Subdivision and correlation of monotonous sandstone sequences using high-resolution heavy mineral analysis, a case study: the Triassic of the Central Graben

The subdivision and correlation of monotonous siliciclastic sequences with poor biostratigraphic control and few lithostratigraphic markers has long been a problem. The need to find an efficient approach is even greater for subsurface sequences where information from cores and wireline logs has proved inadequate. In this short paper a novel approach, high-resolution heavy minerals analysis (HRHMA), is introduced, which is particularly suitable for the subdivision of problematical clastic sediments where other techniques are inconclusive. A full paper, which will present the technique in more detail, will be published shortly.