The integration of geophysical methods, together with the previous information of the Vallès basin area, has resulted in the creation of a new conceptual model that explains La Garriga-Samalús geothermal system. The integration of complementary geophysical methods seems to be a good option for the preliminary stages of a geothermal system exploration, especially in urban areas.

An integrated seismic ambient noise, magnetotellurics, and gravity methods were used to determine the geological units and structures which control the La Garriga-Samalús geothermal system. The 2D resistivity and density models have allowed the identification of the four main units which regulate the geothermal system: the Miocene basin, the Prelitoral Range unit, the Vallès Faut Zone, and the Paleozoic basement. The interpretation of our models set the Vallès Fault Zone, which is characterized by an anomalous low resistivity and low density, as the main path for the hot fluids. Moreover, the geophysical characterization established a new geometry for the Miocene basin. The Miocene basin presents a stepwise morphology, with the minor thickness towards the fault and an increasing thickness towards the center of the basin. This geometry seems to be related to synthetic normal faults.

These results have evidenced that, although, in some geothermal systems, the warm water may create an insufficient physical contrast; the appropriate use of some techniques can still be useful for the exploration of medium and low-temperature geothermal systems.

结合地球物理方法以及瓦勒斯盆地地区的先前信息，已创建了一个新的概念模型，该模型解释了拉加里加-萨马卢斯地热系统。对于地热系统勘探的初期阶段，尤其是在城市地区，整合互补的地球物理方法似乎是一个不错的选择。

使用综合的地震环境噪声，大地电磁和重力方法来确定控制LaGarriga-Samalús地热系统的地质单位和结构。二维电阻率和密度模型可以识别调节地热系统的四个主要单元：中新世盆地，滨海前陆山脉单元，瓦列斯福特带和古生代地下室。我们对模型的解释将以异常低电阻率和低密度为特征的瓦勒斯断层带作为热流体的主要路径。此外，地球物理特征为中新世盆地建立了新的几何形状。中新世盆地呈现出逐步的形态，朝向断层的厚度较小，而朝向盆地中心的厚度则逐渐增加。

这些结果证明，尽管在某些地热系统中，温水可能会产生不足的物理对比度；适当使用某些技术对于探索中低温地热系统仍然有用。