在砂泥质剖面中,用自然伽玛曲线解释含泥量,已是一项经典性的工作。但是多年来,其相关性一直不够理想。近年来,有人用其解释砂岩的颗粒中值,相关性有了一定的改进。本文研究自然伽玛和岩石颗粒比面的关系。可能性当前地质上应用的含泥指标是以筛析资料为依据的,即小于某一确定尺寸的颗粒是 In sand-shaly sections, it is a classic work to interpret clay content with a natural gamma curve. But over the years, its relevance has been less than ideal. In recent years, some people use it to explain the median grain size of sandstone, and the correlation has been improved to a certain extent. This article studies the relationship between natural gamma and rock particle size. Possibilities The current muddy indicators for geology are based on sieve analysis, ie particles smaller than a certain size are