Issaouane Erg confined to basins. Sand in the Issaouane Erg, below the level of the sand dunes, has accumulated to a depth of 20 to 30 meters. It has barchan dunes as well as star dunes of 300 to 430 meters high. The presence of both barchan dunes (which form due to unidirectional winds) and star dunes (which form when winds from various directions deposit sand) "suggests that wind regimes have changed over time". NASA's "Earth Observatory" notes all three types of erg dunes are present in the photos of the Issaouane Erg taken from the International Space Station: stationary mega dunes,
Mana ERG Mana ERG Mana ERG is the musical project of ex recording engineer and multi-instrumentalist Bruno De Angelis. Born in Rome and grown up in London, he gained experience by recording and producing bands playing very different genres. This had a direct influence on his music, a genre-defying blend of industrial, ethereal, ebm, electronica, and rock elements. Bruno's closest collaborators, who also assist him in the production, are Joe Erber (piano and keyboards) and Tiberio (guitars), but quite often they are joined by special guests such as soprano Deborah Roberts, who, with her crystal clear and yet warm vocals, adds an