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Mineralne, geokemične in pedološke značilnosti tal na Divaškem krasu = mineralogical, geochemical and pedological characteristic of soil from Divača karst : diplomsko deloImeri, SelvijaNa primeru tal, nastalih na apnencih Divaškega krasa, sem skušala ugotovili, ali obstajajo razlike med tlemi, razvitimi v vrtačah, in tlemi, nastalimi na ravninah nad njimi. Vzorčili smo talne ... profile v treh različnih vrtačah in na treh mestih na ravninah nad njimi. S standardnimi pedološkimi analizami smo v laboratoriju Centra za pedologijo in varstvo okolja na Biotehniški fakulteti v Ljubljani izmerili pH, teksturo tal in delež organske snovi. Kvalitativno mineralno sestavo vzorcev smo določali z rentgensko difrakcijsko metodo na Oddelku za geologijo. Kemijska analiza je bila opravljena v laboratoriju ACME v Kanadi z metodo induktivno vezane plazme (ICP). Ker način nastanka tal v vrtačah ni dokončno pojasnjen, tal profilov v vrtačah nismo pedološko klasificirali. Dva profila na ravninah nad vrtačami smo opredelili kot rjava rendzina, en profil na ravninah nad vrtačami kot rjava pokarbonatna tla. Mineralna analiza tal je pokazala, da v vseh mineraloško analiziranih vzorcih tal prevladujeta kremen in muskovit/illit. Klinoklor/vermikulit in plagioklazi se pojavljajo samo v tleh v vrtačah. V dveh profilih na ravninah sem določila tudi hematit. V vseh profilih so presežene mejne vrednosti Co, Cr in Ni. Cr in Ni v nekaterih horizontih presežeta tudi opozorilne vrednosti. As preseže mejne vrednosti v petih profilih, v enem profilu preseže tudi opozorilno vrednost. Mo preseže mejno vrednost pa v treh profilih. V vrtačah so statistično značilno višje vsebnosti pH, grobega in finega melja SiO2, MgO, Na2, K2O, TiO2, Ba, Hf, Sr in Zn. V skupini ravnin nad vrtačami so statistično značilno višje vsebnosti gline, organske snovi, Al2O3, Fe2O3, TOT/C, LOI ter višje vsebnosti As, Cr, Cs, Ga, Ni, Pb, Sc, Th in V.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [S. Imeri], 2013Language - slovenianCOBISS.SI-ID - 1087070
Author
Imeri, Selvija
Other authors
Zupančič, Nina, 1963- |
Grčman, Helena
Topics
pedologija |
mineralogija |
geokemija |
lastnosti tal |
kras |
Divača
Library | Call number – location, accession no. ... | Copy status |
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NTF, Department of Geology, Lj. | Geologija D IMERI Selvija Mineralne IN: 000015409 |
available - outside loan, loan period: 14 days |
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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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Imeri, Selvija | |
Zupančič, Nina, 1963- | 01384 |
Grčman, Helena | 16073 |
Source: Personal bibliographies
and: SICRIS
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