Geology of the Macao Special Administrative Region (China)

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 evo...

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Bibliographic Details
Published in:Journal of maps 2021-12, Vol.17 (2), p.257-267
Main Authors: Quelhas, Pedro, Borges, Ricardo, Dias, Ágata Alveirinho, Ribeiro, Maria Luísa, Costa, Pedro, Mata, João
Format: Article
Language:English
Subjects:
Andesite
Cartography
Cretaceous
Devonian
Digitization
Dikes
Geochemistry
Geochronology
Geologic mapping
geological map
Geological mapping
Geology
granites
Igneous rocks
Jurassic
Landfill
Macao (South China)
magmatic rocks
Mapping
Mesozoic
Mineralogy
Pegmatite
Petrogenesis
Quaternary
Rocks
Science
Sediment deposits
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Summary: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
ISSN:1744-5647
1744-5647
DOI:10.1080/17445647.2021.1906340