臺灣博碩士論文加值系統

在本研究中，我利用徑向接收函數和觸發型地震之定位探討台灣地區之地殼構造。從結果顯示，台灣地區的莫荷面深度分布介於21至46公里間。在台灣南部，歐亞大陸板塊大約是以近30度的傾角向東傾斜。此外，本研究也發現在台灣南部會有地震受到2004和2005二次的南亞大地震所觸發。

In order to provide some good references of the Taiwan orogeny process, I performed systematically surveys to investigate the crustal structure of Taiwan area. I utilized the H-k stacking method which is suitable to one-layer crust to map variation of Moho (see chapter 3) and improved it to be suitable for three-layer crust (see chapter 2). Besides, I illuminated the crustal profile across the Chaochou fault (see chapter 4), a major tectonic thrust fault. In chapter 5 and 6, I revealed some slip phenomena of Chaochou fault through detecting low-frequency earthquake triggered by 2005 Nias and 2004 Sumatra earthquakes in southern Taiwan.

Chapter 1-- Introduction 1
Chapter 2-- Receiver Functions for Three-Layer Media 3
2.1. Introduction 3
2.2. Method 4
2.3. Data Processing and Results 8
2.3.1 Identifying phases on RRF profiles 9
2.3.2 Finding depth and k value of a layered crust 10
2.4. Discussion and Conclusion 11
2.5. References 14
2.6. Tables 16
2.7. Figures 19
Chapter 3-- Variation of Moho Depth in Taiwan from Teleseismic Receiver Functions and Its Tectonic Implications 25
3.1. Introduction 26
3.2. Method and Data Analysis 28
3.3. Results 30
3.3.1 Moho depth in west of Taiwan 30
3.3.2 Moho depth change near the Longitude Valley Collision Boundary 31
3.3.3 Variation of Moho depth in Taiwan area 32
3.4. Discussion and Tectonic Interpretations 33
3.4.1 Shallow Moho depth in the western coastal plain 33
3.4.2 Profile A-A’ 34
3.4.3 Profile B-B’ and C-C’ 35
3.4.4 Profile D-D’ 36
3.5. Conclusions 37
3.6. References 40
3.7. Tables 45
3.9. Figures 49
Chapter 4-- Significant Crustal Structural Variation across the Chaochou Fault, Southern Taiwan: New Tectonic Implications for Convergent Plate Boundary 68
4.1. Introduction 68
4.2. Method and Data Analysis 70
4.3. Results and Discussion 72
4.3.1 Moho depth variation 72
4.3.2 Crustal structure across the CF 72
4.4. Conclusion 74
4.5. References 76
4.6.Figures 79
Chapter 5-- Detecting Low-Frequency Earthquakes within Non-Volcanic Tremor in Southern Taiwan Triggered by the 2005 Mw8.6 Nias Earthquake 84
5.1. Introduction 84
5.2. Data and Method 85
5.3. Result 88
5.4. Interpretation 89
5.5. Discussion and Conclusion 90
5.6. References 93
5.7. Figures 96
5.8. Auxiliary material 100
Chpater 6 -- Repeated Triggered Low-Frequency Earthquakes in Southern Taiwan 110
6.1 Introduction 110
6.2 Data and Method 111
6.3 Result and Discussion 113
6.4 Conclusion 115
6.5 References 117
6.6 Figures 120
6.7 Auxiliary material 125
Chpater 7-- Conclusions 127
Reference 129

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