Drainage incision, tectonic uplift, magmatic activity, and paleo-environmental changes in the Kenya Rift, East African Rift System: A morpho-tectonic analysis

Xue, Liang; Gani, Nahid D.; Abdelsalam, Mohmand G.

doi:10.1016/j.geomorph.2019.106839

Cited by 12 publications

(4 citation statements)

References 72 publications

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“…The application of morpho-tectonic indices along continental-scale features has been discussed in many studies [6,57,63,69,70]. Various analyses have been applied to the relationship between two morphometric indices (Smf and Vf) to present a primary quantitative model of the levels of tectonic activity of mountain fronts.…”

Section: Relative Tectonic Activity Levels Discussionmentioning

confidence: 99%

“…In this study, we t focused only on areal features (catchments and sub/catchments) and averaged the results from the same bodies or features. In addition, many researchers (e.g., [9,70]…”

Section: Relative Tectonic Activity Levels Discussionmentioning

confidence: 99%

“…In this study, we t focused only on areal features (catchments and sub/catchments) and averaged the results from the same bodies or features. In addition, many researchers (e.g., [9,70] The Wadi Al-Arish catchment was investigated using morpho-tectonic indices for the first time, and low tectonic activity signals covered the largest parts of the study catchment. The tectonic analysis show that the high values (low tectonic signals) for the RTAL were observed in the north to northwest parts of Wadi Al-Arish region.…”

Section: Relative Tectonic Activity Levels Discussionmentioning

confidence: 99%

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GIS-Analysis for Active Tectonics Assessment of Wadi Al-Arish, Egypt

et al. 2023

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In this paper, we apply an effective method to evaluate relative tectonic activity by applying several morph-tectonic indices that are useful in evaluating topography and tectonics. These indices include stream length-gradient, asymmetric factor, hypsometric index, hypsometric curves, valley floor width to valley height ratio, drainage basin shape, and mountain front sinuosity. The study region of Wadi Al-Arish in northern Sinai Peninsula in northern Egypt is a natural laboratory to examine relative tectonic activity levels for calculating morpho-tectonic indices of several catchments and sub-catchments rather than an individual catchment. Northern Sinai, comprising the Waid Al-Arish area, is characterized by several large inversion anticline folds. The cumulative results extracted from morpho-tectonic indices ae presented as a new index, namely relative tectonic activity level (RTAL), which we classified into four levels: low, moderate, high, and very high relative tectonic activity. Therefore, the study region provides different levels of relative tectonic activity resulting from fault patterns affecting the northern Sinai inversion forms. The paper examines the concept that regions with various levels of tectonic activity are associated with specific values of RTAL.

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Section: Relative Tectonic Activity Levels Discussionmentioning

confidence: 99%

“…In this study, we t focused only on areal features (catchments and sub/catchments) and averaged the results from the same bodies or features. In addition, many researchers (e.g., [9,70]…”

Section: Relative Tectonic Activity Levels Discussionmentioning

confidence: 99%

Section: Relative Tectonic Activity Levels Discussionmentioning

confidence: 99%

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GIS-Analysis for Active Tectonics Assessment of Wadi Al-Arish, Egypt

et al. 2023

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“…The present geomorphologic set up of the study area is the combined result of complex interaction between geologic, tectonic and paleo-climatic variables (Xue et al 2019). Geomorphology is affected by prevailing geologic structure, underlying geologic formation and surficial processes (Rajaveni et al 2017) and plays an essential role on the occurrence, distribution and movement of groundwater (Fenta et al 2014;Patra et al 2018).…”

Section: Geomorphologymentioning

confidence: 99%

Appraising groundwater potential zones using geospatial and multi-criteria decision analysis (MCDA) techniques in Andasa-Tul watershed, Upper Blue Nile basin, Ethiopia

et al. 2021

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Ever increase in population growth and drastic climatic changes augment the demand and exploration of groundwater from time to time. An integrated approach of remote sensing (RS), geographic information system (GIS) and multicriteria decision analysis (MCDA) of analytical hierarchical process (AHP) were applied to delineate groundwater potential (GWP) zones in Andasa-Tul watershed, Upper Blue Nile Basin, Ethiopia. For this purpose, nine GWP influencing thematic layers comprising lithology, lineament density, geomorphology, slope, soil, drainage density, land use/land cover, rainfall and depth to groundwater level were used. The thematic layers and classes within them were given scale values based on literature and experts' decision and calculated using Satty's AHP. The thematic layers have been integrated via their weights/rates using weighted overlay spatial function tool of ArcGIS to provide GWP map. The result shows that GWP map comprises very good (13.4%), good (7%), moderate (23.6 %), poor (35.4%) and very poor (20.5%) zones. Validation of the GWP map with existing water point yields shows 84.21 % agreement indicating good accuracy of the method. The map removal sensitivity analysis result reveals that GWP is more sensitive to lithology (mean variation index, 1.92 %) and less sensitive to geomorphology (mean variation index, 0.59 %). Similarly, from the single layer sensitivity analysis, lithology and slope are found to be more effective parameters, whereas rainfall and depth to groundwater level are less effective variables.

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Geology of the Kenya Rift: An Introduction

Renaut,

Owen

2023

Syntheses in Limnogeology

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Drainage incision, tectonic uplift, magmatic activity, and paleo-environmental changes in the Kenya Rift, East African Rift System: A morpho-tectonic analysis

Cited by 12 publications

References 72 publications

GIS-Analysis for Active Tectonics Assessment of Wadi Al-Arish, Egypt

GIS-Analysis for Active Tectonics Assessment of Wadi Al-Arish, Egypt

Appraising groundwater potential zones using geospatial and multi-criteria decision analysis (MCDA) techniques in Andasa-Tul watershed, Upper Blue Nile basin, Ethiopia

Geology of the Kenya Rift: An Introduction

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