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1、不同构造背景下裂陷盆地的结构差异裂陷盆地不同发育阶段的结构变化裂陷盆地控边断裂和控凹断裂的展布和发展转换带对裂陷盆地结构、沉积和地层的制约裂陷盆地富烃凹陷中圈闭构造样式转换带（transfer zone）和调节带（ accommodation zone）是裂陷盆地的典 型结构特征之一，具有分割、过渡一 级构造单元及其内部结构的功能。转换带的概念是Dahlstrtom, C.D.A (1970)首次提出，C.K.Morley(1990) 提出伸展地区转换带的分类。在伸展 型盆地中，转换带是指为保持区域伸 展应变守恒而产生的伸展变形构造转 接体系。Different types of fault-
2、to-fault transfer zones (stippled areas) in the mapped parts of the Suez rift, Cairo- Suez area, and the northwestern Red Sea. (A) Relay ramp; (B) linking transfer fault (TF); (C) en echelon step faulting; (D) en echelon horst-graben faulting; (E) tilted fault blocks; (F) zigzag fault array. Faults
3、drawn in heavy lines are those linked by the transfer zone.（Adel R. Moustafa,2002）Kinematic relationship between the right-lateral oblique-slip movement on the east-westoriented deep-seated faults underlying the en echelon fault belts of the Cairo-Suez district and the dip-slip normal movement on th
4、e linked, northwest-southeastoriented faults. Block diagrams represent the deep-seated structures, whereas the maps show the structures at the top Eocene surface. (A) Linked faults have the same polarity. Triangle drawn on the front face shows the resolution of the slip vector (hypotenuse) of the ha
5、nging block of the transfer fault into strike-slip and dip-slip components. (B) Linked faults have opposite polarity. Simplified structural map of the Suez rift and northwestern Red Sea region showing three H-H TZ Between oppositely tilted half grabens. Map-view evolution of the Lokichar fault, nort
6、hern Kenya. The fault zone appears to have evolved by amalgamation of two initially separate faults in the southern part of the fault zone, the associated basins joined, and half grabens developed during the Paleogene and early Miocene. The northern part of the fault zone developed during the late M
7、iocenePliocene and joined with the largely inactive Lokichar basin segment of the fault. The structure map is based on seismic reflection data presented in Morley et al. (1999a).Conceptualmodel of a narrow rift system showing an along-strike change in the half-graben polarity. The possible variation
8、s in synrift sedimentation patterns and sediment input points are shown. Suez riftAmgad I. Younes ，2002地堑半地堑 地堑半地堑地堑地堑半地堑半地堑半地堑半地堑惠州凹陷文昌组等厚图文昌组：转换带分割的张扭性斜列式裂陷结构半地堑 半地堑半地堑地堑C.惠州转换带分类惠州转换带分类表复合型半地堑-地堑XJ23洼XJ24洼XJ24洼HZ26洼HZ26洼HZ21洼HZ08洼HZ10洼HZ10洼陆西构造单元地堑-地堑HZ21洼HZ23洼 断层-断层型同向叠覆HZ08断层HZ13断层反向叠覆XJ23S断层XJ
9、30断层反向共线XJ17断层HZ13断层背向平行惠中地垒、惠东地垒复合型转换带：分割构造单元内 次洼的横向古隆起带。断层-断层型：物源方向，可能的 砂体发育带。132不同构造背景下裂陷盆地的结构差异裂陷盆地不同发育阶段的结构变化裂陷盆地控边断裂和控凹断裂的展布和发展转换带对裂陷盆地结构、沉积和地层的制约裂陷盆地富烃凹陷中圈闭构造样式Formation of typical oil field in the Gulf of Suez(OConnor and Kanes, 1984)胜利油田 勘探形势图缓坡带潜山披覆带洼陷带中央背斜带洼陷带陡坡带地层不整合油藏 断块 油藏 构造-岩性油藏 岩性油藏
10、 塑性拱张背斜 油藏 滚动背斜油藏 构造-地层超覆油藏 潜 山类油藏 裂谷圈闭及油气藏示意图断裂坡折带丘陵湖平面山间水道深水浊积扇补给水道近岸水下扇“断裂坡折带” 控制“低位扇”的发育。断 裂 坡 折 带 低 位 扇 成 因 关 系 模 式缓坡带砂岩油气藏勘探莱70王27王11王70王53王68牛25牛11梁83梁60梁68梁家楼体砂中1 中2中3中4中5中6沙 三 下沙 三 上洼陷带浊积砂岩勘探（东营三角洲及浊积砂岩模式）梁家楼体砂富林富烃洼陷勘探垦76-X1垦东232孤南46孤北210垦东地区孤北108渤78-斜1垦东233渤701孤洼 南陷洼陷林富孤南洼陷有 两套油气源 层，已在 不同层
11、位探 明了油气储量沙三段源层提供了 富斜11断块、垦91、 垦153、垦利潜 山古生界油气； 中部无油源层， 由孤南洼陷通过 断层提供的油气， 形成垦77井沙一 东营组 的油藏。该区块找到了 几块油气田Bruce Trudgill, et al, 2002 Introduction to the structure and stratigraphy of rift systems AAPG Bulletin, v. 86, no. 6 (June 2002), pp. 9319331、裂谷演化的整个过程中对结构起控制作用的断层研究的深化：断层生长和连接方式。对构造、沉积、地层三者及相互关系的研究具有十分重要的意义，三者间的量化研究是重要的方向。 2、深化物源通道的演化与断裂作用之间的精确关系。 3、评价裂谷盆地充填过程中的古气候和古地貌。 4、更好地了解裂谷盆地中含油气系统的主控因素。 5、更好地了解盆地结构与油气远景间的关系，特别是构造与沉积间的相互关系。 基底卷入型构造样式张性断块 盖层滑脱型构造样式滑脱型正断层组合
