کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11016227 | 1777995 | 2018 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectroscopic studies on Permian plant fossils in the Pedra de Fogo Formation from the ParnaÃba Basin, Brazil
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
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چکیده انگلیسی
The Pedra de Fogo Formation dated from the early Permian (approximately 280â¯Mya), belongs to the sedimentary ParnaÃba Basin, located in the northeastern region of Brazil. It is recognized by their well preserved plant fossil contents and it is notable for having several fossilized trunks in the life position. This study presents physical and/or chemical properties of the fossilized plants through vibrational spectroscopies, SEM/EDS spectroscopy and X-ray diffraction techniques. Specimens from different localities were selected for the purpose of identifying and characterizing compounds related to the fossilized materials. These different techniques allowed obtaining information from the molecular spectra in organic and inorganic substances, which are present in these stated fossils and in the atomic elements, as well as the crystalline phases. Based on the results duly obtained, we were able to identify the presence of silica and confirm that the dominant process of the fossilized specimens investigated has occurred through quartz silicification with the contribution of persistence from amorphous carbon.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of King Saud University - Science - Volume 30, Issue 4, October 2018, Pages 483-488
Journal: Journal of King Saud University - Science - Volume 30, Issue 4, October 2018, Pages 483-488
نویسندگان
D.M. da Conceição, J.H. da Silva, J.C. Cisneros, R. Iannuzzi, B.C. Viana, G.D. Saraiva, J.P. Sousa, P.T.C. Freire,