From the landslide investigation and data processing , the authors discussed the characteristics and distribution pattern of landslides , their formation conditions and mechanism , which are controlled with geological structures , lithological association , topography and rainfalls 通過對該區(qū)域內(nèi)滑坡調(diào)查和已有資料的分析研究,結(jié)果表明,昆明市滑坡分布規(guī)律與特征受到地質(zhì)構(gòu)造、地層巖性組合、地形地貌、降雨四種自然因素的影響強(qiáng)烈。
Based on the synthetic research of field outcrops , drilling section , well log and office compilation , combined with analyses of geological background , lithological association , sedimentary structure and palaeobiological character , the researched area in the chang6 - 8 oil - beds of triassic yanchang formation can be divided into deltas , braided deltas , fan deltas and lakes etc . four kinds of sedimentary facies 在野外露頭、鉆井剖面及測井曲線的綜合研究和室內(nèi)編圖基礎(chǔ)上,綜合地質(zhì)背景、巖性組合、沉積構(gòu)造及古生物特征,研究區(qū)三疊系延長組長6 ? 8油層組被劃分為三角洲、辮狀河三角洲、扇三角洲及湖泊等4種沉積相類型。
Based on the synthetic research of field outcrops , drilling section , well log and office compilation , combined with analyses of geological background , lithological association , sedimentary texture , sedimentary structure , geochemical and palaeobiological features , the researched area in the palaeozoic can be divided into deltas , braided deltas , lacus , barrier coast , continental shelf and carbonate platform etc . six kinds of sedimentary facies 在野外露頭、鉆井剖面及測井曲線的綜合研究和室內(nèi)編圖基礎(chǔ)上,綜合地質(zhì)背景、巖性組合、沉積結(jié)構(gòu)、沉積構(gòu)造、地球化學(xué)及古生物學(xué)特征,研究區(qū)古生界被劃分為三角洲、辮狀河三角洲、湖泊、障壁海岸、陸棚及碳酸鹽臺地等6種沉積相類型。