Open atollKarst IslandMaratua IslandSlip faultAtol formationEnvironmental Earth Sciences - This study aims at reconstructing the mechanism explaining the formation of the V-shaped open atoll of Maratua Island. The reconstruction was conducted by examining......
His theory has endured until modern times in spite of a number of opposing ideas and permutations and has an enviable longevity amongst paradigms in geomorphology. Darwin frequently alluded to the generally circular morphology of the atoll shape, yet the reality is that many atolls are neither ...
Formation of an atoll (3) out of a fringing reef (1) and a barrier reef (2). The original island submerges due to tectonic processes.(after Darwin, 1882)Copyright © 1882 Today still three more theories are discussed: • The glacial – control theory (Daly, 1915, Kuenen, 1947) (...
The Atlantic Ocean may be described as a bed of water with temperatures below 9°C (layer of cold water) supporting a water bubble over 9°C (layer of warm water), which extends from 50° latitude N 50°S latitude and has an average depth of about 600 m. The most pronounced circulati...
Bubble-bursting aerosols have a key role in mass and momentum transfer across interfaces. Previous studies report that the bursting of a millimetre-sized bare bubble at an aqueous surface produces jet drops with a typical size on the order of 100 μm.
I find from Mr. Couthouy’s pamphlet (page 58) that Aurora Island is about two hundred feet in height; it consists of coral-rock, and seems to have been formed by the elevation of an atoll. It lies north-east of Tahiti, close without the line bounding the space coloured dark blue in...
over hundreds of thousands of years. When seas fall, exposing a pre-existing pile of carbonate rocks, rainwater dissolves the center of those rocks and leaves behind a depression. When seas rise, corals build themselves up in a ring around that depression, forming an at...
These were cleaned both surficially, and with an ultrasonic cleaner, and treated in a mild bath of HCl to remove surface encrustations. Samples were submitted to radiocarbon dating laboratories at Quaternary reef development The surficial deposits on the atoll are all Holocene in age; Pleistocene...
Microbially induced calcification is an ancient, community-driven mineralisation process that produces different types of microbialites. Symbiolites are photosynthesis-induced microbialites, formed by calcifying co-cultures of dinoflagellates from the fa
Coral Reef Formation involves a variety of processes operating at different spatial scales, and our discussion of how coral reefs are formed