首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Palaeoenvironmental significance of Late Permian palaeosols in the South‐Eastern Iberian Ranges,Spain
Authors:RAÚL DE LA HORRA  Ma ISABEL BENITO  JOSE LÓPEZ‐GÓMEZ  ALFREDO ARCHE  JOSÉ F BARRENECHEA  JAVIER LUQUE
Institution:1. Departamento de Estratigrafía, Facultad de Ciencias Geológicas, Instituto de Geología Económica UCM‐CSIC, Universidad Complutense, 28040 Madrid, Spain (E‐mail: raul.delahorra@geo.ucm.es);2. Departamento de Cristalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense, 28040 Madrid, Spain
Associate Editor: Dave Cantrell
Abstract:The Late Permian (Wuchiapingian) Alcotas Formation in the SE Iberian Ranges consists of one red alluvial succession where abundant soil profiles developed. Detailed petrographical and sedimentological studies in seven sections of the Alcotas Formation allow six different types of palaeosols, with distinctive characteristics and different palaeogeographical distribution, to be distinguished throughout the South‐eastern Iberian Basin. These characteristics are, in turn, related to topographic, climatic and tectonic controls. The vertical distribution of the palaeosols is used to differentiate the formation in three parts from bottom to top showing both drastic and gradual vertical upwards palaeoenvironmental changes in the sections. Reconstruction of palaeoenvironmental conditions based on palaeosols provides evidence for understanding the events that occurred during the Late Permian, some few millions of years before the well‐known Permian‐Triassic global crisis.
Keywords:Biotic crisis  Iberian Ranges  Late Permian  palaeosols  Permian‐Triassic boundary
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号