开鲁盆地钱家店地区姚家组还原剂特征及铀成矿作用

doi:10.19388/j.zgdzdc.2023.01.02

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (2856 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A super-large uranium deposit was discovered in Qianjiadian area of Kailu Basin. In order to define the influence of reservoir reducing agent on uranium mineralization, the authors defined the characteristics of reducing agent through the application of core, microscopic observation and related testing techniques. The results show that reducing agent in uranium reservoir in the study area is mainly in the form of organic-carbonized plant debris, hydrocarbons and pyrite. The pyrite in organic matter can provide a lot of high-quality reducing agent for uranium mineralization. The methane content and total amount of hydrocarbons in the mineralized sandstone are higher than those in other types of sandstone, and the ratio of gas hydrocarbon to heavy hydrocarbon increase obviously with uranium enrichment, indicating that uranium enrichment is also closely related to hydrocarbons. The common pyrite types in uranium reservoirs include raspberry pyrite, colloidal pyrite, idiomorphic pyrite and alloomorphic pyrite, which coexist with uranium in various forms as reducing agents. The TOC content and S content are generally higher, while Fe₂O₃/FeO ratio is obviously lower in sandstone with mineralized horizon. On the contrary, TOC content and S content are generally lower in the non-mineralized sandstone, while Fe₂O₃/FeO ratio is higher, indicating that uranium mineralization is positively correlated with TOC content and total S content, and is negatively correlated with Fe₂O₃/FeO. Therefore, the reducing agent is of great significance on restricting mechanism of uranium mineralization by the in-depth study on the characteristics of reducing agent in uranium reservoir, which provides theoretical guidance for the exploration and prediction of sandstone type uranium deposits.

Key words： Qianjiadian area uranium deposit reducing agent mineralization Songliao Basin

Received: 29 November 2021

ZTFLH:

P59

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	SHAN Zhibo

Cite this article:

SHAN Zhibo. Characteristics of reducing agent and uranium mineralization of Yaojia Formation in Qianjiadian area of Kailu Basin[J]. , 2023, 10(1): 20-27.

URL:

http://journal25.magtechjournal.com/Jwk_dzdc/EN/10.19388/j.zgdzdc.2023.01.02 OR http://journal25.magtechjournal.com/Jwk_dzdc/EN/Y2023/V10/I1/20

[1] 陈晓林,向伟东,李田港,等.松辽盆地QJD铀矿床层间氧化带的展布特征及其与沉积相、铀成矿的关系[J].世界核科学地质,2006,23(3):137-144.
Chen X L,Xiang W D,Li T G,et al.Distribution characteristics of interlayer oxidation zone and its relationship with sedimentary facies and uranium mineralization in QJD uranium deposit,Songliao Basin,NE China[J].World Nucl Geosci,2006,23(3):137-144.
[2] 陈晓林,向伟东,李田港,等.松辽盆地钱家店铀矿床含矿层位的岩相特征及其与铀成矿的关系[J].铀矿地质,2007,23(6):335-341,355.
Chen X L,Xiang W D,Li T G,et al.Lithofacies characteristics of ore-hosting horizon and its relationship to uranium mineralization in Qianjiadian uranium deposit,Songliao basin[J].Uranium Geol,2007,23(6):335-341,355.
[3] 蔡煜琦,李胜祥.钱家店铀矿床含矿地层——姚家组沉积环境分析[J].铀矿地质,2008,24(2):66-72.
Cai Y Q,Li S X.Sedimentary environment analysis of Yaojia Formation-the ore-hosting stratum of Qianjiadian uranium depo-sit[J].Uranium Geol,2008,24(2):66-72.
[4] 焦养泉,吴立群,荣辉.砂岩型铀矿的双重还原介质模型及其联合控矿机理:兼论大营和钱家店铀矿床[J].地球科学,2018,43(2):459-474.
Jiao Y Q,Wu L Q,Rong H.Model of inner and outer reductive media within uranium reservoir sandstone of sandstone-type uranium deposits and its ore-controlling mechanism:Case studies in Daying and Qianjiadian Uranium Deposits[J].Earth Sci,2018,43(2):459-474.
[5] 胡林,徐琳,肖进,等.西藏冈底斯中段错杰地区花岗斑岩年代学、地球化学特征及其找矿意义[J].中国地质调查,2021,8(5):53-63.
Hu L,Xu L,Xiao J,et al.Chronology,geochemical characteristics and prospecting significance of the granite porphyry in Cuojie area of Middle Gangdise in Tibet[J].Geol Surv China,2021,8(5):53-63.
[6] 高玉友,禹宝利,于文斌,等.松辽盆地西南部钱家店-架玛吐地区姚家组铀成矿条件及控矿因素分析[J].世界核地质科学,2008,25(3):150-156.
Gao Y Y,Yu B L,Yu W B,et al.Analysis on uranium metallogenic conditions and ore-controlling factors of Qianjiadian-Jiamatu area,Southwest of Songliao Basin[J].World Nucl Geosci,2008,25(3):150-156.
[7] 林锦荣,田华,董文明,等.松辽盆地东南部铀矿找矿目的层原生地球化学类型与后生蚀变作用[J].铀矿地质,2009,25(4):202-207.
Lin J R,Tian H,Dong W M,et al.Original geochemical types and epigenetic alteration of rocks in prospecting target stratum for uranium deposit in the southeast of Songliao basin[J].Uranium Geol,2009,25(4):202-207.
[8] 庞雅庆,陈晓林,方锡珩,等.松辽盆地钱家店铀矿床层间氧化与铀成矿作用[J].铀矿地质,2010,26(1):9-16,23.
Pang Y Q,Chen X L,Fang X H,et al.Discussion on the interlayer oxidation and uranium metallogenesis in Qianjiadian uranium deposit,Songliao Basin[J].Uranium Geol,2010,26(1):9-16,23.
[9] 李林强. 钱家店铀矿床红色泥砾砂岩岩石学特征及矿化成因分析[J].铀矿地质,2014,30(5):271-275.
Li L Q.Petrological characteristic and mineralization analysis of red muddy Gravelled Sandston in Qianjiadian uranium depo-sit[J].Uranium Geol,2014,30(5):271-275.
[10] 李建国,金若时,张博,等.松辽盆地西南部上白垩统姚家组原生黏土矿物组合特征及其找铀意义[J].地球学报,2018,39(3):295-305.
Li J G,Jin R S,Zhang B,et al.Characteristics of primary clay minerals in the upper Cretaceous Yaojia formation of Southwest Songliao basin and their significance[J].Acta Geosci Sin,2018,39(3):295-305.
[11] 薛洪富,曾道国,向明坤,等.黔西北峨眉山玄武岩顶部Fe-Al岩系特征及其三稀元素富集特点[J].中国地质调查,2021,8(5):25-34.
Xue H F,Zeng D G,Xiang M K,et al.Characteristics of Fe -Al rock series on the top of Emeishan basalt in northwestern Guizhou province and enrichment characteristics of its three rare eleme-nts[J].Geol Surv China,2021,8(5):25-34.
[12] 聂逢君,严兆彬,夏菲,等.内蒙古开鲁盆地砂岩型铀矿热流体作用[J].地质通报,2017,36(10):1850-1866.
Nie F J,Yan Z B,Xia F,et al.Hot fluid flows in the sandstone-type uranium deposit in the Kailu Basin[J].Geol Bull China,2017,36(10):1850-1866.
[13] 李宏涛,吴世祥,蔡春芳,等.油气相关砂岩型铀矿的形成过程:以钱家店铀矿床为例[J].地球化学,2008,37(6):523-532.
Li H T,Wu S X,Cai C F,et al.Forming processes of petroleum-related sandstone-type uranium ore:example from Qianjiadian uranium deposit[J].Geochimica,2008,37(6):523-532.
[14] 郑纪伟. 开鲁盆地钱家店铀矿床成矿地质条件及勘探潜力分析[J].铀矿地质,2010,26(4):193-200,207.
Zheng J W.Geological setting and exploration potential of Qianjiadian uranium deposit in Kailu basin[J].Uranium Geol,2010,26(4):193-200,207.
[15] 单芝波. 松辽盆地钱家店地区姚家组赋矿砂岩的组成、地球化学特征及其构造背景[J].地质科学,2019,54(2):472-490.
Shan Z B.Detrital modal,geochemical characteristics and tectonic setting of the Yaojia Formation ore-bearing sandstones in Qianjiadian area,Songliao Basin[J].Chin J Geol,2019,54(2):472-490.
[16] 陈方鸿,张明瑜,林畅松.开鲁盆地钱家店凹陷含铀岩系姚家组沉积环境及其富铀意义[J].沉积与特提斯地质,2005,25(3):74-79.
Chen F H,Zhang M Y,Lin C S.Sedimentary environments and uranium enrichment in the Yaojia Formation,Qianjiadian depression,Kailu Basin,Nei Mongol[J].Sediment Geol Tethyan Geol,2005,25(3):74-79.
[17] 罗毅,马汉峰,夏毓亮,等.松辽盆地钱家店铀矿床成矿作用特征及成矿模式[J].铀矿地质,2007,23(4):193-200.
Luo Y,Ma H F,Xia Y L,et al.Geologic characteristics and metallogenic model of Qianjiadian uranium deposit in Songliao Bas-in[J].Uranium Geol,2007,23(4):193-200.
[18] 夏毓亮,郑纪伟,李子颖,等.松辽盆地钱家店铀矿床成矿特征和成矿模式[J].矿床地质,2010,29(S1):154-155.
Xia Y L,Zheng J W,Li Z Y,et al.Metallogenic characteristics and metallogenic model of the Qianjiadian uranium deposit,Songliao Basin[J].Mineral Deposits,2010,29(S1):154-155.
[19] 李胜祥. 松辽盆地地质演化史与砂岩型铀矿找矿方向研究[D].北京:核工业北京地质研究院,2002:114-115.
Li S X.Geological Evolution of Songliao Basin and Prospecting Direction for Sandstone Type Uranium Deposits[D].Beijing:Beijing Institute of Geology for Nuclear Industry,2002:114-115.
[20] 罗毅,何中波,马汉峰,等.松辽盆地钱家店砂岩型铀矿成矿地质特征[J].矿床地质,2012,31(2):391-400.
Luo Y,He Z B,Ma H F,et al.Metallogenic characteristics of Qianjiadian sandstone uranium deposit in Songliao basin[J].Mineral Deposits,2012,31(2):391-400.