地震波를 利用한 南韓의 地殼構造 硏究

• 영문명: A Study on the Crustal Structure of South Korea by using Seismic Waves
• 발행기관: 대한자원환경지질학회
• 저자명: Sang Jo Kim(金尙照) So Gu Kim(金昭九)
• 간행물 정보: 『자원환경지질』16권 1호, 51~61쪽, 전체 11쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1983.03.30

영문 초록

By using local earthquake data, the Korean crust model and travel-time tables were determined. The upper crustal earthquakes (Hongsung event and Ssanggyesa event) were considered as auxiliary information, and the lower crustal earthquakes (Uljin event and Pohang event) played an important role in determining model parameters. The possible existence of Low Velocity Layer (LVL) in the upper mantle was suggested by discrepancy in the arrival times of Sariwon earthquake which occurred below Moho discontinuity. Computer program for the determination of the model parameters was developed in order to screened out the optimum parameters by comparing the travel times of observed data with theoretical ones. We found that the discontinuities of Conrad, Moho, and upper and lower boundaries of LVL have their depth of 15, 32, 55 and 75 Km, respectively. The velocities of P-and S-wave in the layers between those discontinities were found to be (1) 5.98, 3.40 Km/sec (2) 6.38, 3.79 Km/sec (3) 7.95, 4.58 Km/sec (4) unknown (5) 8.73, 5.05 Km/sec, respectively from the top layer. Travel-time tables were also computed for the inter-local earthquakes which have their direct wave paths above the LVL.

목차

Abstract

1. 序論

2. 理論的 背景

3. 地震觀測資料의 解析

4. Model의 決定

5. 地震波의 低速度層(Low Velocity Layer)

6. 地震波의 走行時間(Travel-Time)

7. 結論

參考文獻