Retrieving "Precambrian Sedimentary Rocks" from the archives

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1. N Alkanes

   Linked via "Precambrian sedimentary rocks"

   Occurrence and Application
   While synthetic production routes dominate the supply chain, trace amounts of very long-chain n-alkanes ($n > 25$) are recovered from geological deposits, particularly in Precambrian sedimentary rocks, where they are preserved in a state of arrested kinetic decomposition [11].
   In industry, n-alkanes are crucial components of various refined petroleum products: