Paleoenvironmental Approach on the Lower CretaceousSequences of Areia do Mastro (Cabo Espichel, SouthernPortugal)  

作　　者：Silvério Domingues Figueiredo Pierluigi Rosina Ioanna Bachtsevanidou Strantzali Vanessa Antunes Sandro Figueiredo 

机构地区：[1]Departmental Unit of Archaeology,Conservation and Restore and Heritage,Polytechnic Institute of Tomar,Quinta do Contador.Estrada da Serra,Gab.L214.2300313 Tomar,Portugal [2]Department of Palaeontology,Portuguese Centre of Geo-History and Prehistory,Sao Caetano-Golega 2150-265,Portugal [3]Geosciences Center,University of Coimbra,Coimbra,Coimbra 3030-790,Portugal

出　　处：《Journal of Environmental Science and Engineering(A)》2020年第2期66-71,共6页环境科学与工程（A）

基　　金：Authors thank Centro Português de Geo-História e Pré-História,for supporting the field and laboratory work,and all the team members who have collaborated in the fieldwork.

摘　　要：This palaeontological study focuses on the sedimentology and palaeofauna of Areia do Mastro locale in Cabo Espichel (Sesimbra, south of Lisbon). Two main geological formations are identified in Areia do Mastro: the Areia do Mastro Formation and the Papo-Seco Formation. We report herein the fossilized vertebrate and invertebrate remains from the basal deposits (marls, sands and gravels) of Papo-Seco Formation assigned to Lower Barremian (Lower Cretaceous). The sedimentological analysis and identified palaeofauna indicated a changing environment with important biological and ecological aspects. Extensive periods of sea level fluctuations and subsequent transgressive marine episodes had as a result the continental infralittoral internal platform to be gradually replaced by a lagoon, as revealed from the fossil remains embodied in the sediments during the formation of the afore mentioned sedimentary sequences.

关 键 词：PALEO-ENVIRONMENT dinosaurs BARREMIAN invertebrates vertebrates 

分 类 号：P61[天文地球—矿床学]