One possibility is that they contain evaporates such as mineral salts in a matrix of high water content.
(One possibility; is; that they contain evaporates such as mineral salts in a matrix of high water content) Context(One possibility is,List([0, 18))):(they; contain; evaporates such as mineral salts in a matrix of high water content)
One possibility is,List([0, 18))
One possibility they
is contain
that they contain evaporates such as mineral salts in a matrix of high water content
evaporates such as mineral salts in a matrix of high water content