| Title | Magnetni susceptibilitet tala razvijenih na karbonatnim stijenama južne Dalmacije : diplomski rad |
| Author | Adrian Špehar |
| Mentor(s) | Slobodan Miko (thesis advisor)
|
| Abstract | Istraživanje je provedeno na području Splitsko – dalmatinske i Dubrovačko – neretvanske županije
u sklopu projekta „Promjena zaliha ugljika u tlu i izračun trendova ukupnog dušika i organskog
ugljika u tlu te odnosa C:N“. Na uzorcima prikupljenim širom istraživanog područja (do 30 cm u
intervalima od 10 cm) mjerio se maseni i frekventni magnetni susceptibilitet u svrhu interpretacije
područja koja pokazuju visoke vrijednosti magnetnog susceptibiliteta. Dodatnim analizama uzoraka
kao što su geokemijska, rendgenska difrakcijska analiza (XRD), i kategorizacijom prema tipu tla i
vrsti pokrova željela se dobiti informacija kakav one utjecaj imaju na raspodjelu magnetnog
susceptibiliteta na području istraživanja. Rezultati statističkih analiza su pokazali kako se magnetni
susceptibilitet veže uz Al, Fe i Ti. Povećana prisutnost Ca u tlu dovodi do smanjenja MS. Uzorci su
prikupljeni s četiri dominantna tla, a to su crvenice, smeđa tla, crnice i eugleji. Najveće vrijednosti
magnetnog susceptibiliteta izmjerene su na uzorcima crvenice, nakon toga na uzorcima smeđih
tala, dok je najniža vrijednost za euglej. Povećanjem dubine se u većini uzoraka povećavao i
magnetni susceptibilitet što dovodi do zaključka kako su magnetne čestice litogenog podrijetla.
Poljoprivredna zemljišta i močvare imaju najniže vrijednosti magnetnog susceptibiliteta, iz čega
proizlazi kako sadrže najmanji udio magnetnih čestica. Najviše su vrijednosti izmjerene za
pašnjake. |
| Keywords | Split – Dalmatian county Dubrovnik – Neretvanska county mass and frequency magnetic susceptibility Terra Rossa soils brown soils geochemical analyses |
| Parallel title (English) | Magnetic susceptibility of grounds developed on carbonates of South Dalmatia |
| Committee Members | Slobodan Miko (committee chairperson)
Goran Durn (committee member)
Jelena Parlov (committee member)
|
| Granter | University of Zagreb
Faculty of Mining, Geology and Petroleum Engineering |
| Lower level organizational units | Department of Mineralogy, Petrology and Mineral Resources |
| Place | Zagreb |
| State | Croatia |
| Scientific field, discipline, subdiscipline | TECHNICAL SCIENCES
Mining, Petroleum and Geology Engineering
Geological Engineering
|
| Study programme type | university |
| Study level | graduate |
| Study programme | Geological engineering; specializations in: Hydrogeology and engineering geology, Environmental geology |
| Study specialization | Hydrogeology and engineering geology |
| Academic title abbreviation | mag. ing. geol. |
| Genre | master's thesis |
| Language | Croatian |
| Defense date | 2017-02-23 |
| Parallel abstract (English) | This study was performed in the area of Split – Dalmatian and Dubrovnik – Neretvanska county as
a part of project entitled „The change of carbon stocks in soil and calculation of trends of nitrogen
and organic carbon in soil and C:N ratio“. Mass and frequency magnetic susceptibility (MS) was
measured in the samples collected around the studied area (up to 0.3 meters in intervals of 0.1
meter) to determine areas with high values of magnetic susceptibility. Additional analyses, such as
X – Ray Difraction (XRD), geochemical, soil type classification and land cover were made to
estimate their influence on magnetic susceptibility distribution around the area of research. Results
of geochemical analyses have shown that magnetic susceptibility mostly depends on elements Al,
Fe and Ti. Presence of Ca results in lower MS values. Samples were collected in four dominant soil
types: Terra Rossa, brown soils, humic soils and eugley soils. The highest MS is measured in Terra
Rossa samples, lower in brown soils, and the lowest in eugley soils. MS values increase with depth
in most samples, so the conclusion is that magnetic particles are lithogenetic in origin. Values of
MS are lowest in croplands and wetlands due to the lowest amount of magnetic particles in them.
In the samples collected in grasslands the highest values were measured. |
| Parallel keywords (Croatian) | Splitsko–dalmatinska Dubrovačko–neretvanska maseni i frekventni magnetni susceptibilitet crvenice smeđa tla geokemijske analize |
| Resource type | text |
| Access condition | Open access |
| Terms of use |  |
| URN:NBN | https://urn.nsk.hr/urn:nbn:hr:169:600702 |
