Slab‐like high velocity anomaly in the uppermost mantle beneath the Dabie‐Sulu Orogen
Slab‐like high velocity anomaly in the uppermost mantle beneath the Dabie‐Sulu Orogen
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DOI：
10.1029/2000gl012187
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发表时间：
2001-05
影响因子：
5.2
通讯作者：
P. Xu;Futian Liu;Qingchen Wang;B. Cong;Hui Chen
中科院分区：
文献类型：
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作者：
P. Xu;Futian Liu;Qingchen Wang;B. Cong;Hui Chen
利用地震层析成像技术研究了中国东部大别-苏鲁造山带的三维速度结构。获得了沿着30°-38 ° N、114°-122 ° E的高分辨率P波速度结构图像，深度至少为150 km。反演结果显示，在该造山带下，从莫霍面到至少110 km的深度存在板状高速异常。它可能代表了三叠纪陆-陆碰撞时期扬子陆块俯冲的残余。
Seismic tomography is used to determine three‐dimensional velocity structure of the Dabie‐Sulu orogen in eastern China. The high resolution image of the P‐waves velocity structure is obtained for the uppermost mantle to a depth of at least 150 km, along the latitudes of 30°–38°N and longitudes of 114°–122°E. Results of this inversion reveal a slab‐like high velocity anomaly under this orogen in the depth from Moho discontinuity to at least 110 km. It may represent a remnant of the subducted Yangtze block during the period of Triassic continent‐continent collision.