The geology of the Arun Field, Miocene reef complex

2018 ◽  
Author(s):  
M. Abdullah
Keyword(s):  
Reef Complex

High-resolution sidescan-sonar imagery of the Manchas Interiores-Manchas Exteriores coral reef complex, Mayaguez, Puerto Rico

1992 ◽  
Author(s):  
William C. Schwab ◽  
R.M. Webb ◽  
W.W. Danforth ◽  
T.F. O'Brien ◽  
B.J. Irwin
Keyword(s):  
Puerto Rico ◽  
Coral Reef ◽  
High Resolution ◽  
Sidescan Sonar ◽  
Reef Complex

scholarly journals Turbid Coral Reefs: Past, Present and Future—A Review

Diversity ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 251
Author(s):  
Adi Zweifler (Zvifler) ◽  
Michael O’Leary ◽  
Kyle Morgan ◽  
Nicola K. Browne
Keyword(s):  
Climate Change ◽  
Coral Reef ◽  
Coral Reefs ◽  
Environmental Change ◽  
Scientific Literature ◽  
Conservation Status ◽  
Climate Change Impacts ◽  
Geographic Range ◽  
Reef Complex ◽  
Sediment Input

Increasing evidence suggests that coral reefs exposed to elevated turbidity may be more resilient to climate change impacts and serve as an important conservation hotspot. However, logistical difficulties in studying turbid environments have led to poor representation of these reef types within the scientific literature, with studies using different methods and definitions to characterize turbid reefs. Here we review the geological origins and growth histories of turbid reefs from the Holocene (past), their current ecological and environmental states (present), and their potential responses and resilience to increasing local and global pressures (future). We classify turbid reefs using new descriptors based on their turbidity regime (persistent, fluctuating, transitional) and sources of sediment input (natural versus anthropogenic). Further, by comparing the composition, function and resilience of two of the most studied turbid reefs, Paluma Shoals Reef Complex, Australia (natural turbidity) and Singapore reefs (anthropogenic turbidity), we found them to be two distinct types of turbid reefs with different conservation status. As the geographic range of turbid reefs is expected to increase due to local and global stressors, improving our understanding of their responses to environmental change will be central to global coral reef conservation efforts.

scholarly journals Depositional Architecture and Facies of a Complete Reef Complex Succession: A Case Study of the Permian Jiantianba Reefs, Western Hubei, South China

Minerals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 533
Author(s):  
Beichen Chen ◽  
Xinong Xie ◽  
Ihsan Al-Aasm ◽  
Wu Feng ◽  
Mo Zhou
Keyword(s):  
Upper Permian ◽  
Field Observations ◽  
Comprehensive Description ◽  
Reef Facies ◽  
Reef Complex ◽  
Sedimentary Succession ◽  
Western Hubei ◽  
Depositional Architecture ◽  
Marginal Reef

The Upper Permian Changhsingian Jiantissanba reef complex is a well-known platform marginal reef, located in the western Hubei Province, China. Based on field observations and lithological analysis of the entire exposed reef complex, 12 reef facies have been distinguished according to their sedimentary components and growth fabrics. Each of the lithofacies is associated with a specific marine environment. Vertically traceable stratal patterns reveal 4 types of the lithologic associations of the Jiantianba reef: (1) heterozoan reef core association: developed in the deep marginal platform with muddy composition; (2) photozoan reef core association developed within the photic zone; (3) tide-controlled reef crest association with tidal-dominated characteristic of lithofacies in the shallow water; and (4) reef-bank association dominated by bioclastic components. The entire reef complex shows a complete reef succession revealing a function of the wave-resistant and morphological units. This study displays a complete sedimentary succession of Jiantianba reef, which provides a more accurate and comprehensive description of the reef lithofacies and a better understanding of the structure and composition of organic reefs.

scholarly journals LOS ARRECIFES DE LA ISLA DE SAN ANDRÉS (MAR CARIBE, COLOMBIA)

2016 ◽  
Vol 7 ◽  
Author(s):  
Jörn Geister
Keyword(s):  
Wave Energy ◽  
Maximum Degree ◽  
Caribbean Sea ◽  
High Energy ◽  
Reef Crest ◽  
Acropora Palmata ◽  
Reef Complex ◽  
Western Caribbean ◽  
The Caribbean ◽  
San Andres

The windward reef complex NE and E of San Andrés Island is briefly described in terms of submarine topography, sediments and the distribution of corals and other benthonic organisms. The breaker zone of the San Andrés barrier and other exposed Western Caribbean reefs characteristically exhibits a profuse growth consisting almost exclusively of Millepora. In this respect they are different from most other described West Indian reef localities, where Acropora palmata is the dominating species in this part of the reef. The replacement of Acropora palmata by Millepora is interpreted as an adaptation of the reef crest community to high energy environments due to long swell prevailing at the Western end of the Caribbean Sea. A few short reef sections exposed to the maximum degree of wave energy show conspicuous algal ridges.

ROSIGNANO REEF COMPLEX (MESSINIAN), LIVORNESI MOUNTAINS, TUSCANY, CENTRAL ITALY

1996 ◽  
pp. 277-294 ◽  
Author(s):  
ALESSANDRO BOSSIO ◽  
MATEU ESTEBAN ◽  
RENZO MAZZANTI ◽  
ROBERTO MAZZEI ◽  
GIANFRANCO SALVATORINI
Keyword(s):  
Central Italy ◽  
Reef Complex
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