2024-03-29T05:51:08Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/343762019-08-06T09:52:13Zcom_10261_50com_10261_8col_10261_303
The pedogenic action of lichens in metamorphic rocks
Galván, Jesús
Rodríguez Pascual, C.
Ascaso, Carmen
Lichens
Metamorphic rocks
Pedogenic action
14 pages, figures, and tables statistics.
Lichens are conspicnons pioneers on rocks, and frequently initiate stages of snccession (8). Their
seniority as pioneers is illustrated by the cosmopolitau distribntion of certain species (14). It \vas
shown that many lichenic acids can complex appreciable ainounts of cations from powdered minerals
and rocks (9,10) and also it has been demonstrated that certain lichenic compoimds can altor minerals
mider laboratory conditions at the striictural level, giving rise to new minerals (2). The role of licliens
in pedogenesis, as related to their ability to colonise rock siirfaces has been studied (13) and more
recently it has been demonstrated that lichens can induce chemical and morphological changes in the
mineral composition of certain rocks (granite and gneiss) in the zone just below a lichenic thallus (3).
Kecause of the importance of lichen-rock interactions for the formation of primitive soils from altered
rock minerals and particles of the lichenic thalli, it seems interesting to continué investigating the
alteration capabilities of lichens on ernptive rocks and to extencl such stiidies to the alteration of
methamorphic rocks.
2011-04-07T07:22:54Z
2011-04-07T07:22:54Z
1981
artículo
Pedobiología 21: 60-73 (1981)
0031-4056
http://hdl.handle.net/10261/34376
eng
closedAccess
Elsevier