluid inclusions in the sandstone‐hosted Qianjiadian uranium deposit, southwest Songliao Basin, northeastern China: Implications for the nature and evolution of ore‐forming fluids

2021 ◽  
Vol 72 (1) ◽  
Author(s):  
Xue‐li Ma ◽  
Ke‐yong Wang ◽  
Ruo‐shi Jin ◽  
Jian‐guo Li ◽  
Hong‐ying Zhou ◽  
...  
Keyword(s):  
Fluid Inclusions ◽  
Uranium Deposit ◽  
Northeastern China ◽  
Songliao Basin

scholarly journals Ore Genesis at the Jinchang Gold–Copper Deposit in Heilongjiang Province, Northeastern China: Evidence from Geology, Fluid Inclusions, and H–O–S Isotopes

Minerals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 99 ◽  
Author(s):  
Shunda Li ◽  
Xuebing Zhang ◽  
Lingling Gao
Keyword(s):  
Fluid Inclusions ◽  
Copper Deposit ◽  
Northeastern China ◽  
Heilongjiang Province ◽  
Quartz Veins ◽  
Daughter Mineral ◽  
Rich Liquid ◽  
Three Stages ◽  
Stage 1 ◽  
Late Stages

The Jinchang gold–copper deposit is located in Eastern Heilongjiang Province,Northeastern China. The orebody comprises primarily hydrothermal breccias, quartz veins, anddisseminated ores within granite, diorite, and granodiorite. Three paragenetic stages are identified:early quartz–pyrite–arsenopyrite (Stage 1), quartz–pyrite–chalcopyrite (Stage 2), and latequartz–pyrite–galena–sphalerite (Stage 3). Gold was deposited during all three stages and Stage 1was the major gold-producing stage. Copper is associated with the mineralization but has loweconomic value. Fluid inclusions (FIs) within the deposit are liquid-rich aqueous, vapor-rich aqueous,and daughter-mineral-bearing types. Microthermometric data for the FIs reveal decreasinghomogenization temperatures (Th) and salinities of the ore-forming fluids over time. The Th forStages 1–3 of the mineralization are 421–479, 363–408, and 296–347 °C, respectively. Stage 1 fluidsin vapor-rich and daughter-mineral-bearing inclusions have salinities of 5.7–8.7 and 49.8–54.4 wt%NaCl equivalent, respectively. Stage 2 fluids in vapor-rich, liquid-rich, and daughter-mineral-bearinginclusions have salinities of 1.2–5.4, 9.5–16.0, and 43.3–48.3 wt% NaCl, respectively. Stage 3 fluids inliquid-rich and daughter-mineral-bearing inclusions have salinities of 7.9–12.6 and 38.3–42.0 wt% NaClequivalent, respectively. The estimated trapping pressures are 160–220 bar, corresponding toan entrapment depth of 1.6–1.2 km in the paleo-water table. Oxygen and hydrogen isotope data(δ18OV-SMOW = 8.6‰ to 11.4‰; δDV-SMOW = −92.2‰ to −72.1‰) suggest that the ore-forming fluidswere derived from magmatic fluids during the early stages of mineralization and subsequentlyincorporated meteoric water during the late stages. The sulfide minerals have δ34SVCDT values of0.2‰–3.5‰, suggesting that the sulfur has a magmatic origin. The Jinchang deposit is a typicalgold-rich gold–copper porphyry deposit.

Ostracoda from the Santonian–Campanian (Upper Cretaceous) Nenjiang and Sifangtai formations, Songliao Basin, northeastern China

2021 ◽  
pp. 1-23
Author(s):  
Yunqi Ye ◽  
Dangpeng Xi ◽  
Lixin Sun ◽  
Dermeval Aparecido Do Carmo ◽  
Lucas Silveira Antonietto ◽  
...  
Keyword(s):  
Sexual Dimorphism ◽  
Late Cretaceous ◽  
Upper Cretaceous ◽  
Northeastern China ◽  
Songliao Basin ◽  
Unique Material ◽  
China And Japan ◽  
Far Eastern

Abstract Despite the abundant literature on limnic Cretaceous ostracode faunas, the database on mid-Late Cretaceous taxa is still scarce. The Songliao Basin in northeastern China preserves a diverse assemblage of ostracode fossils from the Santonian–Campanian Nenjiang and Sifangtai formations. This rather unique material is of major importance to comprehend Early to mid-Late Cretaceous (Cenomanian–Campanian) limnic ostracode faunas and therefore the evolution of Late Cretaceous basins in China. A study of this fauna was conducted to detail the taxonomy of ostracode species from members 1 and 2 of the Nenjiang and Sifangtai formations in the Songliao Basin. Well-preserved specimens of 14 ostracode species were recovered from samples of the ZKY2-1 well in southwestern Songliao Basin: Scabriculocypris liaukhenensis Liu in Netchaeva et al., 1959, Ilyocyprimorpha netchaevae Su in Netchaeva et al., 1959, Cypridea acclinia Netchaeva in Netchaeva et al., 1959, Cypridea cavernosa Galeeva, 1955, Cypridea gracile Netchaeva in Netchaeva et al., 1959, Cypridea lepida Ye in DOFEAD, 1976, Cypridea squalida Sou in Netchaeva et al., 1959, Fabaeformiscandona? Disjuncta (Hao in Hao et al., 1974), Lycopterocypris profunda Lübimova, 1956, Mongolocypris magna (Hou, 1958), Mongolocypris tera (Su in Netchaeva et al., 1959), Talicypridea obliquecostae (Szczechura and Błaszyk, 1970), Talicypridea reticulata (Szczechura, 1978) and Renicypris renalata (Su in Hao et al., 1974). Four of the species identified received emended descriptions and diagnoses. Other important results include the first discussion on sexual dimorphism in Cypridea acclinia and Fabaeformiscandona? disjuncta, the first study on the ontogeny of Ilyocyprimorpha netchaevae, and the reassignment of Cypridea liaukhenensis to the genus Scabriculocypris. Several species recorded herein are also found in other continental far-eastern Asian basins, while genera range from worldwide to far-eastern Asian distribution; these results support strong affinities among faunas of Mongolia, China, and Japan.

Hot dry rock geothermal potential of the Xujiaweizi area in Songliao Basin, northeastern China

2016 ◽  
Vol 75 (6) ◽  
Author(s):  
Liangliang Guo ◽  
Yanjun Zhang ◽  
Ziwang Yu ◽  
Zhongjun Hu ◽  
Chengyu Lan ◽  
...  
Keyword(s):  
Northeastern China ◽  
Songliao Basin ◽  
Hot Dry Rock ◽  
Geothermal Potential

Origin of the carbonaceous debris and its implication for mineralization within the Qianjiadian uranium deposit, southern Songliao Basin

2019 ◽  
Vol 107 ◽  
pp. 336-352 ◽  
Author(s):  
Hui Rong ◽  
Yangquan Jiao ◽  
Liqun Wu ◽  
Dun Wan ◽  
Zhengjie Cui ◽  
...  
Keyword(s):  
Uranium Deposit ◽  
Songliao Basin

Shale Oil Assessment for the Songliao Basin, Northeastern China, Using Oil Generation–Sorption Method

2017 ◽  
Vol 31 (5) ◽  
pp. 4826-4842 ◽  
Author(s):  
Huairen Cao ◽  
Yan-Rong Zou ◽  
Yan Lei ◽  
Dangpeng Xi ◽  
Xiaoqiao Wan ◽  
...  
Keyword(s):  
Northeastern China ◽  
Songliao Basin ◽  
Shale Oil ◽  
Sorption Method ◽  
Oil Generation

Cyclostratigraphy and orbital tuning of the terrestrial upper Santonian–Lower Danian in Songliao Basin, northeastern China

2014 ◽  
Vol 407 ◽  
pp. 82-95 ◽  
Author(s):  
Huaichun Wu ◽  
Shihong Zhang ◽  
Linda A. Hinnov ◽  
Ganqing Jiang ◽  
Tianshui Yang ◽  
...  
Keyword(s):  
Northeastern China ◽  
Songliao Basin ◽  
Orbital Tuning
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