1) half-graben structure
半地堑构造
2) Normal graben tectonics
正地堑构造
3) Tensional graben
张性地堑构造
4) half-graben
半地堑
1.
New evidences for the presence of the NS-trending extensional structures in northwestern China: An example from the Early Cretaceous half-graben fault depressions in Jiuquan, Gansu;
中国西北部南北向伸展构造存在的新证据——酒泉早白垩世半地堑断陷成因初探
2.
Baiyun Sag was composed of a series of half-grabens controlled by the faults in the Wenchang Age of Eocene Epoch, and the sediment of Wenchang Formation was controlled by faults obviously in this period.
利用新采集的长电缆地震资料及地质、测井和地化资料研究表明,白云凹陷在始新世文昌期由一系列断层控制的半地堑组成,断裂对文昌组沉积的控制作用明显,但晚期白云凹陷的持续沉降以及巨厚的渐新统—中新统地层沉积,掩盖了早期半地堑的形态。
3.
Extensional basin includes mainly graben and half-graben controlled by low detachment.
大多数地堑和半地堑是由深度近水平的拆离正断层控制的 。
5) half-horst
半地堑
1.
Asymmetrically alternant movement of half-horst in Muglad Basin is accomplished by accommodation zone.
穆格莱德盆地半地堑不对称地交替变化是通过调节带调节着其变形或位移完成的,通过对调节带的类型、构造样式、分布特点等的探讨,指出了调节带为长期继承性发育的构造,往往控制砂体分布,邻近生油凹陷是有利的油气运移指向地带,成为油气勘探的有利目标。
6) half graben
半地堑
1.
In the eastern part of Bozhong sag, sedimentation of rifting stage was controlled by NE striking fault system(Tanlu fault system)which was characterized by an echelon pattern, and three major half grabens were formed.
雁行排列的NE向断裂将其分隔成3个主半地堑。
2.
The faults develop in this area with several orders, and extensional faulted blocks (half graben and half horst) are the main type of structural style.
认为惠民凹陷的总体构造特征是正断层发育 ,构造类型以伸展断块构造 (半地堑和半地垒 )为主。
3.
Based on analysis of tectonic evolution and sedimentary facies, prototype basin in that period was recognized as an extending half graben that was faulted in the north and onlap.
该文通过分析构造演化剖面沉积相图,认为孔店期原型盆地为北断南超的伸展半地堑,盆地长轴方向整体为近东西向,主要的控制性断层是北东东向的宁南断层、无南断层西段和陈南断层西段,北西向的陈南断层东段、无南断层东段和石村断层有重要影响。
补充资料：地堑
| 地堑 graben 地壳中被两侧倾向相反的正（或逆）断层所界限而中间断盘下掉的槽形断块构造。是一种长条形的断陷盆地，纵向延伸可达数百千米 ；仅在一侧为断层所限的断陷称半地堑。若同时发育着一系列走向大致平行但倾向依次相反的正（或逆）断层时，则地堑与地垒相间排列形成盆岭构造。地堑的形成与地壳的水平拉伸作用有关，在背斜的轴部也常发育地堑。地堑常与沉积矿产，尤其是煤和油气藏等密切相关。有名的地堑有欧洲的莱因地堑、中国的汾渭地堑等。 |
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参考词条