Luminescence dating is applied to sediments from Mwulu's Cave, whose lithics have been typologically considered Middle Stone Age (MSA) and have been previously assigned to what is called the Pietersburg industry. This industry is, however, poorly defined both chronologically and typologically. Luminescence methods were applied to both quartz and potassium feldspars by two different laboratories. Age results from single-grain quartz are much younger than those from multi-grain aliquots and this is attributed to the use of different fits to the growth curves and the effect of this on samples near saturation. Single-grain potassium feldspar ages are much older than the single-grain quartz ages. Application of various methods to address anomalous fading produced broadly consistent results among samples. Most K-feldspar samples appear to be about 90 ka. These are compared to other South African MSA sequences and industries.

发光测年法适用于姆武卢洞穴的沉积物，该洞穴的石块在类型学上被视为中石器时代（MSA），并且先前已被分配给所谓的彼得斯堡工业。但是，该行业在时间和类型上都定义不清。两种不同的实验室将发光方法应用于石英和钾长石。单粒石英的年龄结果要比多粒等分试样的结果年轻得多，这归因于对生长曲线的不同拟合及其对接近饱和样品的影响。单粒钾长石的年龄比单粒石英的年龄大得多。各种方法在解决异常衰落方面的应用在样本之间产生了大致一致的结果。大多数钾长石样品似乎约为90 ka。这些与其他南非MSA序列和行业进行了比较。