* To whom correspondence may be addressed
planktonic foraminifera was analysed from sixteen wells from the Lower Magdalena Valley (LMV). The inconsistencies found in the biostratigraphic record, i.e. varying successions of first and last appearances of species from well to well as a result of several factors such incomplete sampling and pre...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.541.4217 2023-05-15T18:00:56+02:00 * To whom correspondence may be addressed Carlos Cuartas Carlos Jaramillo José-ignacio Martínez Biostratigraphy Team Ecopetrol S. A Petróleo A. A Bucaramanga Santander Colombia The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.541.4217 http://www.ecopetrol.com.co/documentos/39396_01_cuartas_jaramillo_baja.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.541.4217 http://www.ecopetrol.com.co/documentos/39396_01_cuartas_jaramillo_baja.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.ecopetrol.com.co/documentos/39396_01_cuartas_jaramillo_baja.pdf text 2006 ftciteseerx 2016-01-08T11:05:05Z planktonic foraminifera was analysed from sixteen wells from the Lower Magdalena Valley (LMV). The inconsistencies found in the biostratigraphic record, i.e. varying successions of first and last appearances of species from well to well as a result of several factors such incomplete sampling and preservation, true variation in the distribution of fosil taxa, etc., and the great amount of biostratigraphic data makes it practically impos-sible to accurately constrain basin history from biostratigraphic information by unaided visual inspection. This motivates the treatment of biostratigraphic information with new quantitative approaches, such as constrained optimization (CONOP9 software) and graphic correlation concepts (GraphCor 3,0) and the comparative method approach of Cooper et al. (2001). The succession of biostratigraphic events found through the application of each technique was statistically filtered and compared with Kendall tau coefficients whose values were 0,8. An optimal biostratigraphic succession of LOs was found and calibrated with the Berggren et al. (1995) global time scale by a LOESS regression model for the middle Eocene-Pliocene interval, thus revealing three major changes in sediment accumulation rates for the basin during this time interval: (1) middle Eocene to Oligocene, with low accumulation rates, (2) early Miocene to middle Miocene, with high accumulation rates and (3) late Miocene to Pliocene, with lower accumulation rates. The calibrated composite succession enabled the construction of age-well depth plots, which indicate periods Text Planktonic foraminifera Unknown Kendall ENVELOPE(-59.828,-59.828,-63.497,-63.497) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
planktonic foraminifera was analysed from sixteen wells from the Lower Magdalena Valley (LMV). The inconsistencies found in the biostratigraphic record, i.e. varying successions of first and last appearances of species from well to well as a result of several factors such incomplete sampling and preservation, true variation in the distribution of fosil taxa, etc., and the great amount of biostratigraphic data makes it practically impos-sible to accurately constrain basin history from biostratigraphic information by unaided visual inspection. This motivates the treatment of biostratigraphic information with new quantitative approaches, such as constrained optimization (CONOP9 software) and graphic correlation concepts (GraphCor 3,0) and the comparative method approach of Cooper et al. (2001). The succession of biostratigraphic events found through the application of each technique was statistically filtered and compared with Kendall tau coefficients whose values were 0,8. An optimal biostratigraphic succession of LOs was found and calibrated with the Berggren et al. (1995) global time scale by a LOESS regression model for the middle Eocene-Pliocene interval, thus revealing three major changes in sediment accumulation rates for the basin during this time interval: (1) middle Eocene to Oligocene, with low accumulation rates, (2) early Miocene to middle Miocene, with high accumulation rates and (3) late Miocene to Pliocene, with lower accumulation rates. The calibrated composite succession enabled the construction of age-well depth plots, which indicate periods |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Carlos Cuartas Carlos Jaramillo José-ignacio Martínez Biostratigraphy Team Ecopetrol S. A Petróleo A. A Bucaramanga Santander Colombia |
spellingShingle |
Carlos Cuartas Carlos Jaramillo José-ignacio Martínez Biostratigraphy Team Ecopetrol S. A Petróleo A. A Bucaramanga Santander Colombia * To whom correspondence may be addressed |
author_facet |
Carlos Cuartas Carlos Jaramillo José-ignacio Martínez Biostratigraphy Team Ecopetrol S. A Petróleo A. A Bucaramanga Santander Colombia |
author_sort |
Carlos Cuartas |
title |
* To whom correspondence may be addressed |
title_short |
* To whom correspondence may be addressed |
title_full |
* To whom correspondence may be addressed |
title_fullStr |
* To whom correspondence may be addressed |
title_full_unstemmed |
* To whom correspondence may be addressed |
title_sort |
* to whom correspondence may be addressed |
publishDate |
2006 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.541.4217 http://www.ecopetrol.com.co/documentos/39396_01_cuartas_jaramillo_baja.pdf |
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ENVELOPE(-59.828,-59.828,-63.497,-63.497) |
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Kendall |
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Planktonic foraminifera |
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Planktonic foraminifera |
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http://www.ecopetrol.com.co/documentos/39396_01_cuartas_jaramillo_baja.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.541.4217 http://www.ecopetrol.com.co/documentos/39396_01_cuartas_jaramillo_baja.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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