Melt yak butter in a black clay pan, then add the slices of matsutake.
From dune 45 I proceed to Big Daddy, the highest dune in the world, and then it's on to the salt and clay pan of Sossusvlei.
The present study has investigated biological effects of arsenic on clay pan yellow cinnamon soil, red soils (with high fertility and low fertility) and paddy soil.