摘要
Information mainly collected decades ago,during and following its quarrying years,is here reviewed for the Jacobsville Sandstone,a well-known red bed sandstone of Neoproterozoic age from Upper Michigan,USA.This formation is here proposed as a suitable“Global Heritage Stone Resource”.The Jacobsville is an excellent example of a heritage stone as it was used extensively all over Eastern North America from 1880 to 1920 in hundreds of prominent buildings in major cities and many small towns,including the famous Waldorf Astoria Hotel in New York City.It was extensively mined from several quarry sites near Jacobsville,Michigan in Michigan’s Keweenaw Peninsula.The location is part of a significant geoheritage location,where native copper has also been mined for thousands of years.
