Coarazuphium caatinga sp. n. occurs in limestone caves located in Campo Formoso municipality, in the Brazilian Caatinga (Bahia, Brazil). The new species is close to C. formoso although they are morphologically distinct by the elytra sinuosity, which is more pronounced in C. caatinga; the aedeagus is more tapered at the tip in this last species. Important traits found in C. caatinga are the vari...

The evolution of meandering rivers continues to attract considerable attention in research and for practical applications, given that it is closely associated with the safety river systems riparian zones. There has been much discussion regarding various channel planform features exhibited by under different conditions. Yimin River a good example located southeast Hulun Buir Grassland, which cha...

the study area, paykola anticline, is located in the southwestern part of kermanshah province. the aim of this research is to evaluate the geomorphological indexes of active tectonics in paykola anticline as well as to study the effect of tectonic in the form and direction of geomorphological landforms. to achieve the aim of study, the lithological and tectonic characteristics of study area wer...

Kabani river is a 7 order stream with a basin area of 1647 km. There are 4 sixth order and11 fifth order sub-basins. This analysis is mainly confined to 11 fifth order sub basins. Morphometric indices like stream ordering, bifurcation ratio, stream length, drainage density, stream frequency, form factor, elongation ratio, circularity ratio, constant of channel maintenance, asymmetry factor, sin...

This study investigates the contribution of river morphology towards occurrence manganese (Mn) in both sediment and surface water (SW), considering temporal climatic spatial conditions. The Boac Mogpog rivers on island province Marinduque, Philippines, were examined this study. These are downstream two abandoned open mine pits at San Antonio Tapian, where mining disasters occurred 1993 1996, re...

Over a century after Wallace’s proposition of the riverine barrier hypothesis, role rivers in diversification species remains matter interest Amazon biogeography. Amazonian rivers, particular those large and fast flowing are widely recognized to act as barriers dispersal some organisms. However, extent which primate changes across interfluves (β-diversity) response river features be explicitly ...

the tabriz fault in northwest of iran is the important geological structure in our country which historical earthquakes were recorded around it. the purpose of this paper is the study of tabriz fault seismotectonic activity. the method of research is drawing 23 cross section vertical to tabriz fault between tabriz and bostan-abad distinguish mountain-front faceting, mountain-front sinuosity and...