Volcanic Rocks in the Samburu Hills, Northern Kenya

KOYAGUCHI, Takehiro

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https://doi.org/10.14989/68310

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DCフィールド	値	言語
dc.contributor.author	KOYAGUCHI, Takehiro	en
dc.date.accessioned	2008-11-25T02:46:17Z	-
dc.date.available	2008-11-25T02:46:17Z	-
dc.date.issued	1984-03	-
dc.identifier.issn	0286-9667	-
dc.identifier.uri	http://hdl.handle.net/2433/68310	-
dc.description.abstract	Volcanic rocks of the Samburu Hills are composed mainly of basaltic lava flows (ankaramite, olivine basalt and hawaiite) intercalated with differentiated rock lava flows and welded tufffs (trachyte and alkali rhyolite). Basaltic rocks of various ages, from Miocene to Recent, were collected from an area of 10 x 10 km2 (Suguta Area) and their petrography and petrochemistry are described. A decrease in degree of silica-undersaturation with time from alkali basalts to transitional basalts can be recognized. Successive decrease in depth of segregation of primary magmas can explain the temporal variation in chemical composition.	en
dc.format.mimetype	application/pdf	-
dc.language.iso	eng	-
dc.publisher	The Research Committee for African Area Studies, Kyoto University	en
dc.subject.ndc	240	-
dc.title	Volcanic Rocks in the Samburu Hills, Northern Kenya	en
dc.type	journal article	-
dc.type.niitype	Journal Article	-
dc.identifier.ncid	AA10636379	-
dc.identifier.jtitle	African Study Monographs. Supplementary Issue.	en
dc.identifier.volume	2	-
dc.identifier.spage	147	-
dc.identifier.epage	179	-
dc.textversion	publisher	-
dc.sortkey	10	-
dc.address	Faculty of Science, University of Tokyo	en
dc.identifier.selfDOI	10.14989/68310	-
dcterms.accessRights	open access	-
dc.identifier.pissn	0286-9667	-
出現コレクション:	2 (Study of the Tertiary Hominoids and Their Palaeoenvironments in East Africa: 2)

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