Estudo de coprólito da bacia sedimentar do Araripe por meios de espectroscopia FT-IR e difração de Raios-X


Autoria(s): Lima, Ricardo Jorge Cruz; Freire, Paulo de Tarso Cavalcante; Sasaki, José Marcos; Saraiva, Antonio Álamo Feitosa; Lanfredi, Silvania; Nobre, Marcos Augusto de Lima
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/01/2007

Resumo

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.

Formato

1956-1958

Identificador

http://dx.doi.org/10.1590/S0100-40422007000800029

Química Nova. Sociedade Brasileira de Química, v. 30, n. 8, p. 1956-1958, 2007.

0100-4042

http://hdl.handle.net/11449/6951

10.1590/S0100-40422007000800029

S0100-40422007000800029

S0100-40422007000800029.pdf

Idioma(s)

por

Publicador

Sociedade Brasileira de Química

Relação

Química Nova

Direitos

openAccess

Palavras-Chave #coprolites #X-ray diffraction #Fourier transform infrared spectroscopy
Tipo

info:eu-repo/semantics/article