Structurally controlled dolomitization typically involves the interaction of high-pressure (P), high-temperature (T) fluids with surrounding host rock. Such reactions are often accompanied by cementation and recrystallization, resulting hydrothermal dolomite (HTD) bodies including several ‘diagnostic’ rock textures. Zebra textures, associated boxwork textures breccias, widely considered to refl...

in carbonate systems, dolomites often form the best reservoirs .the dolomitized part of dalan(upper permian) and kangan(lower triassic) formations makes up the essential part of gas reservoirs in the south of iran. the dalan and kangan formations were dolomitized to various degrees in the areas of south of iran and- persian gulf.in most cases, dolomitization enhanced porosity and permeability o...

Multiple episodes of dolomitization the shallow marine carbonates Late Kingriali Formation resulted in regional scale mappable dolostone geobodies Kohat and Potwar sub-basins. With exception few unaltered patches host limestone, more than 90% studied formation are diagenetically altered by replacive dolomites with associated dolomite cementation. Petrographical geochemical data interpretation r...

The Meillon (Callovo-Oxfordian) and Mano (Tithonian) Formations are dolomitized carbonate reservoirs that actively produce oil gas (Aquitaine Basin, France). In this study, the dolomitization conditions of their counterparts exhumed in northwestern Pyrenees detailed using a combination field observations, petrography, fluid inclusion microthermometry, elemental isotopic geochemistry, U–Pb geoch...

The Chigbrak Formation in the Upper Ediacaran is one of important exploration targets Tarim Basin, NW China. However, no significant discoveries have been made this field, and unclear reservoir genesis factors restricting breakthrough. This study examined outcrops Aksu area northwestern Basin by using systematic descriptions petrologic features Formation. Samples were selected for tests stable ...

Replacement dolomite in the Latemar carbonate buildup developed when limestone was infiltrated by reactive fluid. Minor-element, trace-element, and oxygen and carbon isotope compositions of dolomite and precursor limestone constrain the origin of the fluid and fundamental aspects of the flow. Inferred salinity (similar to seawater); temperature (45°–85°C); Sr/Sr (0.7076–0.7079); Ca/Mg (<1.4); a...