Oligomictic alluvial aggregates: petro-mineralogical and geochemical evaluation of sandy gravel formations on the middle course of the Danube (Hungary)

Abstract This paper evaluates the applicability of Hungarian oligomictic alluvial gravel formations at two sections Danube river for construction use. The classification these aggregates is more challenging than monomictic rock due to their heterogeneous nature. Multi-source clastic sediments cannot be characterized by single values physical properties but only a distribution, and they are generally less predictable materials. possible applications in concrete manufacturing were evaluated complex macro-microscopic petrographic, heavy mineral nuclear analytical geochemical investigations. regions falling on middle course have similar sandy formations, applicable as conventional unconventional building purposes or road construction. Their utilization open-air constructions might problematic probable alkali-silica reactivity.