#river flow

• Alluvium — A secondary, regional, or archaic form of the noun 'aluviune'; a sedimentary mass consisting of silt, sand, gravel, and organic debris transported and deposited by running waters in floodplains, deltas, or at river mouths. In certain old agricultural documents, the term describes new land formed by fluvial accumulation at the edge of a property.
• Alluvium — An alternative secondary, archaic, or regional form of the noun 'aluviune'; a sedimentary deposit composed of silt, sand, clay, and detrital gravel, transported by running waters and dropped in areas where the current velocity decreases. In old agricultural documents, the term referred to new strips of fertile land added to riverbanks following seasonal floods.
• Anaclinal — Flowing or oriented in a direction opposite to the dip of structural geological strata; said of a valley or a watercourse that traverses a relief by cutting through rocky layers contrary to their natural deposition slope. It represents a fundamental concept in hydrographic network analysis, often indicating very old watercourses that predate the tectonic movements that tilted those strata.