Abstract：In order to systematically study the evolution characteristics of Silurian- -Devonian sedimentary environment in Keping area, the authors analyzed the sandstone in detail through sedimentary, stratigraphic and grain size analysis. Four sedimentary environments, including river-controlled delta, tidal-controlled delta, tidal flat and coast, were identified, with their own unique grain-size characteristics and probability cumulative curves. River-controlled delta is featured with typical two stages, hop-suspension transition and low-skew multistage. Fan delta is featured with the upper arch arc. Tidal-controlled delta is featured with typical three stages and multistage. Coastal area is feotured with high oblique two stages and high oblique multistage. The sedimentary environment gradually changed from wet river-controlled delta to dry coastal deposit from Silurian to Devonian, with the increasing maturity of sandstone. This indicates that Keping area was gradually away from provenance area and in the background of structural stability.
阎琨, 马伟, 柳晓丹, 李娜. 新疆柯坪地区志留系—泥盆系砂岩粒度分布特征及沉积环境[J]. 中国地质调查, 2020, 7(4): 76-84.
YAN Kun, MA Wei, LIU Xiaodan, LI Na. Grain-size distribution characteristics and sedimentary environment of Silurian- -Devonian sandstone in Keping area of Xinjiang Province. , 2020, 7(4): 76-84.
[1] 成都地质学院陕北队.沉积物粒度分析及其应用[M].北京:地质出版社,1978. [2] 赵澄林,朱筱敏.沉积岩石学[M].3版.北京:石油工业出版社,2001. [3] 赵鲁阳,吕大炜,刘海燕,等.安徽巢北地区五通组沉积环境分析[J].沉积学报,2015,33(3):470-479. [4] 于涛,于江涛,孟宁宁,等.鄂尔多斯盆地油房庄延长组长7油层组沉积环境的粒度特征研究[J].中国科技论文,2017,12(3):255-262. [5] 李先平,于兴河,李胜利,等.冀中坳陷深县凹陷古近系沙河街组沙一段沉积相特征[J].古地理学报,2011,13(3):262-270. [6] 张旻旻,张梅生,李晓波,等.辽西兴城地区上古生界沉积环境识别[J].沉积学报,2015,33(6):1159-1169. [7] 王铸坤,李宇志,操应长,等.渤海湾盆地东营凹陷永北地区沙河街组三段砂砾岩粒度概率累积曲线特征及沉积环境意义[J].石油与天然气地质,2017,38(2):230-240. [8] 张翔,田景春,彭军.塔里木盆地下志留统塔塔埃尔塔格组沉积体系及沉积模式[J].沉积学报,2006,24(3):370-377. [9] 张翔,田景春,彭军.塔里木盆地志留—泥盆纪岩相古地理及时空演化特征研究[J].沉积学报,2008,26(5):762-771. [10] 邢凤存,李祯,李思田.柯坪露头区早志留世三角洲及碎屑海岸沉积[J].中国地质,2011,38(4):996-1007. [11] 张惠良,王招明,张荣虎,等.柯坪地区下志留统储层性质及控制因素[J].海相油气地质,2005,10(2):23-30. [12] 楼仁兴,董清水,聂辉,等.塔里木盆地巴楚—麦盖提地区志留—泥盆纪岩相古地理特征及油气勘探前景[J].石油实验地质,2011,33(6):580-586. [13] 邢凤存,白振瑞,李祯,等.塔里木盆地早、中志留世沉积序列及其对构造-海平面变化的响应:以柯坪露头区为例[J].地球科学,2011,36(3):541-554. [14] 白振瑞,邢凤存,李会宪.柯坪露头区柯坪塔格组河流作用为主的三角洲沉积特征及其油气勘探意义[J].石油与天然气地质,2012,33(2):217-224. [15] 贾进华,张宝民,朱世海,等.塔里木盆地志留纪地层、沉积特征与岩相古地理[J].古地理学报,2006,8(3):339-352. [16] 张良臣,刘德权,王胡标,等.中国新疆优势金属矿产成矿规律[M].北京:地质出版社,2006:1-513. [17] 孟广路,孟彦军,王斌.中国—吉尔吉斯斯坦天山构造格架与演化[J].中国地质调查,2018,5(1):28-36. [18] Friedman G M.Comparison of moment measures for sieving and thin-section data in sedimentary petrological studies[J].J Sediment Petrol,1962,32(1):15-25. [19] Fork R L,Ward W C.Brazos river bar:A study in the significance of grain size parameters[J].J Sediment Petrol,1957,27(1):3-26. [20] Fork R L.A review of grain-size parameters[J].Sedimentology,1966,6(2):73-93. [21] Friedman G M.Dynamic processes and statistical parameters compared for size frequency distribution of beach and river sands[J].J Sediment Petrol,1967,37(2):327-354. [22] Sahu B K.Depositional mechanisms from the size analysis of clastic sediments[J].J Sediment Petrol,1964,34(1):73-83. [23] Visher G S.Grain size distributions and depositional processes[J].J Sediment Res,1969,39(3):1074-1106. [24] Visher G S.Use of vertical profile in environmental reconstruction[J].AAPG Bull,1965,49(1):41-61.
2020, Vol. 7 
