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A Study of Devonian Reefs from Southern China
Author(s) -
Tianqiu HONG,
Ming HUANG,
FLAJS G.
Publication year - 2000
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.2000.tb00489.x
Subject(s) - devonian , reef , geology , paleontology , carbonate , late devonian extinction , carbonate platform , oceanography , facies , carboniferous , structural basin , materials science , metallurgy
Three Devonian reefs (bioherms) from Yunnan and Guangxi, southern China, are studied in detail. Six microfacies types are differentiated. Colonial rugose corals ( Columnaria, Disphyllum and Hexagonaria ) at Qujing, tabulate corals ( Alveolites ) with massive stromatoporoids ( Actinostroma and Stromatoporella ) and sponges at Panxi, and massive stromatoporoids ( Actinostroma, Trupetostroma and Stromatoporella ) at Yangshuo belong to the most important reef builders. All the three reefs studied clearly reveal a successive evolution history. They developed on the carbonate banks, shallow carbonate platforms and platform margins in the Late Givetian and terminated in the Frasnian due to sea‐level falls related to local uplifts of platforms. This coincides with a eustatic fall of relative sea level at the Frasnian/Famennian transition.