松辽盆地北部下白垩统泉头组三、四段碳酸盐胶结物分布及其主控因素*
赵小庆1,2, 鲍志东1,2, 孟元林3, 刘宗飞1

Distribution of carbonate cements in the Members 3 and 4 of Lower Cretaceous Quantou Formation of northern Songliao Basin and its main controling factors
Zhao Xiaoqing1,2, Bao Zhidong1,2, Meng Yuanlin3, Liu Zongfei1
松辽盆地北部下白垩统泉头组四段碳酸盐胶结物显微照片 1—方解石充填斜长石粒内孔,树129井,1581.68 m,钙质长石岩屑细砂岩,正交光,×200;2—泥晶方解石充填粒间,杏11-51-丙242,1530.60 m,含钙细粒岩屑长石砂岩,正交光,×100;3—含铁白云石,徐11井,1459.99 m,细砂岩,单偏光,×200;4—菱铁矿,杜22井,1516.5 m,含钙砂岩,单偏光,×200