FAM-1 Borehole: first results from the scientific drilling of the Alhama de Murcia Fault, Betic Cordillera, Spain

Autor: Martínez Díaz, José J., Insúa Arévalo, Juan Miguel, Tsige Beyene, Meaza, Rodríguez Escudero, Emilio, Jurado, María José, Alonso Henar, Jorge, Crespo, Jesús, Jiménez Molina, David, Moratalla, J. M., Rodríguez Peces, Martin Jesús, Álvarez Gómez, José Antonio, Pérez López, Raúl, Álvaro, M., Capote del Villar, Ramón
Rok vydání: 2016
Předmět:
Zdroj: E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Popis: We present the preliminary results of the borehole FAM-1 a 175 m depth scientific drilling of the Alhama de Murcia fault. The borehole was drilled close to La Torrecilla rambla three km SW of Lorca where the fault zone shearing is more concentrated and it is dominated by well-developed clay rich fault gouge. To select the drilling point and to perform a prognosis of it, three trenches were excavated crossing the fault zone that allowed us to determine the detailed 3D structure of the fault zone. We have collected more than 100 m of unaltered high quality fault rock to be studied using mineralogical and microtectonic analysis, and geomechanical testing that will improve the knowledge of the influence of tectonic microfabric and mineralogy in the seismogenic behavior of the AMF. The borehole FAM-1 and the seismic monitoring borehole FamSis-1 constitute the first stage of a future geological-geophysical observatory for monitoring the activity of the AMF.
Databáze: OpenAIRE