The Geological Survey Ireland (GSI), as partner and Work Package 7 (Minerals) leader of EMODnet Geology Phase III, are compiling information on marine gas hydrate deposits. EMODnet partners are submitting the spatial extent of mapped deposits and established information; here you can view data collated thus far. Oil and gas deposits include information such as deposit type, deposit sub type, economic feasibility, scale, status, operator, block name, data provider, host rock, area, depth to resource, references and comments.

The Geological Survey Ireland (GSI), as partner and Work Package 7 (Minerals) leader of EMODnet Geology Phase III, are compiling information on rock peg vein deposits. EMODnet partners are submitting the spatial extent of mapped deposits and established information; here you can view data collated thus far. Need abstract information here.....

The Geological Survey Ireland (GSI), as partner and Work Package 7 (Minerals) leader of EMODnet Geology Phase III, are compiling information on Polymetallic nodules. EMODnet partners are submitting the spatial extent of mapped polymetallic nodules and existing information; here you can view data collated thus far. The information presented here are of mapped extents of polymetallic nodules within participating surveys national Exclusive Economic Zones (EEZ). Polymetallic nodules are also known as manganese nodules. These ferromanganese concretions comprise mainly iron and ferromanganese oxides, with accessory minerals such as cobalt, copper and nickel, zinc, vanadium, platinum and molybdenum.

The GSI, as partner and Work Package 7 (Minerals) leader of EMODnet Geology Phase II, are compiling information on cobalt rich ferromanganese crusts. EMODnet partners are submitting the mapped extent of cobalt rich ferromanganese crusts and established information; here you can view data collated thus far. Cobalt rich ferromanganese crusts are metallic mineral deposits that often form at depths between 400 to 4000 metres, as thin layers on the flanks of seamounts and submarine volcanoes. The crusts accumulate when manganese, iron and trace metals including cobalt, copper, nickel and platinum dissolved in sea water are precipitated onto the volcanic substrate. Marine ferromanganese crust deposits are potential mineral resources that contain base metals and strategic and critical elements such as cooper (Cu), cobalt (Co), vanadium (V), nickel (Ni), titanium (Ti), platinum group elements (PGEs) or rare earth elements (REEs). Traditionally, marine precipitates are defined as: a) purely hydrogenetic when all constituents are derived from cold seawater, (b) diagenetic, when all constituents are derived from cold sediment pore water; and (c) hydrothermal when precipitation occurs in the vicinity of hydrothermal vent sites from fluids with temperatures higher than ambient bottom waters. Hydrogenetic Fe-Mn crusts occur throughout the global ocean on seamounts, ridges and plateaus, where currents have kept the rocks free of sediment for millions of years. Some ferromanganese (Fe-Mn) crusts exhibit a mixed origin, primarily either hydrothermal-hydrogenetic or hydrogenetic-diagenetic.

Evaporites are crystalline sedimentary rocks that form by the evaporation of natural brines. Having complex mineralogy, there are many varieties of evaporites; the most economically important minerals include: calcite, gypsum, anhydrite, halite, polyhalite, sylvite, carnallite, kainite, kieserite and anhydrite. Although evaporite deposits formed in ancient marine basins are extensive on land, many of these also extend beneath the sea, not only beneath the continental shelves but also under some marginal ocean basins. Present day occurrences of subsea anhydrite, potash and magnesium evaporite deposits have been described along the margins of the Mediterranean Sea as well as in the North Sea and West Baltic Sea.

The Geological Survey Ireland (GSI), as partner and Work Package 7 (Minerals) leader of EMODnet Geology Phase III, are compiling information on phosphorite deposits. EMODnet partners are submitting the spatial extent of mapped deposits and established information; here you can view data collated thus far. Phosphorite deposits are found in sedimentary rocks, sufficiently rich in phosphate minerals. Phospherites are authigenic mineral deposits, formed in situ on the sea floor; they generally occur in deeper waters than placer deposits and are primarily used in the phosphate fertiliser industry.

The Geological Survey Ireland (GSI), as partner and Work Package 7 (Minerals) leader of EMODnet Geology Phase III, are compiling information on marine placer deposits. EMODnet partners are submitting the spatial extent of known deposits and established information; here you can view data collated thus far. The placer deposit information presented here are locations with concentrations of detrital heavy metallic minerals or gemstones. The occurrences of such deposits are generally limited to the continental shelf regions less than 120m deep.

The Geological Survey Ireland (GSI), as partner and Work Package 7 (Minerals) leader of EMODnet Geology Phase III, are compiling information on marine placer deposits. EMODnet partners are submitting the spatial extent of known deposits and established information; here you can view data collated thus far. The placer deposit information presented here are locations with concentrations of detrital heavy metallic minerals or gemstones. The occurrences of such deposits are generally limited to the continental shelf regions less than 120m deep.

The Geological Survey Ireland (GSI), as partner and Work Package 7 (Minerals) leader of EMODnet Geology Phase III, are compiling information on Polymetallic nodules. EMODnet partners are submitting the spatial extent of mapped polymetallic nodules and existing information; here you can view data collated thus far. The information presented here are of mapped extents of polymetallic nodules within participating surveys national Exclusive Economic Zones (EEZ). Polymetallic nodules are also known as manganese nodules. These ferromanganese concretions comprise mainly iron and ferromanganese oxides, with accessory minerals such as cobalt, copper and nickel, zinc, vanadium, platinum and molybdenum.

Results of mapping and geothermal assessment of the Dublin Basin Carboniferous limestone.