GENERAL CHARACTERISTICS OF THE MESOZOIC-CENOZOIC TECTONICS IN EASTERN CHINA
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摘要: 把中国东部中、新生界划分为6个构造-沉积旋回, 相应地发育6期构造运动主幕, 侏罗纪末幕运动是一场变格运动。进一步将研究区构造形变史划分为两个形变阶段和一个过渡阶段。两个构造形变阶段发育两种类型的沉积盆地、两种型式的构造体系, 它们之间存在着广泛的构造不整合, 显示二元结构即为中国东部中、新生代大地构造的基本特征。Abstract: In this paper, the author divided the Mesozoic-Cenozoic in eastern China into six tectonic-sedimentary cycles.The movement occurred in the Late Jurassic was a style-changed movement.In addition, the author further divided the tectonic deformation history of this region into two deformation phases (T-J) and one transitional phase (K1).During the two deformation phases, two types of basins and two tectonic systems developed.There exists extensive tectonic unconformity, which shows that the duel structures are basic characteristics of Mesozoic-Cenozoic geotectonics in eastern China.
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Key words:
- Eastern China /
- Mesozoic-Cenozoic /
- tectonic-sedimentary cycle /
- geotectonics /
- deformation phases /
- tectonic system
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图 1 四川盆地西部地区综合柱状图
(据中石化西南局，2000)
Figure 1. Comprehensive column map of western Sichuan Basin
图 2 楚雄盆地综合柱状图
(据童吉福修改，2002)
说明:陆相普家村、干海资、舍资组与海相T3不整合接触; 从构造-沉积旋回观点看普家村、干海资、舍资组应归J旋回; 楚雄盆地燕山旋回从一平浪煤系(普家村、干海资、舍资组)磨拉石堆积开始Figure 2. Comprehensive column map of Chuxiong Basin
图 4 江汉盆地综合柱状图
(据汪仕忠修改，2002)
说明:从构造-沉积观点看, 沙市组、新沟咀组应归属K2旋回; 江汉盆地晚燕山旋回于新沟咀组末结束Figure 4. Comprehensive column map of Jianghan Basin
图 5 四川盆地构造横剖面图——华夏系—中华夏系盆地剖面结构
(据张健，2002)
说明：须家河组已划归JS构造层Figure 5. The cross tectonic section of Sichuan Basin
图 7 江汉盆地构造横剖面图——新华夏系盆地剖面结构
(据汪仕忠修改，2002)
Figure 7. The cross tectonic sectin of Jianghan Basin
图 8 松辽盆地构造剖面图——新华夏系盆地剖面结构
(据林铁峰修改，2002)
说明J2K1已归属K1Figure 8. The cross tectonic section of Songliao Basin
图 9 华北盆地结构平面图(a)及剖面图(b)—新华夏盆地平面展布及剖面结构[6]
1—坳陷分界线; 2—断层线; 3—凸起; 4—凹陷; 5—古近系缺失线; 6—剖面位置
Figure 9. Sketch map of the cross tectonic section of North China Basin
图 10 龙门山造山带前缘彭县推覆构造剖面图
(据四川第二区调队，1994)
J2sh-沙溪庙组; J2zl-自流井组; J1x3-须家河组上段; J1x2-须家河组中段; J1x3-须家河组下段; P-二叠系; C-石炭系(根据构造-沉积旋回的观点华南T3x应归属J1x)Figure 10. Tectonic section of Longmenshan frontal nappe tectonics
图 11 下辽河盆地69.6测线地质解释剖面图—新华夏系盆地剖面结构
(据廖兴明等，1996)
N+Q—新近系—第四系; Ed—古近系东营组; Es1 —古近系沙河街组一段; Es2 —古近系沙河街组二段; Es3 —古近系沙河街组三段; Es4 —古近系沙河街组四段; Ef—古近系房身泡组; Mz—中生界; Pt2-3 —中、新元古界; Ar—太古宙Figure 11. Cross tectonic section of the Line 69. 6 in sub-Liaohe fault depression
图 12 东海盆地构造横剖面图———新华夏系盆地剖面结构
(据巩奎兴，2002)
Figure 12. The cross tectonic section of the East Sea Basin
图 13 珠江口盆地构造横剖面图———新华夏系盆地剖面结构
(据巩奎兴修改，2002)
Figure 13. The cross tectonic section of Zhujiangkou Basin
表 1 中国东部中生代、新生代主要陆相沉积盆地地层对比表
Table 1. Correlation of strata in the main Meso-Cenozoic continental sedimentary basins, easten China
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