El mapa geològic i topogràfic de la província de Barcelona: de l'escala 1:100.000 a la 1:40.000 (1884-1891)

Abstract

Geological and topographical map of Barcelona province: from the 1:100.000 to the 1:40.000 scale (1884-1891)

The renewing and evolution of Barcelona-province mapping between 1884 and 1891 is studied. A first survey of Barcelona’s neighbourhood was done by Drs. Almera and Bofill at a 1:100.000 scale, and a first geological sheet was published in 1888 over a synthetic topographic base. Then, a proposal from the authors in order to enlarge this first sheet was accepted by the Diputacion, and a new topographic base at 1:40.000 scale was made and engraved by Brossa. A new geologic map was printed in 1891 on this basis: it was highly appraised between contemporary geologists, and today it is valuated as a milestone in the geological knowledge of the central Catalonian Ranges. After its publication, the survey of the province pursued at 1:40.000 scale, leaving the original project at 1:100.000 scale.