Secondly to interpret fractures . Imagery log can identify fractures accurately . Low angle fractures usually distribute on imagery log in the form of dark colored harmonic curve and subvertical fractures manifest dark colored line with small included angle or parallel against hole axis .

u5176u6b21u8fdbu884cu88c2u7f1du7684u89e3u91cauff0cu6210u50cfu6d4bu4e95u53efu4ee5u51c6u786eu8bc6u522bu88c2u7f1duff0cu4f4eu89d2u5ea6u88c2u7f1du901au5e38u4ee5u6697u8272u6b63u5f26u66f2u7ebfu7684u65b9u5f0fu5c55u5e03u5728u6210u50cfu56feu50cfu4e0auff0c u8fd1 u5782u76f4u88c2u7f1d u5219 u4f1au8868u73b0u4e3au4e0eu4e95u8f74u5939u89d2u5f88u5c0fu751au81f3u5e73u884cu7684u6697u8272u7ebfu6761u3002

Poisson 's Ratio Structure of the Crust and UHP Metamorphic Zone in the Dabie Orogenic Belt & A Suggestion from Wide-angle and Subvertical Seismic Reflection Sounding

u5927u522bu9020u5c71u5e26u5730u58f3u6ccau677eu6bd4u7ed3u6784u4e0eu8d85u9ad8u538bu53d8u8d28u5e26&u6765u81eau5bbdu89d2u53cdu5c04u4e0e u8fd1 u5782u76f4u53cdu5c04 u5256u9762u7684u542fu793a