Airborne time-domain electromagnetic (ATEM) which is suitable for large-scale exploration in complex terrain areas is a high-efficiency, flexible geophysical investigation technique widely applied in various fields of work with broad application prospects. It is difficult to carry out ground geophysical exploration because of the great human disturbance in the study area. By applying ATEM in the air, together with ground geophysical investigation efforts, we were able to greatly improve the hydrogeological research degree of the area and provide useful geophysical data for the fundamental geological research there. The observation system used in our study was an AeroTEM-IV system. The survey data were converted into conductivity depth information, which was used together with existing geological data to examine the electrical structure of the area. By the hydrogeological logging interpretation result, we validated the reliability of the AEM data; comprehensive interpretation was also conducted using airborne magnetic (AM) data to improve the accuracy of the interpretation result. After converting the data across the area, we yielded a three-dimensional data body representing the electrical distribution in the area, with which we inferred the Quaternary formation thickness and aquifer distribution there. Our research and interpretation results confirm that ATEM can be used as a useful means for hydrogeological survey and fundamental geological investigation. It is an effective supplement to ground geophysical exploration.

适用于复杂地形区域大规模勘探的机载时域电磁（ATEM）是一种高效，灵活的地球物理调查技术，广泛应用于各个工作领域，具有广阔的应用前景。由于研究区域内的巨大人为干扰，因此很难进行地面地球物理勘探。通过在空中应用ATEM以及地面地球物理调查工作，我们能够大大提高该地区的水文地质研究程度，并为该地区的基础地质研究提供有用的地球物理数据。我们研究中使用的观测系统是AeroTEM-IV系统。勘测数据被转换为电导率深度信息，该信息与现有的地质数据一起用于检查该区域的电气结构。通过水文地质测井解释结果，验证了AEM数据的可靠性。还使用机载磁（AM）数据进行了全面的解释，以提高解释结果的准确性。在跨区域转换数据之后，我们得到了一个三维数据主体，表示该区域的电分布，并据此推断了第四纪地层厚度和含水层的分布。我们的研究和解释结果证实，ATEM可以用作水文地质调查和基础地质调查的有用手段。它是对地面地球物理勘探的有效补充。还使用机载磁（AM）数据进行了全面的解释，以提高解释结果的准确性。在跨区域转换数据后，我们得到了一个三维数据主体，表示该区域的电分布，并据此推断了第四纪地层厚度和含水层的分布。我们的研究和解释结果证实，ATEM可以用作水文地质调查和基础地质调查的有用手段。它是对地面地球物理勘探的有效补充。还使用机载磁（AM）数据进行了全面的解释，以提高解释结果的准确性。在跨区域转换数据后，我们得到了一个三维数据主体，表示该区域的电分布，并据此推断了第四纪地层厚度和含水层的分布。我们的研究和解释结果证实，ATEM可以用作水文地质调查和基础地质调查的有用手段。它是对地面地球物理勘探的有效补充。以此推论第四纪地层厚度和含水层分布。我们的研究和解释结果证实，ATEM可以用作水文地质调查和基础地质调查的有用手段。它是对地面地球物理勘探的有效补充。以此推论第四纪地层厚度和含水层分布。我们的研究和解释结果证实，ATEM可以用作水文地质调查和基础地质调查的有用手段。它是对地面地球物理勘探的有效补充。