准噶尔盆地二叠系上乌尔禾组退覆式扇(辫状河)三角洲前缘-滩坝复合砂砾岩沉积特征及控制因素*
郭文建1, 郭瑞婧2, 唐勇1, 纪友亮2, 马铮涛2, 刘笑语2, 梁涛2, 马玉龙2

Sedimentary characteristics,controlling factors and genesis of retrogradational fan(braided)delta front-beach bar composite gravel body in the Permian Upper Urho Formation in Junggar Basin
GUO Wenjian1, GUO Ruijing2, TANG Yong1, JI Youliang2, MA Zhengtao2, LIU Xiaoyu2, LIANG Tao2, MA Yulong2
准噶尔盆地上乌尔禾组扇三角洲平原亚相岩心特征 a—K40井,3340 m,褐色块状中砾岩; b—C45井,2952 m,褐色砂质细砾岩; c—J42井,2834 m,褐色砾岩,砾石含量多,且砾石粗大,杂乱堆积; d—J205井,3920 m,灰白色砾质砂岩,砾石含量少; e—M8井,3720 m,褐色砾岩,混杂堆积; f—M8井,3720 m,棕色泥岩,泥裂