Listen all I think Kola's studies show is that mass body destruction and burial took place at these places, on a scale far greater than even a few thousand bodies. It seems like you disagree with this, so that's why we're still stuck on the report.If you want to persuade me to see your side, you need to connect the dots. You will have a hard time doing so, though. There is a reason, after all, that questions about the holocaust are not tolerated. The event doesn't hold up to scrutiny.
The Canadian studies you referenced were different. They were completely non-invasive, using GPR. Kola extracted thousands of soil samples so I don't think you can compare them. They aren't anomalies but different materials precisely identified by Kola
(pictures below of the Sobibor dig, where massive amounts of ash were also found)
Kola identified eg "body ashes", "carbonised wood, fragments of burnt human bones, pieces of skulls with skin and tufts of hair still attached, lumps of greyish human fat, and fragments of unburned human bones. The bottom layer consisted of putrid wax-fat transformation. " There's nothing mysterious about this, and since he was able to do multiple drills per grave, he found the presence of layers, meaning the same materials were distributed across the entire grave per layer.