【正文】 ................................................................. 87 二、區(qū)域性大斷裂 ............................................................................................ 91 第三章 剖面測制及 1： 20 1： 10000地質(zhì)測量 ....................................................104 第一節(jié) 剖面測制 ................................................................................................104 一、測制剖面的目的 .......................................................................................104 二、剖面選擇和布置原則 ................................................................................104 三、測制剖面的基本方法和要求 ......................................................................104 第二節(jié) 1∶ 2020地質(zhì)測量 ................................................................................... 113 一、目的任務(wù) .................................................................................................. 113 二、地質(zhì)測量的基本方法 ................................................................................ 113 三、地質(zhì)測量精度要求 .................................................................................... 115 四、填圖要求 .................................................................................................. 115 五、路線觀測記錄及格式 ................................................................................ 116 六、地質(zhì)觀察點(diǎn)的布設(shè)和測定 ......................................................................... 116 七、地質(zhì)界線的標(biāo)繪及需要注意的問題 ........................................................... 117 八、室內(nèi)整理及填圖總結(jié) ................................................................................ 117 第三節(jié) 1∶ 10000地質(zhì)測量 ................................................................................... 118 一、地質(zhì)測量前準(zhǔn)備工作 ................................................................................ 118 二、礦區(qū)地質(zhì)測量的方法 ................................................................................ 118 三、地質(zhì)觀察點(diǎn)的布設(shè)和測定 ......................................................................... 119 四、觀察點(diǎn)記錄內(nèi)容及格式 ............................................................................. 119 五、地質(zhì)觀 測研究程度及精度要求 ..................................................................120 六、地質(zhì)界線地確定及標(biāo)繪 .............................................................................120 七、室內(nèi)整理及填圖文字總結(jié) .........................................................................121 第四章 探礦工程地 質(zhì)編錄 ....................................................................................122 第一節(jié) 探槽及剝土 ..............................................................................................123 一、探槽 .........................................................................................................123 二、剝土 .........................................................................................................126 第二節(jié) 井 探 ...................................................................................................128 一、布置原則 ..................................................................................................128 二、規(guī)格 .........................................................................................................128 三、編錄及要求 ..............................................................................................128 第三節(jié) 洞 探 ..................................................................................................130 一、布置原則 ..................................................................................................130 二、規(guī)格 .........................................................................................................131 三、編錄及要求 ..............................................................................................131 第四節(jié) 鉆 探 ...................................................................................................135 一、布置原則 ..................................................................................................135 二、鉆探種類應(yīng)用范圍 ....................................................................................135 三、編錄及要求 ..............................................................................................136 第五章 采樣工作 ...................................................................................................146 第一節(jié) 化學(xué)分析采樣 .......................................................................................146 3 一、采樣方法 ..................................................................................................146 二、采樣方法的選擇 .......................................................................................151 三、采樣間距的 確定 .......................................................................................152 四、樣品合并 ..................................................................................................153 五、樣品分析種類 ...........................................................................................153 六、樣品整理 ..................................................................................................154 七、化學(xué)分析結(jié)果檢查 ....................................................................................154 第二節(jié) 巖礦、標(biāo)本采樣 ....................................................................................155 一、各類標(biāo)本的采集 .......................................................................................155 二、采集標(biāo)本的規(guī)格 .......................................................................................156 三、樣品整理及送樣 .......................................................................................156 第三節(jié) 重砂采樣 ..............................................................................................156 一、自然重砂采樣 ...........................................................................................156 二、人工重砂采樣 ...........................................................................................157 三、砂礦采樣 .................................................................................