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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Europe
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Southern Europe
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Iberian Peninsula
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Spain
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Castilla y Leon Spain
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Segovia Spain (1)
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Madrid Spain (1)
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Sierra de Guadarrama (1)
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North America
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Appalachians (1)
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United States
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Maryland
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Harford County Maryland (1)
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Pennsylvania
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Chester County Pennsylvania (1)
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Lancaster County Pennsylvania (1)
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York County Pennsylvania (1)
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commodities
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construction materials
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building stone (1)
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dolostone deposits (1)
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limestone deposits (1)
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marble deposits (1)
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ornamental materials (1)
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sandstone deposits (1)
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slate deposits (2)
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geologic age
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Precambrian
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upper Precambrian
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Proterozoic
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Neoproterozoic (1)
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metamorphic rocks
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metamorphic rocks
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gneisses (1)
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metaigneous rocks
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serpentinite (1)
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metasomatic rocks
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serpentinite (1)
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Primary terms
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conservation (1)
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construction materials
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building stone (1)
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dolostone deposits (1)
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engineering geology (1)
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Europe
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Southern Europe
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Iberian Peninsula
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Spain
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Castilla y Leon Spain
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Segovia Spain (1)
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Madrid Spain (1)
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Sierra de Guadarrama (1)
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foliation (1)
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limestone deposits (1)
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marble deposits (1)
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metamorphic rocks
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gneisses (1)
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metaigneous rocks
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serpentinite (1)
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metasomatic rocks
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serpentinite (1)
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North America
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Appalachians (1)
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petrology (1)
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Precambrian
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upper Precambrian
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Proterozoic
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Neoproterozoic (1)
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sandstone deposits (1)
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slate deposits (2)
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United States
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Maryland
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Harford County Maryland (1)
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Pennsylvania
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Chester County Pennsylvania (1)
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Lancaster County Pennsylvania (1)
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York County Pennsylvania (1)
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weathering (1)
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slate deposits
Sierra de Guadarrama (Madrid, Spain): bridging the gap between geology and architecture
Abstract The knowledge that societies have of their geological environment and of the materials used in their heritage is of great importance for the sustainable use and conservation of traditional natural stone architecture. Similar weathering mechanisms occur in natural environments and the built environment and, in both cases, weathering may endanger both natural and built heritage. The Sierra de Guadarrama (Spanish Central System) is a privileged area in which natural and built heritage coexist. This paper describes an area of particular monumental and geological interest on the northern slopes of the Sierra de Guadarrama; its main aim is to propose an itinerary for members of the public, presented as a route through the area around Segovia, in which architecture/cultural heritage and an Earth sciences approach are brought together with an educational purpose. To this end, some connections are established between weathering forms in natural and built environments, as well as between the lithological characteristics of the rocks used in construction of ancient monuments in the area and the distribution of stresses and loads of walls.
Abstract Within the Piedmont Uplands Section of southeastern Pennsylvania lies a metamorphic terrane containing the Peach Bottom Slate. The Peach Bottom Formation has been the center of attention for both quarrymen and geologists for more than 200 years. This probably early Paleozoic unit, underlying “Slate Ridge,” has been mined in Lancaster and York Counties, Pennsylvania, and Harford County, Maryland. The Peach Bottom Slate was judged the best building slate in the world at the 1850 World Exposition in London. Although mining terminated in the 1940s, the effect of the slate on the community and its heritage is well preserved today. The main purpose of the field trip is to examine some of main landmarks of the slate’s cultural effects, including a visit to a Welsh cemetery and a view of the district’s largest quarry. We also will seek an understanding of how the slate industry’s history has been preserved. Some problems of the regional geology also will be addressed. At our first two stops in Chester and Lancaster Counties, we will examine serpentinite within the Baltimore Mafic Complex. Our next stop in Lancaster County is a key exposure showing the relationship between the Peach Bottom Formation and its neighboring rock units. Despite much research on the structural implications of these rocks, the interpretation is still “up in the air.” Your opinions will be very much welcomed.