Sierra Leone 1:50,000 (approx.).
- 出版日期：1962-
- 出版者：Published by the Directorate of Overseas Survey for the Gov't. of Sierra Leone,
- 页数：maps ;
- 出版地：[Tolworth, Surrey] :
- 第一责任说明：drawn and photographed by Directorate of Overseas Surveys 1962.
- 尺寸：56 x 56 cm., on sheets 84 x 64 cm.
- 分类号：a*A/6398
MARC全文
42h0041412 20140829103533.0 aj aanzn 990913s1962 enkg b f 0 eng d a 50000 W0140000 W0100000 N0100000 N0060000 UPM UPM OCLCQ ; OCLCG ; 010001 f-sl--- G8862.G3C5 1962 .G7 a*A/6398 Great Britain. Directorate of Overseas Surveys. Sierra Leone 1:50,000 (approx.). Geology of Gbangbama area / drawn and photographed by Directorate of Overseas Surveys 1962. Geology of Gbangbama area ; Sierra Leone, geology of Gbangbama area Prov. ed. pending the publication of fully coloured sheets on rev. base. Scale 1:50,000 (W14°--W10°/N10°--N6°). [Tolworth, Surrey] : Published by the Directorate of Overseas Survey for the Gov't. of Sierra Leone, 1962- maps ; 56 x 56 cm., on sheets 84 x 64 cm. D.O.S. (Geol.) ; 1139 Relief shown by spot heights. ; Geographic coverage complete in 118 sheets. ; "Geologically surveyed by David H. Mackenzie 1957 and 1959-1960. Topography compiled by Geological Survey Department, Sierra Leone, from air photography by Aircraft Operating Co. (Aerial Surveys) Ltd., Contract 23, 1956." ; "The geology of sheets 87, 98 and 99 is described in Bulletin No. 3." ; Includes adjoining sheets index map and notes. ; "WOPD/180/OA." Geology ; Geology Sierra Leone ; Sierra Leone ; Gbangbama Region Maps. ; Maps. Sierra Leone Geology Maps. aMackenzie, D. H. ; q(David H.) Sierra Leone Geological Survey. D.O.S.--Geol ; 1139. 010001 M000010790 lxl1303 h1 ; rCNY2337.00