福建永安盆地显生宇构造层序地层及沉积模式
福建永安盆地显生宇构造层序地层及沉积模式
永安盆地是位于华夏板块上一个多旋回叠合的沉积盆地，显生宇发育齐全，开展构造层序地层及沉积模式研究是研究华夏板块沉积构造历史的有效途径，且可作为认识中扬子地区沉积构造演化的辅助手段，为湘鄂西页岩气勘探提供参考信息。研究结果认为：永安盆地显生宇可以划分出8个构造层序（TSQ1、TSQ2、TSQ3、TSQ4、TSQ5、TSQ6、TSQ7、TSQ8），均受控于区域性构造运动。TSQ1受控于加里东构造运动，TSQ2、TSQ3、TSQ4受控于海西构造运动，TSQ5受控于印支运动，TSQ6、TSQ7、TSQ8受控于燕山构造运动。显生宙以来，永安盆地经历了被动大陆边缘浅海陆棚碎屑岩—深水滞留盆地复理石沉积模式，滨浅海碎屑岩滨岸—台地—潮坪模式，前陆盆地河流—湖泊沉积模式，坳陷盆地河流—湖泊沉积模式，坳陷盆地火山—河流—湖泊沉积模式以及断陷盆地河流—冲积扇—湖泊沉积模式的历史演化，记录了华夏板块复杂、完整的构造历史。
图 1
永安盆地地质构造简图
Figure 1.
Geological structure diagram of Yong'an Basin
图 2
永安盆地地质构造图
Figure 2.
Geological structure map of Yong'an Basin
图 3
永安盆地地形剖面图
Figure 3.
Horizontal section of Yong'an Basin
图 4
永安盆地显生宇综合地层柱状图
Figure 4.
Comprehensive stratigraphic histogram of Phanerozoic in Yong'an Basin
图 5
永安盆地地层间不整合面及MFS分界线
Figure 5.
The unconformity surface and MFS boundary between strata in Yong'an Basin
图 6
永安盆地寒武纪被动大陆边缘浅海陆棚碎屑岩沉积模式
Figure 6.
Sedimentary model of shallow marine shelf clastic rocks in the Cambrian passive continental margin of the Yong'an Basin
图 7
永安盆地奥陶纪滞留盆地复理石沉积模式
Figure 7.
Sedimentary model of flysch in the Ordovician detention basin of Yong'an Basin
图 8
永安盆地奥陶系—二叠系地层特征
Figure 8.
Characteristics of the Ordovician-Permian strata in the Yong'an Basin
图 9
永安盆地志留纪抬升模式
Figure 9.
Silurian uplift model of Yong'an Basin
图 10
永安盆地泥盆纪滨岸沉积模式
Figure 10.
Sedimentary model of the Devonian shore in the Yong'an Basin
图 11
永安盆地石炭纪—早二叠世碳酸盐台地沉积模式
Figure 11.
Carbonate platform sedimentary model in Yong'an Basin from Carboniferous to Early Permian
图 12
永安盆地中二叠世—早三叠世碎屑岩台地—潮坪沉积模式
Figure 12.
Sedimentary model of clastic platform-tidal flat in the Yong'an Basin from the Middle Permian to Early Triassic
图 13
永安盆地晚三叠世前陆盆地河流—湖泊沉积模式
Figure 13.
Sedimentary model of river-lake foreland basin of Yong'an Basin in the Late Triassic
图 14
永安盆地三叠系—白垩系地层特征
Figure 14.
Stratigraphic characteristics of Triassic-Cretaceous in Yong'an Basin
图 15
永安盆地侏罗纪坳陷盆地河流—湖泊沉积模式
Figure 15.
Sedimentary model of river-lake depression basin of Jurassic in Yong'an Basin
图 16
永安盆地早白垩世坳陷盆地河流—湖泊沉积模式
Figure 16.
Sedimentary model of rivers-lakes depression basin of Early Cretaceous in Yong'an Basin
图 17
永安盆地晚白垩世断陷盆地冲积扇—湖泊沉积沉积模式
Figure 17.
Sedimentary model of alluvial fans-lakes fault basin of Late Cretaceous in Yong'an Basin
图 18
湖南保靖页岩气成藏有利区分布图
Figure 18.
Distribution of favorable areas for shale gas accumulation in Baojing, Hunan Province