Current and sea level control the demise of shallow carbonate production on a tropical bank (Saya de Malha Bank, Indian Ocean)

被引：11

作者：

Betzler, Christian ^{[1
]}

Lindhorst, Sebastian ^{[1
]}

Luedmann, Thomas ^{[1
]}

Reijmer, John J. ^{[2
]}

Braga, Juan-Carlos ^{[3
]}

Bialik, Or M. ^{[4
]}

Reolid, Jesus ^{[3
]}

Eisermann, Jan Oliver ^{[1
]}

Emeis, Kay ^{[1
,5
]}

Rixen, Tim ^{[1
,6
]}

Bissessur, Dass ^{[7
]}

机构：

[1] Univ Hamburg, Inst Geol, Bundesstr 55, D-20146 Hamburg, Germany

[2] Vrije Univ Amsterdam, Earth Sci Dept, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands

[3] Univ Granada, Fac Ciencias, Dept Estratig & Paleontol, Ave Fuente Nueva S-N, Granada 18071, Spain

[4] Univ Malta, Fac Sci, Dept Geosci, Msida 2080, Msd, Malta

[5] Helmholtz Zentrum Geesthacht, Max Planck Str 1, D-21502 Geesthacht, Germany

[6] Leibniz Zentrum Marine Tropenforsch, Fahrenheitstr 6, D-28359 Bremen, Germany

[7] Dept Continental Shelf Maritime Zones Adm & Explo, 12 Intendance St, Port Louis 11328, Mauritius

来源：

GEOLOGY | 2021年 / 49卷 / 12期

关键词：

PLATFORM DEVELOPMENT; MALDIVES; CLIMATE; REEF; PLATEAU;

D O I：

10.1130/G49090.1

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Carbonate platforms are built mainly by corals living in shallow light-saturated tropical waters. The Saya de Malha Bank (Indian Ocean), one of the world's largest carbonate plat-forms, lies in the path of the South Equatorial Current. Its reefs do not reach sea level, and all carbonate production is mesophotic to oligophotic. New geological and oceanographic data unravel the evolution and environment of the bank, elucidating the factors determining this exceptional state. There are no nutrient-related limitations for coral growth. A switch from a rimmed atoll to a current-exposed system with only mesophotic coral growth is pro-posed to have followed the South Equatorial Current development during the late Neogene. Combined current activity and sea-level fluctuations are likely controlling factors of modern platform configuration.

引用

页码：1431 / 1435

页数：5

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