胶莱盆地东缘早白垩世莱阳群沉积序列及岩相古地理
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摘要
胶莱盆地东缘早白垩世早期莱阳群沉积体现了湖盆由开始形成—鼎盛—萎缩消亡的全过程,发育由冲洪积相—湖相—三角洲相—河流相沉积的完整序列,且由东至西,由湖相到河流相逐渐过渡;古水流方向显示莱阳期盆地中心位于朱吴断裂、海阳断裂带之间,以断裂带为界,以西水流方向大致为由NW至SE向,以东水流方向则为由SE至NW向;早白垩世早期莱阳期盆地的形成与演化明显受区域性牟(平)-即(墨)断裂带活动所控制。
The sedimentary of Laiyang group of early Cretaceous in eastern Jiaolai basin reflects the evolution of the lake basin from forming, prospering, shrinking to vanishing. The complete sequence of alluvial-lacustrine-delta-fluvial facies deposits developed, and gradually transited from lake facies to fluvial facies from east to west. As showed by the direction of paleocurrent, the center of Laiyang basin is located between Zhuwu fault and Haiyang fault zone. The fault zone is the boundary, the direction of west flow is roughly from NW to SE, and the direction of east flow is from SE to NW. The formation and evolution of Yangshi basin are obviously controlled by regional activity of Mouping-Jimo fault belt.
The sedimentary of Laiyang group of early Cretaceous in eastern Jiaolai basin reflects the evolution of the lake basin from forming, prospering, shrinking to vanishing. The complete sequence of alluvial-lacustrine-delta-fluvial facies deposits developed, and gradually transited from lake facies to fluvial facies from east to west. As showed by the direction of paleocurrent, the center of Laiyang basin is located between Zhuwu fault and Haiyang fault zone. The fault zone is the boundary, the direction of west flow is roughly from NW to SE, and the direction of east flow is from SE to NW. The formation and evolution of Yangshi basin are obviously controlled by regional activity of Mouping-Jimo fault belt.
引文
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[2] 顾德林,张长厚,陈建强.胶北隆起北部地质构造特征及其演化[M].武汉:地质大学出版社,1996:5-22.
[3] 李守军,谢传礼.山东莱阳盆地莱阳组时代讨论[J].地层学,1997,20(3):233-238.
[4] 唐华风,程日辉,王璞珺,等.走滑拉分盆地层序构成特征——以胶莱盆地莱阳群为例[J].沉积与特提斯地质,2006,26(3):31-36.
[5] 任凤楼,张岳桥,邱连贵,等.胶莱盆地白垩纪构造应力场与转换机制[J].大地构造与成矿学,2007,31(2):157-167.
[6] 任凤楼,柳忠泉,邱连贵,等.胶莱盆地莱阳期原型盆地恢复[J].沉积学报,2008,26(2):221-233.
[7] 张岳桥,李金良,张田,等.胶莱盆地及其邻区白垩纪—古新世沉积构造演化历史及其区域动力学意义[J].地质学报,2008,82(9):1229-1258.
[8] 姜在兴,熊继辉,王留奇,等.胶莱盆地下白垩统莱阳组沉积作用和沉积演化[J].石油大学学报,1993,17(2):8-16.
[9] 张增奇,刘明渭,宋志勇,等.山东省岩石地层[M].北京:中国地质大学出版社,1996:15-32.
[10] 吴智平,李凌,李伟,等.胶莱盆地莱阳期原型盆地的沉积格局及有利油气勘探区选择[J].大地构造与成矿学,2004,28(3):330-337.
[11] 秦杰,陶有兵,任天龙,等.莱阳地区中生代陆相地层多重地层划分及沉积演化[A]//第九届华东六省一市地学科技论坛[C].杭州:浙江省科学技术协会,2011:28-33.
[12] 朱学强,杨仕鹏,任天龙,等.牟平-即墨断裂带即墨段白垩纪古构造应力场特征[J].山东国土资源,2017,33(11):15-22.