摘要: The fatty acids continue to be one of the most rewarding types organic compounds studied by geochemists. Almost without exception every research group concerned with acid geochemistry has produced qualitatively new data and relationships. Several factors make favorable molecules for geochemical study; they are major components organisms, many them have intrinsic chemical stability persist geologically long periods time, sufficient chemically-different carboxylic occur naturally carry useful information about their origin transformations.