Red Sea region

Sediments 8 S.E. Pacific (D)" 18.94 15.82 Red Sea Region (from south to north) 39.38 Chow and Patterson (1962a)... 

Lead isotopes of the Red Sea region. Earth Planet. Sci. Letters 5, 143—147 (1968b). 

Coral reefs are not exeirq) from urbanization, either directly to provide new space, or indirectly, like in Sri Lanka, where the traditional coral mining of lime for the construction industry dates to at least 400 years ago. It has taken a steep rise in the last three decades, endangering this particularly fragile ecosystem. In very dry regions, like the Red Sea coasts, simply discharging waters from hotel resources also heavily threatens the coral reef. Even eutrophication of the waters damages the coral... 

Gum resins include myrrh, which exudes from the trunk and branches of Commiphora myrrha, a tree growing in the region around the Red Sea. The lumps of resin are used medicinally, and also in making incense. 

To estimate flux Kp, we take into account information on the moisture balance in the region of the Red Sea. According to available estimates, the input of water to the... 

Salinity is defined here as the grams of dissolved solids (or inorganic dissolved compounds) per kg of seawater, or parts per thousand (or as a per thou-sand%o). Alternatively, it can be defined as the mg/L or mmol/L of the major ions (i.e., those present in concentrations above 1 ppm). The total concentration of dissolved solids ranges from 7,000 ppm for the Baltic Sea, to an average of 35,000 ppm in large oceans, and up to 40,000 ppm in regions where evaporation is high and inputs are low, such as the Red Sea. 

The potential of the marine environment as a source of novel drugs has already been discussed. The NCI contract collection program has been expanded to the waters off East and Southern Africa, and expansion to under-explored regions, such as the Red Sea is being considered. These collections are performed in close collaboration with organizations based in the countries controlling the relevant waters. 

The third major region is the northeastern Sudan. . . vast dust storms form when cold northwesterly air currents meet hot southwesterly monsoons. At such times masses of dust may be raised over large areas encompassing the region of the northeastern Sudan from the Nile River to the Red Sea. High-altitude winds often transport this dust across the Red Sea to the Arabian Peninsula. 

The first two pathways of formation will not be discussed here as they were found to be only of local/regional importance and are not eonsidered to be of major importance for early diagenetic reactions. Iron bearing clay mineral formation under high-temperatnre conditions near a hydro-thermal system of the Red Sea was studied by Bischoff (1972). A direct precipitation of an iron-rich smectite (nontronite) within the metalliferons sediments was found. This pathway of clay mineral formation was shown to occur at temperatures... 

Presently, maximum tritium concentrations in the surface waters of the oceans are approximately 1.5 to 2 TU in the northern hemisphere and 0.20 to 0.75 TU in the southern hemisphere. Regions that receive high concentrations of runoff such as the Arctic Ocean or locations surrounded by continents such the Mediterranean and Red seas exhibit elevated tritium concentrations. 

This approach has been used quite successfully, for example, by Christophe Mon-nin (1989) to model densities of concentrated, multi-component natural brines based on volumetric data from one- and two-salt systems. Monnin s predictions agree very well with observations made on natural brines in settings such as the Red Sea and Persian Gulf sabkha regions. 

This isostatic approach assumes a local isostatic response of the lithosphere to the load. The stretching of the lithosphere or its cooling from a warmer state is believed to account for the subsidence of the basement surface, whereas the thermal activation of the basement is assumed to result in raising of the basement surface. The high relief near the Red Sea is an example of a thermal activity action the Afar region is a result of simultaneous action of stretching and thermal activation of the basement. 

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