Autor(es): Lima, Ricardo Jorge Cruz ; Freire, Paulo de Tarso Cavalcante ; Sasaki, José Marcos ; Saraiva, Antonio Álamo Feitosa ; Lanfredi, Silvania [UNESP] ; Nobre, Marcos Augusto de Lima [UNESP]
Data: 2014
Identificador Persistente: http://hdl.handle.net/11449/6951
Origem: Oasisbr
Assunto(s): coprolites; X-ray diffraction; Fourier transform infrared spectroscopy
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coprolites are fossilized faeces that constitute an important source of palaeobiological informations. This paper describes the characterization of some coprolite materials originated from the Romualdo Member of the Santana Formation (Araripe Basin, south of Ceará State in Brazil) by means of two techniques: X-ray powder diffraction and Fourier transform infrared spectroscopy (FT-IR). This characterization allowed us to determine the main composition of the coprolites, of the nodulus (where the coprolites were extracted) and of the sediment (where the nodulus was found) suggesting that the material was produced by a carnivorous fish of the Lower Cretaceous.
Universidade Federal do Maranhão Centro de Ciências Sociais, Saúde e Tecnologia
Universidade Federal do Ceará (UFC) Departamento de Física
Universidade Regional do Cariri Departamento de Ciências Físicas e Biológicas
Universidade Estadual Paulista Faculdade de Ciências e Tecnologia Departamento de Física, Química e Biologia
Universidade Estadual Paulista Faculdade de Ciências e Tecnologia Departamento de Física, Química e Biologia
