000145087 001__ 145087
000145087 005__ 20250923084436.0
000145087 0247_ $$2doi$$a10.1002/esp.5967
000145087 0248_ $$2sideral$$a139909
000145087 037__ $$aART-2024-139909
000145087 041__ $$aeng
000145087 100__ $$aEntrena, Ana
000145087 245__ $$aPhreatic overgrowths on speleothems (POS) from the Mallorca caves: Morphology, mineralogy, and crystal fabric classification
000145087 260__ $$c2024
000145087 5060_ $$aAccess copy available to the general public$$fUnrestricted
000145087 5203_ $$aPhreatic overgrowths on speleothems (POS) are unique precipitates that are found in a small number of coastal caves around the world, like those in the Mallorca Island. Their growth is directly related to the water level of the brackish lakes connected to the sea characteristic of these caves and, therefore, they can be very reliable indicators of past sea levels. The study presented here characterizes and classifies an important number of POS samples collected in the coastal caves of Mallorca. The characterization includes not only the observations made on 117 handheld samples and on 102 thin sections from POS, but also the study of their mineralogy and their location in the caves. This study has provided the basis for a systematization of all these characteristics, some of which are reported here for the first time in POS samples. The results indicate that (1) most of the POS precipitate on stalactites, (2) calcite POS show branched internal and external texture and their most common crystal fabric is mosaic calcite and (3) aragonite POS show globular external texture and fan‐shaped internal texture, and their principal crystal fabric is needle‐like. All the aragonitic samples have been found above or at the same heights as the current sea level, which indicates that they have probably formed during warmer climates. The calcite POS have been found at heights above and below the present sea level and are interpreted as to have formed during cold and rainy periods. The systematization proposed in this paper could be applied and checked in other POS worldwide. Additionally, the combination of these results with the information obtained from studies on the present precipitation of these phreatic speleothems in some Mallorca caves has provided an insight on their formation conditions which will enlarge the utility of these speleothems as palaeoenvironmental indicators.
000145087 536__ $$9info:eu-repo/grantAgreement/ES/MICIN/BES-C2017-009$$9info:eu-repo/grantAgreement/ES/MICIU/PID2020-112720GB-I00/AEI/10.13039/501100011033
000145087 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000145087 590__ $$a2.7$$b2024
000145087 592__ $$a0.93$$b2024
000145087 591__ $$aGEOGRAPHY, PHYSICAL$$b27 / 67 = 0.403$$c2024$$dQ2$$eT2
000145087 593__ $$aEarth and Planetary Sciences (miscellaneous)$$c2024$$dQ1
000145087 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b99 / 258 = 0.384$$c2024$$dQ2$$eT2
000145087 593__ $$aGeography, Planning and Development$$c2024$$dQ1
000145087 593__ $$aEarth-Surface Processes$$c2024$$dQ1
000145087 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000145087 700__ $$0(orcid)0000-0003-1463-1682$$aAuqué, Luis F.$$uUniversidad de Zaragoza
000145087 700__ $$0(orcid)0000-0001-5645-9150$$aGimeno, María J.$$uUniversidad de Zaragoza
000145087 700__ $$aFornós, Joan J.
000145087 7102_ $$12000$$2685$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Petrología y Geoquímica
000145087 773__ $$g49, 13 (2024), 4289-4309$$pEarth surf. processes landf.$$tEARTH SURFACE PROCESSES AND LANDFORMS$$x0197-9337
000145087 8564_ $$s10664615$$uhttps://zaguan.unizar.es/record/145087/files/texto_completo.pdf$$yVersión publicada
000145087 8564_ $$s2396833$$uhttps://zaguan.unizar.es/record/145087/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000145087 909CO $$ooai:zaguan.unizar.es:145087$$particulos$$pdriver
000145087 951__ $$a2025-09-22-14:47:22
000145087 980__ $$aARTICLE