This paper concerns the sedimentary successions deposited in Mandawa Basin after separation of East and West Gondwana during subsequent southwards drift Madagascar Late Jurassic to Early Cretaceous times. The aim this study was provide more specific details on sedimentation report mineralogical petrographical characteristics less well documented successions, namely Kipatimu, Mitole Nalwehe form...

Chaldoran area in NW of Iran has Mesozoic oceanic crust basement. The studied rocks of this region can be divided into three groups: ophiolitic gabbros and pillow lavas, ophiolitic volcanoclastics and Eocene lava flows. Ophiolitic mafic rocks show continental volcanic arc natures and Eocene lava flow shows OIB-like nature. During the Mesozoic,the Chaldoran region was situated in the active cont...

flood disaster is considered as a major natural hazard due to its devastatingeffects on the affected areas. determining the flood vulnerable areas is important fordecision makers in order to perform planning and management activities. geographicalinformation system (gis) is integrated with multi criteria decision analysis (mcda)used to analyze the flood vulnerable areas. the aim of this researc...

chaldoran area in nw of iran has mesozoic oceanic crust basement. the studied rocks of this region can be divided into three groups: ophiolitic gabbros and pillow lavas, ophiolitic volcanoclastics and eocene lava flows. ophiolitic mafic rocks show continental volcanic arc natures and eocene lava flow shows oib-like nature. during the mesozoic,the chaldoran region was situated in the active cont...

Preserved fold shapes usually reveal little about their kinematic evolution. Syntectonic strata preserved in growth synclines in contact with a fold, however, can permit ‘‘unfolding’’: a sequential reconstruction of fold growth backward through time from a geometry observed at present to an initial undeformed state. Such reconstructions can define the kinematics of fold growth. Growth strata as...

The interaction between sedimentation/erosion and faulting represents one of the most intriguing topics in landscape tectonics evolution. Only few studies have been able to document feedback sedimentary loading from field observations. Here, we focus on how sediment loading/unloading influences dynamics fault systems Fucino basin, Central Apennines (Italy). basin a remarkable case study with re...

Abstract Cretaceous is the key exploration target layer in eastern depression of North Yellow Sea basin, which has a good prospect for oil and gas exploration. Its huge resource potential attracted great attention from petroleum geologists. In this study, main rock types, reservoir space petrophysical characteristics controlling factors are studied through core observation, thin section identif...

ABSTRACT: Water quality of dam storage is highly affected by upstream environment and basin. Regarding other conducted studies, there exist various reasons such as some studies and general monitoring of dams which cause some main problems including salinity, chemical and microbial pollution eutrophication, and sedimentation. Chame-Gardalan Storage Dam in Ilam Province is one of the storages whi...

Soil erosion and sedimentation processes can be considered as serious eco-environmentalproblems. This study aimed to estimate the basin-wide erosion using the Revised UniversalSoil Loss Equation (RUSLE). The soil erosion parameters included rainfall erosivity mapgenerated from the rainfall data, soil erodibility extracted from the soil map, land cover andmanagement map produced from supervised ...