Sands are fascinating study objects for the layman and the expert alike. Each sample reflects a multitude of factors which affected its texture (e.g., size, sorting, rounding) and its mineralogical composition. These factors can be inferred by careful studies. Sands can be considered elements in the Earth's everlasting cycle of weathering, transport, sedimentation, diagenesis, metamorphism und uplift. They bridge regions undergoing erosion and regions allowing sedimentation; they thus yield information on both. In addition, sands are the precursor to sandstones which act as subsurface reservoirs to oil, gas, and water. This wiki is meant to provide a base for the scientific study of natural sands by allowing contributors to add their own samplesfreely browse ("Blättern") or to add your own sample .. I encourage the addition of typical or of exotic sands if they are well documented and appropriately described .Please browse through the database ("Blättern") or add your own sample . |