中文摘要：

烃类气体具有挥发性强、运移距离远、反映深度大，并能在矿化体周围形成异常场等特点，因此将其运用于龙口铅锌矿区的深部找矿预测，通过对烃类组分在不同岩石中的含量特征及烃气异常在空间上与铅锌矿体的对应关系进行分析，结合地质和构造特征，对本区深部的成矿潜力进行了评价，圈出了相关找矿的有利区段。

英文摘要：

Hydrocarbon gas has features of higher volatile, big migration distance, deep reflecting, and anomalies forming around ore bodies. Therefore, the hydrocarbon measurement method has been used to forecast the deep ore-prospecting in Longkou lead-zinc deposit. According to analysis on the content features of hydrocarbon components in different types of rock and the correspondence between hydrocarbon anomalies and the lead-inc ore in space, with the combination with geological and structural features, the deep mineralization potential in the region is evaluated and some valuable ore prospecting sections are outlined.