Discovery and geographical characterization of an ultramafc depression in Bermeja Mountain: New geomorphological, soil, vegetation and paleoecological data

José Gómez-Zotano, José Antonio Olmedo-Cobo, Raquel Cunill-Artigas, Emilio Martínez-Ibarra

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

© 2017 CSIC. Is presented the recent discovery and characterization of a endorheic basin at the summit of the Sierra Palmitera, an abrupt foothill of the peridotite massif of Sierra Bermeja (SW of Spain) that reaches 1,473 meters above sea level. Given the nature of this littoral ultramafc mountain, this basin is considered a geomorphological exceptionality for the whole of the known peridotite outcrops. Fieldwork and interpretation of photographs, main methodological procedures of the research, and the use of GIS have allowed a frst geographical reconnaissance and the mapping of the main physical features to detail scale (1: 5.000). the obtained results are: (1) a topographic map (equidistance of 5 meters) as basis of the thematic mapping; (2) the identifcation, characterization and mapping of the major geomorphological and edaphic units to the mentioned scale; (3) the characterization of the vegetation and?ora of the basin through the phytosociological analysis, and the development of a vegetation map to scale detail. these results provide knowledge about the origin of the basin, its operation and its ecological role. As outstanding feature, the accumulation of sediment at the bottom of the basin allows the paleo-ecological study of vegetation from the charcoals deposited on the soil, highlighting the fnding of charcoal of Abies pinsapo, species of spruce threatened currently absent in the location.
Original languageEnglish
Article numbere026
JournalPirineos
Volume172
DOIs
Publication statusPublished - 1 Jan 2017

Keywords

  • Abies pinsapo
  • Endorreism
  • Peridotite
  • Serpentine ecosystem
  • Ultramafc rocks

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