We discuss maar-diatremes and calderas as end-members on a spectrum of negative volcanic landforms (depressions) produced by explosive eruptions (note—we focus on calderas formed during explosive eruptions, recognizing that some caldera types are not related to such activity). The former are dominated by ejection of material during numerous discrete phreatomagmatic explosions, brecciation, and ...

One of the most fundamental insights for understanding how landscapes evolve is based on determining the extent to which topography was shaped by glaciers or by rivers. More than 10(4) years after the last major glaciation the topography of mountain ranges worldwide remains dominated by characteristic glacial landforms such as U-shaped valleys, but an understanding of the persistence of such la...

Introduction: Tyrrhena Terra is located in cratered and dissected Noachian terrains in the southern hemisphere [1] south of Isidia Planitia and north of Hellas basin. Tyrrhena Terra contains both highlands and a series of intercrater plains. In this region, many outcrops of phyllosilicates are observed by OMEGA spectrometer on many craters walls or ejecta [2, 3]. Several plains in Tyrrhena Terr...

Three hundred and twenty-eight geomorphology articles published in the last quarter of the 20th century were cited 20 or more times in Institute for Scientific Information (ISI) indices, as of 15 May 2001. At the close of the 20th century, wellcited geomorphology is highly multidisciplinary and interdisciplinary with the most dominant fields being in biological, civil engineering, earth science...

modeling areas exposed to oil pollution in the coastal city of bandar abbas using electre-i and ahp models 1-introduction persian gulf coasts, is considered if the beach oil - gas, fisheries, trading and residential. during the persian gulf coast of the role of communication and sea transportation due to the national and international trade, legal and illegal, from oil and gas activities and fi...

Abstract Submarine geomorphology underwent significant development in the second half of twentieth century, largely thanks to advances technology by military, navigation and hydrocarbon industry, which were later transferred academic commercial sectors. In this chapter we summarize key methods used submarine between 1950 2000, include sidescan sonar, multibeam echo sounder, reflection seismolog...

Shoreline is one of the coastal landforms which continuously changing in nature. Hence, monitoring shoreline change very obligate to understand and manage process. The objectives present study were i) identify detection (2012 2021) based on various statistical methods along Dahej coast, Gujrat. ii) forecast position after 10 years. DSAS tool Multi-dated satellite images (Sentinel-2 LISS-IV) use...