Geology of the Macao Special Administrative Region (China)

Pedro Quelhas, Ricardo Borges, Ágata Alveirinho Dias, Maria Luísa Ribeiro, Pedro Costa and João Mata

Journal of Maps, 2021, vol. 17, issue 2, 257-267

Abstract: A 1:12,000 geological map of the Macao Special Administrative Region has been produced through detailed field work supported by petrographic, mineralogical, geochronological and geochemical data obtained in previous studies. This map aims to represent a reliable tool to understand the geological evolution of the region and for management of the territory. The geology of Macao is dominated by two groups of Jurassic granitic rocks belonging to an intrusive suite located along the coast of Southeast China: Macao Group I (MGI: 164.5 ± 0.6 to 162.9 ± 0.7 Ma) and Macao Group II (MGII: 156.6 ± 0.2 to 155.5 ± 0.8 Ma), including the associated microgranite, aplite and pegmatite dikes and quartz veins. Remnants of the metasedimentary wall-rock are present as Devonian xenoliths enclosed within the granites. Younger Jurassic to Cretaceous andesite to dacite dikes (150.6 ± 0.6 to

Date: 2021
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DOI: 10.1080/17445647.2021.1906340

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