Methodologies for recovering calcareous nannofossils from bituminous claystone
The usual methods applied to recover calcareous nannofossils from claystones are extremely simple, cost-effective and fast. Some samples, however, exhibit heterogeneous mixtures of biogenic materials, detrital particles and other aggregates that visually mask the coccoliths under the microscope. For...
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2015
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00262803_v61_n3_p165_Bom http://hdl.handle.net/20.500.12110/paper_00262803_v61_n3_p165_Bom |
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paper:paper_00262803_v61_n3_p165_Bom2023-06-08T14:53:51Z Methodologies for recovering calcareous nannofossils from bituminous claystone claystone coccolith fossil assemblage fossil record micropaleontology nanofossil Argentina Neuquen Basin Haptophyceae The usual methods applied to recover calcareous nannofossils from claystones are extremely simple, cost-effective and fast. Some samples, however, exhibit heterogeneous mixtures of biogenic materials, detrital particles and other aggregates that visually mask the coccoliths under the microscope. For instance, a high content of organic matter in association with calcareous nannofossil specimens was observed in outcrop samples of the Vaca Muerta Formation (Neuquén Basin, Argentina). To solve this problem, traditional preparation techniques are herein improved to aid better visualization of calcareous nannofossils. Sixteen tests were qualitatively and quantitatively evaluated, testing the efficiency of some chemicals and physicals methods such as the addition of a solvent (oxidizing agent) in the smear slide technique, as well as the use of ultrasound in the random decantation technique. © 2015, Micropaleontology Press. All rights reserved. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00262803_v61_n3_p165_Bom http://hdl.handle.net/20.500.12110/paper_00262803_v61_n3_p165_Bom |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
claystone coccolith fossil assemblage fossil record micropaleontology nanofossil Argentina Neuquen Basin Haptophyceae |
| spellingShingle |
claystone coccolith fossil assemblage fossil record micropaleontology nanofossil Argentina Neuquen Basin Haptophyceae Methodologies for recovering calcareous nannofossils from bituminous claystone |
| topic_facet |
claystone coccolith fossil assemblage fossil record micropaleontology nanofossil Argentina Neuquen Basin Haptophyceae |
| description |
The usual methods applied to recover calcareous nannofossils from claystones are extremely simple, cost-effective and fast. Some samples, however, exhibit heterogeneous mixtures of biogenic materials, detrital particles and other aggregates that visually mask the coccoliths under the microscope. For instance, a high content of organic matter in association with calcareous nannofossil specimens was observed in outcrop samples of the Vaca Muerta Formation (Neuquén Basin, Argentina). To solve this problem, traditional preparation techniques are herein improved to aid better visualization of calcareous nannofossils. Sixteen tests were qualitatively and quantitatively evaluated, testing the efficiency of some chemicals and physicals methods such as the addition of a solvent (oxidizing agent) in the smear slide technique, as well as the use of ultrasound in the random decantation technique. © 2015, Micropaleontology Press. All rights reserved. |
| title |
Methodologies for recovering calcareous nannofossils from bituminous claystone |
| title_short |
Methodologies for recovering calcareous nannofossils from bituminous claystone |
| title_full |
Methodologies for recovering calcareous nannofossils from bituminous claystone |
| title_fullStr |
Methodologies for recovering calcareous nannofossils from bituminous claystone |
| title_full_unstemmed |
Methodologies for recovering calcareous nannofossils from bituminous claystone |
| title_sort |
methodologies for recovering calcareous nannofossils from bituminous claystone |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00262803_v61_n3_p165_Bom http://hdl.handle.net/20.500.12110/paper_00262803_v61_n3_p165_Bom |
| _version_ |
1768544354542026752 |