Fan-shaped sedimentary landforms on Mars are important geomorphic markers of past water flow and characterizing the distribution morphology these features can yield insights into planet's climatic evolution. We present a new database 1501 martian fan-shaped that builds upon previous surveys uses Context Camera images. This comprehensive global survey includes both alluvial fans putative deltas,...

Abstract. Sediment supply is widely believed to be a key control on alluvial fan morphology and channel dynamics. Although the sediment natural fans rather episodic, experimental studies of often use constant rates, making it difficult relate dynamics magnitude frequency in field. This paper presents series experiments designed test impact episodic evolution We compare four experiments, each wi...

The outcropping Cretaceous siliciclastic sediments in the Al Bauga area in Northern Sudan reach a maximum thickness of about 30 meter. They rest with angular unconformity on tilted Precambrian basement rocks and are capped by Tertiary-Quaternary basalts forming a type of nonconformity. The sedimentary sequence was subdivided into three major units separated by two disconformities. The lower uni...

abstract: in this research, the relationship between geomorphologic factors with underground water resources in zahab plain (in west of kermanshah) has been analyzed using by analyzing-deducing and weighting methods. first, by using of pizometeric and exploratory well data, variation of water table in zahab plain has been comparative analysis with geomorphic unites and then, the zahab watershed...