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palynology
Palynology is the "study of dust" (from Greek παλύνω, ''palunō'', "strew, sprinkle"〔(παλύνω ),
Henry George Liddell, Robert Scott, ''A Greek-English Lexicon'', on Perseus〕 and -logy) or "particles that are strewn". A classic palynologist analyses particulate samples collected from the air, from water, or from deposits including sediments of any age. The condition and identification of those particles, organic and inorganic, give the palynologist clues to the life, environment, and energetic conditions that produced them.
The term is sometimes narrowly used to refer to a subset of the discipline, which is defined as "the study of microscopic objects of macromolecular organic composition (i.e., compounds of carbon, hydrogen, nitrogen and oxygen), not capable of dissolution in hydrochloric or hydrofluoric acids".〔W.A.S. Sarjeant, 2002. 'As chimney-sweeps, come to dust': a history of palynology to 1970. pp. 273-327 In: Oldroyd, D. R. The earth inside and out: some major contributions to geology in the twentieth century. Geological Society (London) Special Publication no. 192.〕 It is the science that studies contemporary and fossil palynomorphs, including pollen, spores, orbicules, dinocysts, acritarchs, chitinozoans and scolecodonts, together with particulate organic matter (POM) and kerogen found in sedimentary rocks and sediments. Palynology does not include diatoms, foraminiferans or other organisms with siliceous or calcareous exoskeletons.
Palynology is an interdisciplinary science and is a branch of earth science (geology or geological science) and biological science (biology), particularly plant science (botany). Stratigraphical palynology is a branch of micropalaeontology and paleobotany, which studies fossil palynomorphs from the Precambrian to the Holocene.
==A history of palynology==
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