一九五八年以来,地质勘探工作中推广了一种新的钻进方法——部份钻孔不取岩心钻进法。两年来的实践证明,不取岩心钻进是加快地质勘探速度、降低成本的主要措施之一,因此,我们必须继续大力推广这种新的钻进方法。为了进一步更好的加以推广,地质部在九月份颁发了一个暂行规定,对施行范围、钻进条件、注意事项等均作了详细的规定,要求各局队贯彻执行。 Since 1958, a new drilling method has been introduced in geological prospecting work - part of the drilling is not core drilling. Practice over the past two years has proved that not taking core drilling is one of the major measures to speed up geological exploration and reduce costs. Therefore, we must continue to vigorously promote this new drilling method. In order to further promote better, the Ministry of Geology issued an interim regulation in September, which provided detailed provisions on scope of implementation, drilling conditions and precautions, and required all bureaux and departments to carry out the implementation.