Líquenes y rocas como ejemplo de interacción entre subsistemas terrestres
ISSN: 1132-9157
Ano de publicación: 2016
Volume: 24
Número: 2
Páxinas: 143-152
Tipo: Artigo
Outras publicacións en: Enseñanza de las ciencias de la tierra: Revista de la Asociación Española para la Enseñanza de las Ciencias de la Tierra
Resumo
Lichens are the result of a combination of two very different living beings: a fungus and an organism that photosynthesizes. Their persistence over time and their wide spatial distribution show the importance of this kind of relationships between living beings. This paper presents some of the key relationships between certain lichens and the rocks on which they grow. In general, lichens act by altering rocky substrates mechanically and chemically. This has negative effects on the rocks used in monuments but in Nature it leads to soil formation. The paper also deals with the use of lichens for dating several recent geological phenomena. Many of the described processes are of great interest when it comes to developing several big ideas included in the Spanish Earth Sciences Literacy document.