Application of teleseismic tomography to the study of shallow structure beneath Shizigou in the western Qaidam basin

• 来源期刊: 地震学报（英文版）
• 学科: 地球科学
• 年，卷（期）: 2009,（2）
• 页码范围: 189-195
• 页数: 7页
• 分类号: P315.2
• 语种: 英文
• DOI: 10.1007/s11589-009-0189-9

摘要

Teleseismic body wave traveltime tomography is used to inverse the three-dimensional seismic velocity structure beneath Shizigou in the western Qaidam basin. The travel time are picked from the continuous observation data on a small seismic array of stations deployed during 2004-2007. The tomographic results obtained indicate that a NW-trending low velocity anomaly just beneath the target region insert northeastwards with a high dip angle, to the north, northeast and east of the low velocity anomaly, some high-velocity anomalies distribute with the same strike and coverage as those of Shizigou anticline.