Dissertation > Excellent graduate degree dissertation topics show

Filling Evolution Analysis of Composite Basin with Shallow Basin and Multi-sag

Author: LiuZheng
Tutor: ZhangShangFeng
School: Yangtze University
Course: Mineralogy,petrology, Mineral Deposit Geology
Keywords: Jiangling depression Yuyang group Shashi group sequencestratigraphy sedimentary system filling evolution
CLC: P548
Type: Master's thesis
Year: 2013
Downloads: 15
Quote: 0
Read: Download Dissertation

Abstract


Jiangling depression is the largest secondary tectonic unit in Jianghan basin, which developed fault sag sedimentary depression of cretaceous-tertiary on the bottom of precretaceous with near ten thousand meters continental clastic rock in channel-delta-lacustrine sedimentary systems. This paper use core, well logging, mud logging and seismic data, under the theory guidance of sequence stratigraphy, sedimentary and reservoir geology with the way of composition of geology and seismic, whole and regional searching, mainly rely on tectonic study and sequence analysis to learn tectonic and filling evolution character of Jiangling depression systematically with analyzing tectonic control function to sedimentary filling. Achievement comprise following:The base tectonic in Jiangling depression affected by Qingling and Xuefeng composite tectonic system, which developed northeast,northwest and near east-west three direction structures controlling evolution of basin forming and bringing complex landform northeast fault sag, near east-west sag and northwest. On the whole, Jiangling depression belong to sag. This depression went through fault-sag-drape three tectonic cycles and seven tectonic evolution parts in cretaceous, when faults developed and faults throw is shallow, through there are a lot of faults controlling sag but the fault parallel to long axis of depression is none,so composite tectonic pattern "shallow basin and multi-sag" formed in all.The sedimentary model, system types and characters of Jiangling depression are recognized. Channel, delta and lacustrine sedimentary system are main developed in searching area. On the whole, in the time of Yuyang group deposition, under the climate conditions of torridity,drought and windness, aeolian dune, alluvial plain and salt lake developed in area, while in time of Shashi group deposition, climate is still torridity, channels, delta and satl lake with few water recharge developed in searching area, and regional surface runoff water recharge area is easy to form freshwater river delta sediment.From the view of sedimentary evolution analysis in different time units of Shashi group, distribution of channel-delta sand has significant increase tendency and the main provenance(north of area) is recognized in Shashi deposition time. But it is not clear that salt lake and time have correlation which distributed cross pre-depression, different time has different distribution range.4.Jiangling depression comprises four sags, three processes and north-south slopes, all sags and processes have same attribute except that south part of Anjiacha sag belong to extrusion syncline. That is to say pre-tectonic pattern has multi-processes and multi-sags in fault sag times in Jiangling depression, every fault sag groove was not formed relatively independent lacustrine system but pre-lacutrine of Zhikou-Meihuaiqiao-Zifusi sag area, where is the depositional center in every time.

Related Dissertations

  1. Sedimentary Characteristics and Its Hydrogeological Significance of Jurassic Zhiluo Formation in the East of Ning Xia Province,P534.52
  2. Study of Sequence Palaeogeography in the Late Palaeozoic in Eastern North China,P531
  3. Sequence Stratigraphy and Paleogeography of Middle Permian-Later Permian in the Southern North China,P539.2
  4. Sequence Stratigraphy and Lithologic Trap Predication of Paleogene in North Slope of Bozhong Sag,P618.13
  5. Study on the Sequence Textures and Sediments Filling Features of the Triassic in the Platform Area of Tarim Basin,P618.13
  6. Devonian Reef Development and Distributional Characteristics in Youjiang Basin,P534.44
  7. Structual Evolution in Southwestern Ordos Basion and the Control of the Deposition,P546
  8. Ichnofabrics and Their Sedimentary Significance from the Jialingjiang Formation in Longmendong Section, Mount Emei, Sichuan Province, China,P512.2
  9. Research on Sedimentary System of Chang9-10 Oil-bearing Formations in North-west Ordos Basin,P618.13
  10. Reservoir Characteristic and Damage Mechanism Study of Xiashihezi Formation in Zhe South of Zichang Area, Ordos Basin,P618.13
  11. Sedimentary System and Coal Accumulating Pattern Study of Carboniferous-Permian in Zhengcun Exploration Area,P618.11
  12. Research on the Sedimentary System and Hydrocarbon Accumulation of E3s3 in the Middle Area of Dongying Depression,P618.13
  13. Research on Sedimentary System and Reservoir Characteristics of Fuyu Oil Layer in Qianguo South Area,P618.13
  14. The Sea Level Changes and Response of Sedimentary System on the ECS and YS Shelf after the Last Glacial Maxmium,P731.23
  15. Ordos basin yulin - yanan area Jurassic sedimentary system and main sand body research,P618.13
  16. The Research of Sedimentary System of the Triassic Yangchang Formation in the South of the Slope of Shanbei,P534.51
  17. Research on Sedimentary System, Sequence Stratigraphy, Reservoir Evaluation for Chang 8-6 Oil Beds of Yanchang Formation in Zhenyuan-Jingchuan Field, Ordos Basin,P618.13
  18. On the middle of the western Sichuan depression Triassic required four required five sections of sequence stratigraphy and sedimentary facies research,P539.2
  19. Sequence Stratigraphy and Reservoir Analysis of Silurian and Lower Kepingtage Formation of Ordovician in Western Manjiaer Depression, Tarim Basin,P539.2
  20. The Analysis of the Sedimentary System of the Fourth-Member of Quantou Group in the South of Songliao Basin,P611.22
  21. Research on the Sedimentary System of Zhiluo-Anding Formation in the Southern of the Ordos Basin,P512.2

CLC: > Astronomy,Earth Sciences > Geology > Structural Geology > Regional structural geology
© 2012 www.DissertationTopic.Net  Mobile