Berta quarry and mine, Sant Cugat del Vallès-El Papiol, Vallès Occidental-Baix Llobregat, Barcelona, Catalonia, Spain
|Latitude & Longitude (WGS84):||41° 27' 0'' North , 2° 0' 20'' East|
|Latitude & Longitude (decimal):||41.45000,2.00556|
|Other regions containing this locality:||Iberian Peninsula|
|Köppen climate type:||Csa : Hot-summer Mediterranean climate|
|Name(s) in local language(s):||Pedrera Berta (Cantera Berta; Mina Berta)|
Hydrothermal low temperature F-Pb-Zn veins emplaced in fractures after two mineralizing events in a continental rift context: Triassic-Jurassic transit and Miocene. Bedrock is an altered Hercynian granodiorite.
Recently in 2003 a crushed granodiorite aggregate plant finished activities. Ancient mining workings consisted of subterranean galleries following some of the metal-rich veins. A future urban and industrial waste deposit is currently under project by regional administration.
The primary mineralization consists on two generations of fluorite with Pb-Zn-Fe sulfides (mainly galena, sphalerite and pyrite). Other abundant minerals are barite, calcite and quartz. Oxidized areas are also present in the veins, giving variable abundance of cerussite, anglesite, smithsonite, goethite and hematite.
The most popular mineral in Berta quarry is fluorite of second generation. It crystallizes in millimeter-sized pale green octahedrons, covering plates of sericitized granodiorite. Abundant and very aesthetic arrays are easily found, often with small crystals of calcite, galena, sphalerite, pyrite, marcasite and quartz. A great variety of samples for micromounters is also present.
58 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
0.0117 - 2.588 Ma
Age: Pleistocene (0.0117 - 2.588 Ma)
Reference: Mapa Geológico de la Península Ibérica, Baleares y Canarias a escala 1:1.000.000. Instituto Geológico y Minero de España. 
|Serravallian - Burdigalian|
11.62 - 20.44 Ma
|Neogene sediments and sedimentary rocks|
Age: Miocene (11.62 - 20.44 Ma)
Reference: Institut Cartogràfic i Geològic de Catalunya. Mapa geològic comarcal de Catalunya 1:50.000. Generalitat de Catalunya.