Slovenian Academy of Sciences and Arts, Lj. - all departments (SAZU)
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Odsev klime s klastov pleistocenskih sedimentov v paleolitskem nahajališču Divje babe ITurk, Janez, 1980-Kronologijo sedimentov v paleolitskem najdišcu Divje babe I so določali s pomočjo različnih metod (14C in elektronska spinska resonanca - ESR). V svojem diplomskem delu sem se osredotočil na ... interpretacijo strukturnih značilnosti sedimentov. Z njimi sem skušal razložiti spreminjanje paleoklime, predvsem paleotemperature in deloma paleovlage. Pregledal sem 28 vzorcev, ki so bili vzeti iz dveh profilov v jami. V vsakem vzorcu sem proučil 300 do 400 klastov velikosti 10-40 mm in vse klaste velikosti 40-65 mm. Razdelil sem jih na tri skupine: kongelifrakte, klaste ki so se zaoblili v sedimentu zaradi kemičnega preperevanja ter razpadli na manjše kose zaradi delovanja zmrzali. Zaobljene klaste, ki so bili zaobljeni v sedimentu zaradi kemičnega preperevanja. Ostrorobe klaste. Ti klasti so v sedimentu le malo kemično prepereli. V vsakem vzorcu sem izračunal relativno zastopanost kongelifraktov. Za vzorce, v katerih je odstotek kongelifraktov večji, predvidevamo da predstavljajo sedimente povezane s hladnejšo klimo. Nasprotno pa vzorci, ki imajo manjši odstotek kongelifraktov, predstavljajo sedimente povezane s toplejšo klimo. Na podlagi 28-ih pregledanih vzorcev sem s pomočjo računalniškega programa STATISTICA 6.0, StatSoft izdelal krivuljo relativne zastopanosti kongelifraktov. Na podlagi krivulje sem sklepal na spreminjanje paleotemperaturnih razmer v profilu, ki zajema obdobje med 80.000 in 40.000 let pred sedanjostjo, kot kažejo datacije z metodo ESR. Krivuljo relativne zastopanosti kongelifraktov sem nato primerjal z drugimi, med seboj neodvisnimi raziskavami paleotemperaturnih razmer, ki so bile opravljene tako v jami Divje babe I (paleontološke raziskave, vključno s palinologijo), kot tudi drugod po svetu (palinologija in izotopske raziskave ledu).Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [J. Turk], sep. 2004Language - slovenianCOBISS.SI-ID - 473950
Author
Turk, Janez, 1980-
Other authors
Skaberne, Dragomir
Topics
sedimentologija |
klasti |
pleistocen |
starejša kamena doba |
Divje babe I |
klima
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Turk, Janez, 1980- | 27508 |
Skaberne, Dragomir | 05066 |
Source: Personal bibliographies
and: SICRIS
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