Yuruma Formation (Barremian - lower Aptian?) In the Yuruma hill and Punta Espada, Alta Guajira, Uribia, Colombia

The Yuruma Formation in the Yuruma hill area its type locality can be differentiated into two stratigraphic intervals. The lower and upper intervals of the Yuruma Formation can also be subdivided into two segments.  The lithological, sedimentological and fossiliferous characteristics support this d...

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Main Author: Pedro Patarroyo
Format: Article
Language:English
Published: Servicio Geológico Colombiano 2021-11-01
Series:Boletín Geológico
Subjects:
Online Access:https://revistas.sgc.gov.co/index.php/boletingeo/article/view/584
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author Pedro Patarroyo
author_facet Pedro Patarroyo
author_sort Pedro Patarroyo
collection DOAJ
description The Yuruma Formation in the Yuruma hill area its type locality can be differentiated into two stratigraphic intervals. The lower and upper intervals of the Yuruma Formation can also be subdivided into two segments.  The lithological, sedimentological and fossiliferous characteristics support this differentiation, which allows to  interpret the accumulation energy influences over the sea floor. The lower interval is characterized by  intercalations of very fossiliferous marlstones and biomicrites with benthonic and nektonic fossils from the  lower Barremian. The upper interval is represented by marlstones and biomicrites with poor benthonic and  nektonic fossils from the upper Barremian and probably from the lower Aptian. In the Punta Espada area,  whit scarce lithological controls over the lower and upper parts of the Yuruma Formation, were found  biomicrites with benthonic and nektonic fossils of the lower Barremian to the lower part, and to the top were  recognized biomicrites that underlie beds with lower Aptian ammonites.
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spelling doaj.art-034e1f5002524b399dd7684e495461fc2023-01-12T19:31:55ZengServicio Geológico ColombianoBoletín Geológico0120-14252711-13182021-11-0148210.32685/0120-1425/bol.geol.48.2.2021.584361Yuruma Formation (Barremian - lower Aptian?) In the Yuruma hill and Punta Espada, Alta Guajira, Uribia, ColombiaPedro Patarroyo0Departamento de Geociencias, Universidad Nacional de Colombia, Bogotá, Colombia The Yuruma Formation in the Yuruma hill area its type locality can be differentiated into two stratigraphic intervals. The lower and upper intervals of the Yuruma Formation can also be subdivided into two segments.  The lithological, sedimentological and fossiliferous characteristics support this differentiation, which allows to  interpret the accumulation energy influences over the sea floor. The lower interval is characterized by  intercalations of very fossiliferous marlstones and biomicrites with benthonic and nektonic fossils from the  lower Barremian. The upper interval is represented by marlstones and biomicrites with poor benthonic and  nektonic fossils from the upper Barremian and probably from the lower Aptian. In the Punta Espada area,  whit scarce lithological controls over the lower and upper parts of the Yuruma Formation, were found  biomicrites with benthonic and nektonic fossils of the lower Barremian to the lower part, and to the top were  recognized biomicrites that underlie beds with lower Aptian ammonites. https://revistas.sgc.gov.co/index.php/boletingeo/article/view/584Yuruma Formationlower cretaceoustype localityLa GuajiraColombia
spellingShingle Pedro Patarroyo
Yuruma Formation (Barremian - lower Aptian?) In the Yuruma hill and Punta Espada, Alta Guajira, Uribia, Colombia
Boletín Geológico
Yuruma Formation
lower cretaceous
type locality
La Guajira
Colombia
title Yuruma Formation (Barremian - lower Aptian?) In the Yuruma hill and Punta Espada, Alta Guajira, Uribia, Colombia
title_full Yuruma Formation (Barremian - lower Aptian?) In the Yuruma hill and Punta Espada, Alta Guajira, Uribia, Colombia
title_fullStr Yuruma Formation (Barremian - lower Aptian?) In the Yuruma hill and Punta Espada, Alta Guajira, Uribia, Colombia
title_full_unstemmed Yuruma Formation (Barremian - lower Aptian?) In the Yuruma hill and Punta Espada, Alta Guajira, Uribia, Colombia
title_short Yuruma Formation (Barremian - lower Aptian?) In the Yuruma hill and Punta Espada, Alta Guajira, Uribia, Colombia
title_sort yuruma formation barremian lower aptian in the yuruma hill and punta espada alta guajira uribia colombia
topic Yuruma Formation
lower cretaceous
type locality
La Guajira
Colombia
url https://revistas.sgc.gov.co/index.php/boletingeo/article/view/584
work_keys_str_mv AT pedropatarroyo yurumaformationbarremianloweraptianintheyurumahillandpuntaespadaaltaguajirauribiacolombia