Publications

Found 73 results

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2009
Nyambok IO. "Petrology and geochemistry of the alkaline intrusion, Jombo Hill, Kenya.". 2009. AbstractPetrology and geochemistry of the alkaline intrusion, Jombo Hill, Kenya

The field occurrence and the known immiscibility between silicate and carbonate melts suggest the Jombo alkaline intrusion and Mrima carbonatite intrusion have come from the same magmatic source. However, only the ijolite series apparently originated from a magma body at Jombo hill intrusion, while the feldspathoidal syenite series appears to have resulted from metasomatic alteration of the country rock-sandstone. The K/Rb ratios seem to indicate a mantle origin for the ijolites and a crustal one for the feldspathoidal syenites. The feldspathoidal syenite series were presumably formed by alkali metasomatism, resulting from magmatic fluid infiltration through intergranular movement. It is suggested that the partitioning of K and Na components in the metasomatizing fluid and solid feldspar phases at different temperatures, was the cause of two rock types – albite nepheline syenite and orthoclase nepheline syenite.

2000
O PROFNYAMBOKISAAC. "Ground subsidence and its socio-economic implications on the population: A case study of Nakuru area in Central Rift Valley, Kenya.". In: Environmental Geology. 39(6), 567-574. Wiley Interscience; 2000. Abstract
Vertex epidural haematomas (VEDH) are rare and difficulties are encountered in diagnosis and management. This is a case report of a patient with a vertex epidural haematoma who presented with signs of severe head injury with upper limb decerebrate posture. We discuss the challenges of radiological investigation and neurosurgical management of VEDH.
1999
O PROFNYAMBOKISAAC. "The lithospheric structure of the Kenya Rift as revealed by wide-angle seismic measurements.". In: In: Mac Caill, C. and Ryan, P.D. (eds). Continental Tectonics. Geological Society, London, Special Publications. 164, 254-269. Wiley Interscience; 1999. Abstract
Vertex epidural haematomas (VEDH) are rare and difficulties are encountered in diagnosis and management. This is a case report of a patient with a vertex epidural haematoma who presented with signs of severe head injury with upper limb decerebrate posture. We discuss the challenges of radiological investigation and neurosurgical management of VEDH.
1998
Oni EA, Ayoade JO, Owolabi IE. Advances in Geodesy and Geophysics Research in Africa.; 1998.Website
O PROFNYAMBOKISAAC. "Controlled source seismic experiments in Kenya.". In: Proc. 1997 IGCP 400 (Continental Rifts) Workshop, Dublin, Eire,pp 38-41. Wiley Interscience; 1998. Abstract
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O PROFNYAMBOKISAAC. "Current state-of-the-art, problems and preliminary results of seismic hazard assessment in sub-Saharan Africa.". In: In: Bormann, P. (Editor). Regional International Training Course Volume (1997) on Seismology and Seismic Hazard Assessment. Scientific Technical Report STR 98/05. Potsdam. 262-271. Wiley Interscience; 1998. Abstract
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O PROFNYAMBOKISAAC. "Neotectonics and stress pattern in Africa.". In: In: Bormann, P. (Editor). Regional International Training Course Volume (1997) on Seismology and Seismic Hazard Assessment. Scientific Technical Report STR 98/05. Potsdam. 177-181. Wiley Interscience; 1998. Abstract
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O PROFNYAMBOKISAAC. "Quaternary volcanic events in Africa.". In: In: Bormann, P. (Editor). Regional International Training Course Volume (1997) on Seismology and Seismic Hazard Assessment. Scientific Technical Report STR 98/05. Potsdam. 182-190. Wiley Interscience; 1998. Abstract
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1997
O PROFNYAMBOKISAAC. "The KRISP 94 lithospheric investigation of southern Kenya - the experiments and their main results.". In: In: Fuchs, K., Altherr, R., Muller, B. and Prodehl, C. (Editors). Special Issue: Structure and Dynamic Processes in the Lithosphere of the Afro-Arabian Rift System. Tectonophysics, 278: 121-147. Wiley Interscience; 1997. Abstract
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1996
Conference proceedings: geology for development within a sustainable environment.; 1996.Website
Legge PL, Barongo JO, Opiyo-Aketch N, Mathu EM, Nyambok IO. "Development in earth Science Education in East Africa.". 1996.Website
O PROFNYAMBOKISAAC. "Geology in a Sustainable Environment.". In: GSA 95 International Conference Proceedings.Editors(eds.)1998. Advances in geodesy and geophysics in Africa. ICESA 489p. Wiley Interscience; 1996. Abstract
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O PROFNYAMBOKISAAC. "Impact of earthquakes and volcanic eruptions on the environment.". In: In Wandiga S.O. and Abuodha N.L. (Editors) Environment and Development. Wiley Interscience; 1996. Abstract
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O PROFNYAMBOKISAAC. "Microprobe and X-ray diffraction analyses of the major minerals from the Jombo Hill alkaline rocks in Kenya.". In: Kenya Journal of Sciences. Series A. Vol. 10(i): 40-59. Wiley Interscience; 1996. Abstract
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O PROFNYAMBOKISAAC. "Satellite imagery study of the tectonic setting of a volcano: Menengai caldera in the Kenya Rift.". In: In Nyambok, I.O. and Ichangi D.W.(Editors). Geology for Development within a Sustainable Environment. GSA 95 International Conference Proceedings. 667-675. Wiley Interscience; 1996. Abstract
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O PROFNYAMBOKISAAC. "Seismic hazard assessment of sub-Saharan Africa: A GSHAP contribution. In Nyambok, I.O. and Ichangi D.W. (Editors) Geology for Development in a Sustainable Environment.". In: GSA 95 International Conference Proceedings. 275-286. Wiley Interscience; 1996. Abstract
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O PROFNYAMBOKISAAC. "The structure of the Kenya Rift from wide-angle seismic measurements.". In: In: Nyambok, I.O. and Ichang'i, D.W. (Editors). Geology for Development in a Sustainable Environment. GSA 95 International Conference Proceedings. 287-304. Wiley Interscience; 1996. Abstract
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1995
O PROFNYAMBOKISAAC. "Group takes a fresh look at the lithosphere underneath southern Kenya,.". In: KRSIP Working Group EOS Transactions, AGU 76, 81-82. Wiley Interscience; 1995. Abstract
(including Nyambok, I.O.), .
O PROFNYAMBOKISAAC. "Seismic images illustrate the deep roots of the Chyulu Hills volcanic area, Kenya.". In: EOS. Vol. 76, No. 28, 273-278. Wiley Interscience; 1995. Abstract
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1994
O PROFNYAMBOKISAAC. "The East African rift system in the light of KRISP 90.". In: Tectonophysics, 236, 465- 483. Wiley Interscience; 1994. Abstract
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O PROFNYAMBOKISAAC. "Rifting of the Continents:.". In: A keyproject of the International Lithospere Program. Tectonophysics, 236, 1-2. Wiley Interscience; 1994. Abstract
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1993
O PROFNYAMBOKISAAC. "Geosciences and the Environment,.". In: Nairobi University Press. 179P. Wiley Interscience; 1993. Abstract
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O PROFNYAMBOKISAAC. "Hydrogeology and hydrochemistry of the groundwater resources of the floor of the Rift Valley, Nakuru North, Kenya. In Opiyo-Aketch (Editor):.". In: Proccedings of the 5th Conference of the Geology of Kenya. Geological Society of Kenya Publication. 92-100. Wiley Interscience; 1993. Abstract
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O PROFNYAMBOKISAAC. "The late Proterozoic Yatta Shear Zone: A possible lateral ramp extending across the Kenya Rift.". In: In Opiyo-Aketch (Editor): Proceedings of the 5th Conference of the Geology of Kenya. Geological Society of Kenya Publication. 69-77. Wiley Interscience; 1993. Abstract
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O PROFNYAMBOKISAAC. "A re-evaluation of the geology and tectonics of the granitoid plutons around Kakamega town, Western Kenya.". In: In Opiyo-Aketch (Editor):Proccedings of the 5th Conference of the Geology of Kenya. Geological Society of Kenya Publication. 63-68. Wiley Interscience; 1993. Abstract
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1992
O PROFNYAMBOKISAAC. "Chyulu Hills and Yatta Plateau geology.". In: In Kenya from Space. CREDU, France. , Nairobi. East African Educational Publishers. 124-127. Wiley Interscience; 1992. Abstract
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O PROFNYAMBOKISAAC. "Geological factors affecting urban growth and spatial planning. Proceedings of First International Conference on Urban Growth and Spatial Plan of Nairobi, Kenya. 1988.". In: African Urban Quarterly. Vol. 7. 1-4. Wiley Interscience; 1992. Abstract
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O PROFNYAMBOKISAAC. "Geology of Kenya from Landsat mosaic.". In: In Kenya from Space. CREDU, France. East African Educational Publishers, 12-15, Nairobi. Wiley Interscience; 1992. Abstract
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O PROFNYAMBOKISAAC. "Lake Turkana area: Tectonics and geology.". In: In Kenya from Space. CREDU, France. East African Educational Publishers. 96-99. Nairobi. Wiley Interscience; 1992. Abstract
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O PROFNYAMBOKISAAC. "Magadi: Geology of the Kedong Valley.". In: In Kenya from Space. CREDU, France. East African Educational Publisher. 140-143, Nairobi. Wiley Interscience; 1992. Abstract
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O PROFNYAMBOKISAAC. "Mount Kenya: A Landsat structural and geomorphological interpretation.". In: In Kenya from Space. CREDU, France. East African Educational Publishers. 16-23. Nairobi. Wiley Interscience; 1992. Abstract
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O PROFNYAMBOKISAAC. "The Murang'a landslide, Kenya.". In: Environmental Geology and Water Sciences. Vol. 21. 19-21. Wiley Interscience; 1992. Abstract
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O PROFNYAMBOKISAAC. "Naivasha: Geology and natural resources.". In: In Kenya from space. East African Educational Publishers. 60-62. Nairobi. Wiley Interscience; 1992. Abstract
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O PROFNYAMBOKISAAC. "Oldoinyo Lenkiyio Range: Geology, geomorphology and hydrographic pattern of the.". In: In Kenya from Space. A contribution to a CREDU publication. East African Educational Publishers. 116-119. Nairobi. Wiley Interscience; 1992. Abstract
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O PROFNYAMBOKISAAC. "Seismology and Related Sciences in Africa.". In: Tectonophysics Special Issue, Vol. 209 Nos. 1-4, Elsevier. 337p.(editors). Wiley Interscience; 1992. Abstract
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1991
Nyambok IO, Konoti HW, Nzioki NM. "Center For Urban Research Print Series Presents.". 1991.Website
O PROFNYAMBOKISAAC. "Large-scale variation in lithospheric structure along and across the Kenya rift.". In: KRISP Working Group Nature vol. 354.223-227. Wiley Interscience; 1991. Abstract
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O PROFNYAMBOKISAAC. "New insight into structure, dynamics and composition of the lithosphere of the East African rift in Kenya from an integrated seismic experiment(Abst.).". In: KRISP 89-90.IUGG General Assembly, Vienna, Austria. Wiley Interscience; 1991. Abstract
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O PROFNYAMBOKISAAC. "Petrology, geochemistry and evaluation of the heavy mineral deposits in Malindi and Uganga shore areas.". In: Marine Mining. Vol. 10, 337-351. Wiley Interscience; 1991. Abstract
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1990
Ebinger CJ, Gupta HK, Nyambok IO. Seismology and related sciences in Africa : selected papers from the IASPEI: Regional Seismological Assembly in Africa, held in Nairobi, Kenya, August 22-29, 1990 ; and co-sponsored by Unesco and ICL.; 1990.
O PROFNYAMBOKISAAC. "Nairobi University Geology Magazine.". In: Editors), (NUGSA). 126P. Wiley Interscience; 1990. Abstract
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1989
O PROFNYAMBOKISAAC. "Abstract volume.". In: (Editor). IGCP Project 236 Conference of Gondwana Fragments. Nairobi, Kenya, 1989. UNESCO/IUGS. Wiley Interscience; 1989. Abstract
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1988
Obudho RA, Nyambok IO, Nganga JK, Ayiemba EH, Oucho JO, Muganzi Z, Khroda GO. "The Only Independent, International And Interdisciplinary Journal Of Comparative Urbanization And Planning In Africa.". 1988.The Only Independent, International And Interdisciplinary Journal Of Comparative Urbanization And Planning In Africa
Obudho RA, Nyambok IO, Nganga JK, Ayiemba EH, Oucho JO, Muganzi Z, Khroda GO. "The Only Independent, International And Interdisciplinary Journal Of Comparative Urbanization And Planning In Africa.". 1988.The Only Independent, International And Interdisciplinary Journal Of Comparative Urbanization And Planning In Africa
O PROFNYAMBOKISAAC. "Resources and capabilities for effective utilization of marine surveying technologies: Kenya's case.". In: Proceedings of United Nations Expert Group Meeting on Acquisition of Marine Surveying Technologies, Addis Ababa. (Translated also into French). 172-176. Wiley Interscience; 1988. Abstract
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1987
Nyambok IO. Geotectonomagmatic Process associated with fluorite deposition in Africa.; 1987.
Nyambok IO. Proceedings of the 1st Regional Seminar in Earth Sciences, Dakar, Senegal, 1986..; 1987.
O PROFNYAMBOKISAAC. "Proceedings of the 1st Regional Seminar in Earth Sciences,.". In: (Editor) Dakar, Senegal, 1986. ANSTI-UNESCO. 124p. Wiley Interscience; 1987. Abstract
Nyambok, I.O.
1986
Nyambok IO. Requirements in the effective training of geoscientists in Kenya.; 1986.
O PROFNYAMBOKISAAC. "Effects of clay minerals on the stabilization of black cotton and lateritic soils.". In: Kenya Journal of Science and Technology, Series A. Vol. 7. 5-23. Wiley Interscience; 1986. Abstract
Nyambok, I.O.
O PROFNYAMBOKISAAC. "Thematic geological map of the Lake Basin area. In Natural Resources Atlas for Lake Basin Development Authority (LBDA).". In: Published by the Regional Center in Surveying, Mapping and Remote Sensing. 2p. Wiley Interscience; 1986. Abstract
Nyambok, I.O.
1985
O PROFNYAMBOKISAAC. "Evolution of East African Rift system with special emphasis on the Central Rift of Kenya: A new model.". In: Kenya Journal of Science and Technology, Series Vol. 6. 83-90. Wiley Interscience; 1985. Abstract
Nyambok, I.O.
O PROFNYAMBOKISAAC. "Geological manpower training in Kenya.". In: Proceedings of lst Annual Conference on the Geology of Kenya. 1984. Wiley Interscience; 1985. Abstract
Nyambok, I.O.
1984
O PROFNYAMBOKISAAC, OPIYO PROFAKECHNOBERT. "Precambrian Geology of the Ishiara area, Kenya.". In: Journal of African Earth Sciences. Vol.2 No.1 pp34-38. Wiley Interscience; 1984. Abstract
Nyambok, I.O.
1983
O PROFNYAMBOKISAAC. "Geological structure of the Rift Valley in Kenya.". In: Proceedings of the Regional Seminar on Geothermal Energy in Eastern and Southern Africa, Nairobi, Kenya (1982). 57-60. Wiley Interscience; 1983. Abstract
Nyambok, I.O.
1982
O PROFNYAMBOKISAAC. "Geological excursion guide to the Kenya Rift Valley (Nairobi-Kijabe- Naivasha-Gilgil).". In: 6th Conference of African Geology, Nairobi. 15p. Wiley Interscience; 1982. Abstract
Nyambok, I.O.
1980
O PROFNYAMBOKISAAC. "The M.". In: Kenya Journal of Science & Technology, Series A, 2nd Issue. 117-124. Wiley Interscience; 1980. Abstract
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1979
Nyambok IO. "Origin and the Distribution of the Elements.". 1979.Origin and the Distribution of the Elements
O PROFNYAMBOKISAAC. "Geochemistry of the carbonatite complexes in East Africa in L.H. Arhens, Origin and Distribution of Elements.". In: Pergamon Press, Oxford. 533-539. Wiley Interscience; 1979. Abstract
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O PROFNYAMBOKISAAC. "Geology, hydrology and sedimentation: in Odingo, R.S.(Editor) An African Dam.". In: Ecological Bull. No. 29. 17-37. Wiley Interscience; 1979. Abstract
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O PROFNYAMBOKISAAC. "Mineral resources of the Lake Victoria Basin - Proceedings of I.D.S.". In: Workshop on Lake Victoria Basin Development. Occasional Paper 34. 159-174. Wiley Interscience; 1979. Abstract
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1978
O PROFNYAMBOKISAAC. "Distribution of trace elements and their petrogenetic significance in the Jombo Hill alkaline rocks, Kenya.". In: UUDMP Research Report No. 10. 14p. Wiley Interscience; 1978. Abstract
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O PROFNYAMBOKISAAC. "Iron distribution in aegirine-augite clinopyroxenes, studies by the M.". In: UUDMP Research Report No. ll. 10p. Wiley Interscience; 1978. Abstract
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O PROFNYAMBOKISAAC. "Microprobe and X-ray diffraction analyses of the major minerals from Jombo Hill alkaline rocks, Kenya.". In: UUDMP Research Report No. l0.20p. Wiley Interscience; 1978. Abstract
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O PROFNYAMBOKISAAC. "Mineralogy and paragenesis of the fluorite deposits in Kerio Valley, Kenya,.". In: GFF, Vol. l00. 221-223. Wiley Interscience; 1978. Abstract
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O PROFNYAMBOKISAAC. "Petrology, Mineralogy and Geochemistry of the Alkaline Rocks, Jombo Hill Kenya.". In: Acta Universities Upsaliensis Diss. Abstr.493. 14p. Wiley Interscience; 1978. Abstract
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O PROFNYAMBOKISAAC. "Trace elements in fluorites from Kerio Valley, Kenya.". In: Neues Jb. Miner. Mh. H.7. 298-307. Wiley Interscience; 1978. Abstract
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1977
A bibliography on Kenya: Geosciences.; 1977.Website
O PROFNYAMBOKISAAC. "Bibliography of Kenya:Geosciences.". In: The Scandinavian Institute of African Studies, Uppsala. 29p. Wiley Interscience; 1977. Abstract
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O PROFNYAMBOKISAAC. "Geochemistry of the carbonatite complexes in East Africa in (Abstr.).". In: 2nd Symposium on the origin and distribution of elements. IAGC and UNESCO.102. Wiley Interscience; 1977. Abstract
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1975
O PROFNYAMBOKISAAC. "Geology of the fluorite deposits in Kerio Valley, Kenya.". In: Econ. Geol. Vol 70. Wiley Interscience; 1975. Abstract
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1974
O PROFNYAMBOKISAAC. "Some historical and philosophical aspects of Geology.". In: Thought and Practice, Vol. l (2). Wiley Interscience; 1974. Abstract
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1973
O PROFNYAMBOKISAAC. "Mineralogy and paragenesis of the fluorite deposits in Musgut-Kimwarer area, Keri Valley, Kenya.". In: M.Sc. thesis. Wiley Interscience; 1973. Abstract
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