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在一些地质报告和论文中,地层剖面描述的岩层厚度,有的同志写至厘米值,如8.81米、14.99米、40.00米、97.39米、200.87米、976.15米等等。但从实际上看,这些貌似准确的数值,参数并不能准确反映岩层厚度的实际情况。因为一般剖面测量所用的工具、仪器(如测绳、皮尺、地质罗盘、森林经纬仪等)的性能,本身就相当粗糙,质量不高,再加上野外地形、岩层产状的变化,露头的好坏,地形剖面测量操作的粗细,岩层划分界线的准确
In some geological reports and papers, stratigraphic sections describe the thickness of rock formations. Some comrades write centimeter values such as 8.81 meters, 14.99 meters, 40.00 meters, 97.39 meters, 200.87 meters, 976.15 meters and so on. However, in fact, these seemingly accurate values and parameters do not accurately reflect the actual situation of rock thickness. Because the performance of general tools for cross-section measurement (such as rope, tape measure, geology compass, forest theodolite, etc.), itself is quite rough, low quality, coupled with the wild topography, rock formation changes, good outcrop Bad, terrain profile measurement of the thickness of the rock strata demarcation line accurate