In the Persian Gulf, Acropora- dominated coral reefs have been damaged by global and local disturbances. Inversion of coral colonies mostly occur due to anchoring and fishing in many coral reefs, particularly those established nearby human societies, like the coral reef of Hengam Island, in the Persian Gulf. The short term growth rates (weight increment) of inversely and normally transplanted c...

The mechanical and deformation mechanism of coral-reef limestone is vital for the stability safety infrastructures built on ground composed those materials. Upon loading, strain softening behavior occurs, usually due to nonuniform cementation distribution, within samples may break up gradually reduce bearing capacity. In order study their features, uniaxial compression tests were carried out in...

the persian gulf is northern part of the ropme sea area (rsa), and is semi-enclosed shallow sea which located in subtropical climate. measuring is 1000km in length, varying in width 60-340km, and average depth is about 35m and maximum depth is 105m. this research was carried out during 2005-2010 for reviewing the corals status and determination of coral reef habitats distribution in the persian...

Sedimentological, geochemical, and chronological analyses were carried out on 18 carbonate rock samples collected at depths of 938, 1085, 3354 m the western slope Minamitorishima (Marcus Island), which is located near margin Pacific Plate. Four groups rocks distinguished: a mollusk-rich limestone, coral-rich dolomite, foraminiferal-nannofossil packstone, phosphatized mudstone/wackestone. The li...

Sea-level changes through the Quaternary era have provided recurrent opportunities for the biosphere to significantly shape the coastal geomorphology of eastern Africa. Key agents in this shaping have been the calcium carbonate-fixing biota that have constructed the oceanfacing fringing reefs and produced the extensive backreef sediments that form the limestone platforms, cliffs and terraces th...

In order to study the characteristics of pile–rock action steel pipe driven pile in coral reef limestone stratum, at China–Maldives Friendship Bridge site was selected carry out indoor physical and model tests with red sandstone as control group. The test outcomes indicate following: (1) when substantial deformation is permitted, has a considerable strength dispersion, low post-peak stress decr...

Palaeobiogeographical and palaeodiversity patterns of scleractinian reef corals are generally biased due to uncertain taxonomy and a loss of taxonomic characters through dissolution and recrystallization of the skeletal aragonite in shallow marine limestones. Herein, we describe a fossil lobophylliid coral in mouldic preservation from the early middle Miocene Leitha Limestone of the Central Par...

A fast, quantitative image analysis technique was developed to assess potential rock weathering by bacteria. The technique is based on reduction in the surface area of rock particles and counting the relative increase in the number of small particles in ground rock slurries. This was done by recording changes in ground rock samples with an electronic image analyzing process. The slurries were p...

Originally described from limited exposures in central Noble County, Ohio, the Noble Limestone Member (Congemaugh Group, Pennsylvanian) has recently been discovered at three additional localities in northern Noble County and eastern Guernsey County. The Noble Limestone Member overlies the fresh-water Ewing Limestone Member and occurs beneath the Rock Riffle Run Limestone Member, at a position a...

Coral reef ecosystem is an that plays a vital role as spawning floor, feeding floor and nursery ground for marine biota. This study aims to determine the survival in growth rate of Acropora sp Porites corals transplanted using frame media. research was done Kecinan Coastal Waters, Malaka Village, Pamenang District, North Lombok Regency. West Nusa Tenggara. The method used this experimental with...