Dissertation > Excellent graduate degree dissertation topics show

Application on Forword and Inversion of Gravity Anomalies with 2D Fault Model

Author: HeQinE
Tutor: LiQingChun
School: Chang'an University
Course: Management of land resources
Keywords: Gravity anomaly Fault model Inversion Rift basin
CLC: P631.1
Type: Master's thesis
Year: 2008
Downloads: 89
Quote: 0
Read: Download Dissertation

Abstract


Gravity method is one of important geological applications are mainly based on tracking changes in gravity anomalies and density structure of the border. This paper studies a gravity inversion method , you can export the configuration parameters of the fault . By the density distribution and gravity anomalies to invert the media faulted section or structure changes . Application of second degree body tilt forward faults formula to calculate any angle and the upper and lower depth of the buried fault models of different gravity anomaly . Gravity anomalies on the transformation process , the completion of the quantitative identification of fault structures are different. The use of previous results and methods of this paper compares the forward , indicating that this method is reasonable. Tomographic inversion using the ridge back to the parameters of the model , and in the fitting process of constantly improving the parameters of the fault structure inversion accuracy. In the inversion model, four different models were used , suggesting that there is no area of ??regional background field and background field has little effect on the inversion parameters ; does not distinguish whether the area in the background field, variable density and constant density parameter inversion are quite different , especially in the initial value of the fit function and results illustrate the variable density decay rate is faster than the constant density ; analysis theory and gravity anomalies observed gravity anomalies and errors , according to the information on the error in the allowable range . In the basin of existing shallow seismic and drilling data is mainly based on the reference weight, and magnetic data, combined with the new generation of depth maps and Quaternary tectonic depth chart, Yuncheng faulted structural characteristics , tectonic zoning and activities fracture characteristics were analyzed. Shanxi Yuncheng discussed rift tectonic fracture distribution characteristics of shallow rift basin basement structure , active faults within the basin characteristics and density distribution of Yuncheng Basin states. Using two densities - depth model and interpret gravity anomalies Yuncheng basin . Through two densities - depth model comparison showed that variable density model parabolic density model to interpret the results more in line with the local geological conditions ; gravity anomaly from a theoretical model and observed gravity anomalies fit the situation , the fault convergence of morphological parameters , Statistics show that the number of iterations , interpretation of the results are reliable.

Related Dissertations

  1. Attitude Control Law Design Based on Blended Lateral Jets and Aerodynamic Control,V249.1
  2. Research of Fault Injection for a Distributed System,TP338.8
  3. Research on Control Method of Moving-Mass and Lateral Thrust Combined Missile,TJ765
  4. Optical Properties of Chlorphyll-a in Reservoir Water and Its Concentration Inversion Models by Remote Sensing,S127
  5. Remote sensing data processing grid platform design and initial implementation,TP79
  6. Stress distribution law FLAC 3D simulation study,TU452
  7. The Application of STIR-FLAIR and T2W-SPIR for Diagnosing the Orbital Lesions: a Contrast Study,R777
  8. The Design and Implementation of the consultancy enterprise project management system,TP311.52
  9. Study and Application of Canopy BRDF Model,TP79
  10. CAN communication wheelchair robot based inversion control,TP242
  11. Excite polarization method tunnel engineering geological exploration Imaging Method research,U452.11
  12. Inversion in the small smart bombs BTT Controller Design Research,TJ414
  13. Based on robust dynamic inversion controller design small smart bombs,TJ414
  14. Lacustrine soft soil physical and mechanical properties and the creep characteristics of,U212.22
  15. Apple Brown Spot of Hhyperspectral Remote Sensing Estimation Study,S436.611
  16. An Empircal Study on the Effects of Focus-On-Form Instruction Upon the Acquisition of English Partial Inversion,H319.3
  17. Study of the Elastic Parameters Inversion Base on Improved Immune Algorithm,P631.4
  18. A Study on Atypical Magnetic Anomaly Interpretation in Deep Prospecting of Handan-Xingtai Area,P631.2
  19. Study on the Inversion Algorithm of Nuclear Magnetic Resonance Transverse-relaxation Distribution,P631.81
  20. Research on the Refining Methods of Gravity Anomaly,P312.1
  21. Study on the Formation Mechanism of Typical Advection Fog Occurred Over the Yellow Sea.,P732

CLC: > Astronomy,Earth Sciences > Geology > Geology, mineral prospecting and exploration > Geophysical exploration > Gravity exploration
© 2012 www.DissertationTopic.Net  Mobile