A river originating in the Parima Mountains in southwestern Venezuela, flowing northwest to the border with Colombia, then turning east, passing through the savannah region known as the Llano, before emptying into the Atlantic Ocean. It forms a large delta at its mouth. Its total length is 2,500 km. It is navigable for about 1,100 km by large ship and 1,670 km by small boat. In 1880, A. Humboldt discovered that the Casiquiare River, a tributary of the Amazon, connects to the Negro River, a tributary of the Amazon. The basin is undergoing transformation due to the construction of dams and the development of oil resources. → Related topics Angel Falls | Guiana Highlands | Colombia | Ciudad Guayana | Trinidad and Tobago | Betancourt | Venezuela | Roraima [Mountain] Source : Heibonsha Encyclopedia About MyPedia Information |
南米,ベネズエラ南西部のパリマ山脈中に発し,北西流してコロンビアとの国境を流れ,東に転じ,リャノと呼ばれるサバンナ地帯を貫流,大西洋に注ぐ川。河口に大三角州を形成。全長2500km。大型船で約1100km,小型船で1670km可航。1880年,A.フンボルトが支流カシキアレ川がアマゾン川の支流ネグロ川に通じることを発見した。ダム建設,石油資源開発によって流域は変貌しつつある。 →関連項目アンヘル滝|ギアナ高地|コロンビア|シウダード・グアヤナ|トリニダード・トバゴ|ベタンクール|ベネズエラ|ロライマ[山] 出典 株式会社平凡社百科事典マイペディアについて 情報 |
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