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A hiatus of 8 My duration in the Middle Jurassic with ammonite succession in Tethyan Himalaya (South Tibet)

Yin, JR; Callomon, JH; Enay, R; (2000) A hiatus of 8 My duration in the Middle Jurassic with ammonite succession in Tethyan Himalaya (South Tibet). Geobios , 33 (2) 201 - 210.

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Abstract

Middle Jurassic ammonites collected in situ from the Lanongla sections, Lanongla, South Tibet allow the precise dating of the ferruginous Oolite beds and the underlying limestone beds in this area. A large hiatus of 8 million-year duration in South Tibet is well documented by the ammonite succession. Revision of sea-level changes curve in Tibet during the Middle Jurassic is proposed; the high sea-level stands below and above the disconformity are dated as Humphriesianum Zone (late Early Bajocian) and Orbis Zone (early Late Bathonian), respectively

Type:Article
Title:A hiatus of 8 My duration in the Middle Jurassic with ammonite succession in Tethyan Himalaya (South Tibet)
Additional information:Journal Article 329AR Yin JR China Univ Geosci, 29 Xueyuan Lu, Beijing 100083, Peoples R China GEOBIOS-LYON
Keywords:As, beds, CENTRAL NEPAL, China, discontinuity ammonites, DURATION, fauna, ferruginous oolite, formation, Jurassic, Middle Jurassic, PEOPLE, sea level, sea-level change, SEA-LEVEL CHANGES, SITU, SOUTH, SPITI SHALES, Tibetan tethys
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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