dc.contributor.author | Githiri, JG | |
dc.contributor.author | Patel, JP | |
dc.contributor.author | Barongo, JO | |
dc.contributor.author | Karanja, PK | |
dc.date.accessioned | 2013-07-04T12:30:17Z | |
dc.date.available | 2013-07-04T12:30:17Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | JG Githiri, JP Patel, JO Barongo and PK Karanja (2012). Spectral analysis of ground magnetic data in Magadi area, Southern Kenya rift. Tanz. J. Sci. Vol 38 (1) | en |
dc.identifier.uri | http://www.ajol.info/index.php/tjs/article/view/79842 | |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/45299 | |
dc.description.abstract | The area surrounding Lake Magadi in the southern Kenya rift is characterized by hot springs that
issue from fractures distributed along the shores of the lake. Presence of earthquake swarms that
cluster in northern margin of Lake Magadi strongly indicate magmatic activity in the area. This
study was done as a follow-up to investigate depth to the heat source possibly causing high
seismic activity and high heat flow in the area. A ground magnetic survey was conducted to
investigate geothermal potential of the area and a magnetic anomaly contour map prepared.
Spectral analysis involving determining power spectrum was applied to magnetic data along
selected profiles cutting through discerned anomalies. Spectral analysis results suggest that the
Curie-point isotherm depth under Magadi ranges from 5.20 km to 8.30 km. Estimated vertical
temperature gradients along the profiles ranges from 111.53°C/km to 69.92°C/km. The high temperature
gradients and relatively shallow Curie point depths indicates high heat flow which
suggests presence of a hot magmatic intrusion. | en |
dc.language.iso | en | en |
dc.title | Spectral analysis of ground magnetic data in Magadi area, Southern Kenya rift | en |
dc.type | Article | en |
local.publisher | Jomo-Kenyatta University of Agriculture, Science and Technology, Department of Physics | en |
local.publisher | University of Nairobi, Department of Physics | en |
local.publisher | University of Nairobi, Department of Geology | en |
local.publisher | Jomo-Kenyatta University of Agriculture, Science and Technology Department of Physics | en |