The endo-upwelling concept: from geothermal convection to reef construction

  title={The endo-upwelling concept: from geothermal convection to reef construction},
  author={Francis Rougerie and Bruno Wauthy},
  journal={Coral Reefs},
Measurements of interstitial waters in deep wells (0–500 m) in Mururoa and in shallow bores (0–35 m) in Tikehau (French Polynesia) have shown high contents of dissolved nutrients and relatively low salinities, implying a deep oceanic origin. Studies of specific thermal fields within these atolls and carbonate platforms have led to models of deep oceanic water circulation by convection resulting from upward geothermal heat flow. Cold, low-salinity, low-pH, high-CO2, nutrient-rich deep oceanic… 
Reef metabolism and endo-upwelling in perspective
Rougerie and Wauthy (1993) have recently advanced the concept of endo-upwelling to explain high rates of metabolism for oceanic coral reefs and atolls. The principal hypothesis advanced in this and
The occurrence and chemical implications of geothermal convection of seawater in continental shelves
Geothermal convection is an important driving force for fluid flow and diagenesis in carbonate platforms, and the similar shape of continental shelves in general suggests that geothermal convection
Chapter Seven Reef Hydrogeology
Th e primary function of reef builders, from a geological perspective, is the in situ production of carbonate sediment at a relatively high rate to create a biogenic carbonate body with relief above
Geophysical and geochemical evidence of large scale fluid flow within shallow sediments in the eastern Gulf of Mexico, offshore Louisiana
We analyse the fluid flow regime within sediments on the Eastern levee of the modern Mississippi Canyon using 3D seismic data and downhole logging data acquired at Sites U1322 and U1324 during the
Reef framework diagenesis across wave-flushed oxie-suboxie-anoxic
  • Environmental Science
  • 2005
The temporal and spatial variability of inorganic nutrient concentrations in overlyingand interstitial-seawater in Checker Reef, Oahu was examined for response to incident wave magnitude and
Mid-oceanic shallow-water carbonates of the Panthalassa domain: new microfacies data from the Sambosan Accretionary Complex, Shikoku Island, Japan
During the Late Triassic, carbonate platforms expanded on continental shelves and island arcs. They have been studied in detail in the Tethys realm but coeval mid-oceanic shallow-water environments


Dolomitization by Groundwater-Flow System in Carbonate Platforms
ABSTRACT Dolomite occurs throughout the subsurface of modern carbonate platforms such as the Bahamas. Groundwater-flow systems must be responsible for delivery of reactants needed for dolomitization.
Internal Hydrology and Geochemistry of Coral Reefs and Atoll Islands: Key to Diagenetic Variations
Diagenetic changes in coral reef carbonates continue to generate both interest and controversy. Considerable attention has been devoted to carbonate porosity (Choquette and Pray 1970, Enos and
Upwelling as a source of nutrients for the Great Barrier Reef ecosystems: a solution to Darwin's question?
The Great Barrier Reef shelf ecosystem is examined for nutrient enrichment from within the seasonal thermocline of the adjacent Coral Sea using moored current and temperature recorders and chemical
Geothermal springs of the West Florida continental shelf: Evidence for dolomitization and radionuclide enrichment
Dolomitization of Atolls by Sea Water Convection Flow: Test of a Hypothesis at Niue, South Pacific
The core of the former atoll on Niue island, South Pacific, is extensively dolomitized. A detailed stable isotope study reveals that the dolomites are uniformly enriched in 18O and 13C(δ18O = 2.8‰ ±
Coral-reef hydrology: field studies of water movement within a barrier reef
Water movement through the framework of Davies Reef, a coral reef in the central Australian Great Barrier Reef, was studied using field and laboratory determinations of permeability, tide gauge
Petrologic and geochemical constraints on the origin of subsurface dolomite, Enewetak Atoll: An example of dolomitization by normal seawater
Dolomite is present 1,250–1,400 m below sea level in Eocene strata of Enewetak Atoll. Petrographically, the deep Enewetak dolomite postdates brittle compaction of rigid grains in the host Eocene
Enewetak (Eniwetok) Atoll: Aspects of the nitrogen cycle on a coral reef1
Changes in the concentrations of dissolved and particulate nitrogen in seawater crossing two interisland reef transects on Enewetak Atoll were measured. The upstream half of transect II consisted
Primary Production in the Northwestern Part of the Pacific off Honshu, Japan
The primary productivity in the northwestern Pacific was discussed on the basis of the results obtained during the summer cruise in 1961. 1) Vertical stratification of phytoplankton was clearly