出典:Wiktionary
出典:『Wiktionary』 (2011/10/08 20:08 UTC 版)
liptinite (countable かつ uncountable; 複数形 liptinites)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/05 13:15 UTC 版)
Liptinite is an umbrella term used in coal geology, referring to the finely-ground and macrerated remains found in coal deposits. It replaced the term Exinite as one of the four categories of kerogen. Liptinites were originally formed by spores, pollen, dinoflagellate cysts, leaf cuticles, and plant resins and waxes.