This article presents, based on field survey and in the consulted literature, the main procedures for fixing of claddings with plates of rocks, adopted in the city of Sao Paulo for buildings and contemporary urban wor...This article presents, based on field survey and in the consulted literature, the main procedures for fixing of claddings with plates of rocks, adopted in the city of Sao Paulo for buildings and contemporary urban works. There was an increase in the quality of these claddings in the last decades due to several factors, such as the adoption of technological innovations in the extraction process of the rocky material and in the productive chain and, also, the use of most modem procedures for projects in which are incorporated new knowledge for better use of the rocky material and reduction of waste, due to greater demands of the market in the sector of omamental stones.展开更多
Jurassic rocks are abundantly developed in the source area of the Yangtze River,South Qinghai,with the greatest thickness of 6311 m,including five stratigraphic units:Qoimaco Formation,Buqu Formation,Xiali Formation,S...Jurassic rocks are abundantly developed in the source area of the Yangtze River,South Qinghai,with the greatest thickness of 6311 m,including five stratigraphic units:Qoimaco Formation,Buqu Formation,Xiali Formation,Suowa Formation,and Xueshan Formation.Based on sufficient fossils of bivalves,ammonites,and brachiopods,the major part of these formations is ascribed to the Middle Jurassic Bathonian to Callovian.No diagnostic fossils have been found from the Lower Qoimaco Formation or Upper Xueshan Formation,which could possibly contain in part Bajocian and Oxfordian taxa respectively.展开更多
文摘This article presents, based on field survey and in the consulted literature, the main procedures for fixing of claddings with plates of rocks, adopted in the city of Sao Paulo for buildings and contemporary urban works. There was an increase in the quality of these claddings in the last decades due to several factors, such as the adoption of technological innovations in the extraction process of the rocky material and in the productive chain and, also, the use of most modem procedures for projects in which are incorporated new knowledge for better use of the rocky material and reduction of waste, due to greater demands of the market in the sector of omamental stones.
基金supported by National Natural Science Foundation of China(Grant Nos.40772022,40972006)State Key Laboratory of Palaeobiology and Stratigraphy(Nanjing Institute of Geology and Paleontology)Chinese Academy of Sciences(Grant No.10311)
文摘Jurassic rocks are abundantly developed in the source area of the Yangtze River,South Qinghai,with the greatest thickness of 6311 m,including five stratigraphic units:Qoimaco Formation,Buqu Formation,Xiali Formation,Suowa Formation,and Xueshan Formation.Based on sufficient fossils of bivalves,ammonites,and brachiopods,the major part of these formations is ascribed to the Middle Jurassic Bathonian to Callovian.No diagnostic fossils have been found from the Lower Qoimaco Formation or Upper Xueshan Formation,which could possibly contain in part Bajocian and Oxfordian taxa respectively.
