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Integrated Remote Sensing and Geophysical Investigations of the Geodynamic Activities at Lake Magadi, Southern Kenyan Rift
المؤلفون المشاركون
Anifowose, Adeleye Yekini Biodun
Kuria, Zacharia Njuguna
Noomen, Marleen
Woldai, Tsehaie
Komolafe, Akinola Adesuji
المصدر
International Journal of Geophysics
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-15، 15ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-12-23
دولة النشر
مصر
عدد الصفحات
15
التخصصات الرئيسية
الملخص EN
The tectonic lineaments and thermal structure of Lake Magadi, southern Kenyan rift system, were investigated using ASTER data and geophysical methods.
Five N-S faults close to known hot springs were identified for geoelectric ground investigation.
Aeromagnetic data were employed to further probe faults at greater depths and determine the Curie-point depth.
Results indicate a funnel-shaped fluid-filled (mostly saline hydrothermal) zone with relatively low resistivity values of less than 1 Ω-m, separated by resistive structures to the west and east, to a depth of 75 m along the resistivity profiles.
There was evidence of saline hydrothermal fluid flow toward the surface through the fault splays.
The observed faults extend from the surface to a depth of 7.5 km and are probably the ones that bound the graben laterally.
They serve as major conduits for the upward heat flux in the study area.
The aeromagnetics spectral analysis also revealed heat source emplacement at a depth of about 12 km.
The relative shallowness implies a high geothermal gradient evidenced in the surface manifestations of hot springs along the lake margins.
Correlation of the heat source with the hypocenters showed that the seismogenetic zone exists directly above the magmatic intrusion, forming the commencement of geodynamic activities.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Komolafe, Akinola Adesuji& Kuria, Zacharia Njuguna& Woldai, Tsehaie& Noomen, Marleen& Anifowose, Adeleye Yekini Biodun. 2012. Integrated Remote Sensing and Geophysical Investigations of the Geodynamic Activities at Lake Magadi, Southern Kenyan Rift. International Journal of Geophysics،Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-463089
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Komolafe, Akinola Adesuji…[et al.]. Integrated Remote Sensing and Geophysical Investigations of the Geodynamic Activities at Lake Magadi, Southern Kenyan Rift. International Journal of Geophysics No. 2012 (2012), pp.1-15.
https://search.emarefa.net/detail/BIM-463089
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Komolafe, Akinola Adesuji& Kuria, Zacharia Njuguna& Woldai, Tsehaie& Noomen, Marleen& Anifowose, Adeleye Yekini Biodun. Integrated Remote Sensing and Geophysical Investigations of the Geodynamic Activities at Lake Magadi, Southern Kenyan Rift. International Journal of Geophysics. 2012. Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-463089
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-463089
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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