20.500.12556/RUL-151028 Pogoji nastanka in diageneza zgornjekvartarnih priobalnih karbonatov z otoka Guam, Mikronezija raziskovalna naloga depositional environment and diagenesis of Late Pleistocene coastal carbonates of Guam Island, Micronesia research paper Zgornjekvartarni karbonati in njihovi pogoji nastanka so zanimivi za aktualne podnebne študije, saj predstavljajo skoraj neizčrpen vir podatkov o paleookolju in paleoklimi. V delu podrobno opisujemo Tarague apnenec. Ta karbonat so prvič opisali v devetdesetih letih, vendar ni bil nikoli podrobno petrološko karakteriziran. Zbruske Tarague apnenca smo preučili na optičnem mikroskopu in rezultate primerjali s shemami za določevanje recentnih diagenetskih okolij. Prepoznali smo večgeneracijske cemente morskega ali sladkovodnega freatičnega in vadoznega diagenetskega okolja, ki nakazujejo na dinamično spreminjanje morske vode v obdobju zadnje medledene dobe. Upper Quaternary carbonates and the conditions of their formation are attractive for current climate studies, as they represent an almost inexhaustible source of data on paleoenvironment and paleoclimate. In this work we describe the Tarague limestone in detail. The carbonate was first described in the 1990s, but it has never been petrologically characterized. Thinsections of the Tarague limestone were examined under an optical microscope and the results were compared with schemes for determining recent diagenetic environments. We identified many generations of cements of marine or freshwater phreatic and vadose diagenetic environments, which indicate dynamic changes in seawater during the last interglacial period. Tarague apnenec Guam diagenetsko okolje MIS 5e Tarague limestone Guam diagenetic environment MIS 5e true false false L. Dvorščak Slovenski jezik Angleški jezik Zaključna naloga 2023-09-28 07:40:25 2023-09-28 07:53:37 2023-09-29 03:51:13 0000-00-00 00:00:00 2023 0 Ljubljana 2023 Ljubljana XII, 48 str., 4 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 55 151872003 Dvorscak_Lea_2023.pdf Dvorscak_Lea_2023.pdf 1 4534A0AFF1538028229783CADDB7FD40 89e0c9a14df58ddbbfec58ca75a6089f0c0706bf5bef0e1408b8b63b9c7800eb b9cd788b-5dc1-11ee-8519-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=175909 Naravoslovnotehniška fakulteta 0 0 0