Hauterivian-Barremian Bivalves from the Boulouha Formation of the Dahar Escarpment, Southern Tunisia: Stratigraphy and Regional Correlation

• 作者: Ben Ali Walid Boukhalfa Kamel Gang Li Jingeng Sha Ouaja Mohamed Soussi Mohamed
• 来源期刊: 地质学期刊(英文)
• 学科: 地球科学
• 关键词: Bivalves Hauterivian-Barremian Boulouha Fm. Dahar ESCARPMENT Tunisia
• 年，卷（期）: 2019,（10）
• 页码范围: 569-572
• 页数: 4页
• 分类号: P5

摘要

The Lower Cretaceous mixed siliciclastic-carbonate successions of the Boulouha Formation at the type locality in the Dahar escarpment of southern Tunisia have yielded a new discovered assemblage of bivalves which contains Anomia laevigata (Sowerby);Modiolus sp. cf. M. dahuashuensis (Yu et Li);Astarte sp.;and ?Mytilus sp.. The temporal distribution of the Anomia laevigata (Sowerby) and Modiolus sp. cf. M. dahuashuensis (Yu et Li) is limited to the Aptian formations of northeastern China, Japan and Korea, thus we suggest a Hauterivian-Barremian age for the Boulouha Formation. Henceforth, the new biostratigraphic data are used to improve a regional chronostratigraphic correlation between the lower Cretaceous strata of the Saharan Platform domain and those coeval from the Chotts domain.