沉积与特提斯地质
沉積與特提斯地質
침적여특제사지질
SEDIMENTARY GEOLOGY AND TETHYAN GEOLOGY
2014年
1期
55-60
,共6页
杜默%邱余波%陈文彬%张占峰%刘俊平
杜默%邱餘波%陳文彬%張佔峰%劉俊平
두묵%구여파%진문빈%장점봉%류준평
伊犁盆地%西山窑组下段%砂岩型铀矿%铀成矿
伊犛盆地%西山窯組下段%砂巖型鈾礦%鈾成礦
이리분지%서산요조하단%사암형유광%유성광
Yili Basin%lower member of the Xishanyao Formation%sandstone-type uranium deposit%uranium mineralization
本文初步研究了扎吉斯坦北部砂体的发育特征与铀成矿的关系。通过对研究区单井剖面、联井剖面以及平面上砂体发育情况的研究与分析,探讨砂体对铀矿体的控制与影响。研究表明,铀矿化发生、发育于砂体厚度相对稳定,粒度较粗,孔隙度、渗透率较好的地段。砂体构形变化的部位是成矿的有利部位,即砂体厚度由厚变薄的过渡地段有利于铀矿的富集。
本文初步研究瞭扎吉斯坦北部砂體的髮育特徵與鈾成礦的關繫。通過對研究區單井剖麵、聯井剖麵以及平麵上砂體髮育情況的研究與分析,探討砂體對鈾礦體的控製與影響。研究錶明,鈾礦化髮生、髮育于砂體厚度相對穩定,粒度較粗,孔隙度、滲透率較好的地段。砂體構形變化的部位是成礦的有利部位,即砂體厚度由厚變薄的過渡地段有利于鈾礦的富集。
본문초보연구료찰길사탄북부사체적발육특정여유성광적관계。통과대연구구단정부면、련정부면이급평면상사체발육정황적연구여분석,탐토사체대유광체적공제여영향。연구표명,유광화발생、발육우사체후도상대은정,립도교조,공극도、삼투솔교호적지단。사체구형변화적부위시성광적유리부위,즉사체후도유후변박적과도지단유리우유광적부집。
In the light of a single-well section and a well-tie section and spatial distribution of the sandstones,the present paper focuses on the relationship between the sandstone development and uranium mineralization,and controls and effects of the sandstones on the uranium orebodies in the lower member of the Xishanyao Formation in the northern part of the Zhajisitan area,Yili Basin. The results of research in this study show that the uranium mineralization occurs in the areas with stable thickness,coarser grain sizes and well-developed porosity and permeability of the sandstones. The zones with variable sandstone configurations,i. e. ,the transitional parts where the sandbodies are thining out are believed to be the favourable zones for the uranium mineralization.