Propuesta de monitorización instrumental para la geoconservación del LIG “icnitas de reptiles triásicos” en el Geoparque de la Comarca de Molina-Alto Tajo (Guadalajara)
- A. Díez Herrero 1
- J. Luengo 1
- J. Vegas 1
- M. Hernández 1
- L. Carcavilla 1
- A. Sopeña 2
- Y. Sánchez-Moya 2
- J. Moratalla 1
- E. Baeza 1
- Á. García-Cortés 1
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1
Instituto Geológico y Minero de España
info
- 2 UCM
- I. Carcavilla (coord.)
- J. Duque Macías (coord.)
- J. Giménez (coord.)
- A. Hilario (coord.)
- M. Monge Ganuzas (coord.)
- J. Vegas (coord.)
- A. Rodríguez (coord.)
Publisher: Instituto Geológico y Minero de España
ISBN: 978-84-9138-032-0
Year of publication: 2017
Pages: 155-161
Type: Book chapter
Abstract
A new instrumental monitoring proposal installed in the outcrops of Triassic sandstone with reptile ichnites geosite, located in the Molina- Alto Tajo UNESCO Geopark (Guadalajara, Central Spain), is presented. The system consists of: a continuous record tipping bucket rain gauge with digital datalogger; a dual sensor thermometer (to measure the air temperature and the temperature of the surface of the rock inside a rock-joint) that collect data every fifteen minutes; and a precision analogic jointmeter with millimeter dial. The purpose of this system and the data it registers, is to provide values for the characterization (frequency and magnitude) of the active processes that can degrade the heritage values of the geosite; such as the physic-chemical weathering of the rock holder by gelifraction; that is to say, freeze-thaw cycles occurring when the rock-joints and pores of the rock are filled with water what can enlarge the rock-joints that limit the blocks of the ichnites, producing their rockfall and rupture. This would allow to establish geoindicators to be used for monitoring the conservation status of the geosite and its temporal evolution, which will help the management by the competent administrations.