20.500.12556/DiRROS-23655 Paleoenvironmental and neotectonic insights from the pliocene fossil record of Velika Pasica Cave, Slovenia: implications for karst system evolution Implications for karst system evolution Velika Pasica Cave, situated on a karst plateau at an altitude of 665 meters above sea level, offers a unique record of paleontological, speleological, and tectonic processes. The cave, predominantly filled with allogenic sediments and speleothems, contains fossilized remains of the aquatic cave invertebrate Marifugia cavatica and terrestrial small mammals, characteristic of the early Pliocene (MN15–16). Paleontological dating estimates the cave sediments to be approximately 4 Ma old, while U/Th dating of the overlying flowstone indicates deposition at 410 ± 21 ka. These findings suggest that stagnant phreatic conditions prevailed prior to tectonic uplift and basin subsidence, which reshaped the karst landscape. This study highlights the dynamic interplay between neotectonics, karst system evolution, and biodiversity changes. By integrating speleobiology, geomorphology, and biostratigraphy, it provides valuable in-sights into the environmental history of the northern Dinarides and the impact of geological processes on karst ecosystems. Jama Velika Pasica, ki leži na kraški planoti na nadmorski višini 665 metrov, nudi edinstven zapis paleontoloških, speleoloških in tektonskih dogajanj. Jama, pretežno zapolnjena z alogenimi sedimenti in sigami, vsebuje fosilne ostanke vodnega jamskega nevretenčarja Marifugia cavatica ter kopenskih malih sesalcev, značilnih za zgodnji pliocen (biocona MN15–16). Paleontološke analize kažejo, da so sedimenti stari približno 4 milijone let, medtem ko U/Th datacije na njih odložene sige kažejo na odlaganje pred približno 410 ± 21 tisoč leti (ka). Ti rezultati nakazujejo, da so v jami pred tektonskim dvigom in pogrezanjem bazena prevladovali mirni freatični pogoji, kar dokazuje prisotnost M. cavatica. Študija izpostavlja dinamično prepletanje neotektonskih procesov, razvoja kraškega sistema in sprememb v biotski raznovrstnosti. Z združevanjem spoznanj iz speleobiologije, geomorfologije in biostratigrafije prispeva dragocena spoznanja o okoljski zgodovini severnih Dinaridov ter o vplivu geoloških procesov na kraške ekosisteme. paleontology Marifugia cavatica small mammals karst geomorphology cave sediments dating tectonic paleontologija Marifugia cavatica mali sesalci kraška geomorfologija datacija jamskih sedimentov tektonika true false true Angleški jezik Slovenski jezik Neznano 2025-09-22 12:45:56 2025-09-22 12:45:57 2025-10-24 03:54:45 0000-00-00 00:00:00 2025 0 0 Besedilo v angl.; str. 39-55 no. 1 Vol. 54 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-08-01 551.442:551.3.051:592/595(24+28)(497.4) 0583-6050 10.3986/ac.v54i1.14170 246898947 https://ojs.zrc-sazu.si/carsologica/article/view/14170/12596 1 532e458e-97a1-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35016 RAZ_Mihevc_Andrej_2025.pdf RAZ_Mihevc_Andrej_2025.pdf 1 B1819365186396698A89E90D063C581F ffd83d131f0042464f854ad9fe297f55143a223e08467fc5aaa793181f9790dc 83f6793e-97a1-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35017 Nacionalni inštitut za biologijo Acta carsologica = Krasoslovni zbornik 0 0 0