<p>The traditional methods of provenance analysis are often constrained by factors such as sampling locations and quantities, rendering them time consuming and costly. In recent years, some researchers have explored new approaches to provenance analysis. However, these methods remain fundamentally rooted in traditional techniques. This paper focuses on the Shan 1-He 8 members located in the southwestern region of the Ordos Basin as the primary research area. Utilizing natural Gamma Ray (GR) logging curve, this study seeks to identify Milankovitch cycles to calculate deposition rates and analyze provenance directions within the study area. To validate the reliability of this method, samples were collected from outcrops and cores within the region. Provenance analysis was conducted based on relative contents of heavy minerals and feldspar to further corroborate this approach. The findings indicate that both sedimentation rates from Milankovitch cycles and mineral content are largely consistent. Both analyses confirm that there are three major sources of provenance in the southwestern part of the Ordos Basin, thereby demonstrating a high level of reliability for this methodology. Employing Milankovitch cycles for calculating sedimentation rates in provenance analysis effectively reduces costs and manpower requirements while offering distinct advantages over conventional methods. This approach can be regarded as a novel technique for indicating provenance.</p>