Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significance

Sabkha and deep burial set tings are the most com mon sites where diagenetic anhydrite forms. In a sabkha setting, displacive facies (iso lated nodules, bed ded nodules, enterolithic levels) of early diagenetic or primary anhydrite are generated (Shearman, 1966; Hardie, 1967). These anhydrite facies...

ver descrição completa

Detalhes bibliográficos
Autores: Ortí Cabo, Federico, Rosell, Laura (Rosell i Ortiz), Playà i Pous, Elisabet, García-Veigas, Francisco Javier
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/52946
Acesso em linha:https://hdl.handle.net/2445/52946
Access Level:acceso abierto
Palavra-chave:Evaporites
Sedimentació
Sedimentation and deposition
id ES_59192ea0a95ede96f1b849c71fe7ffc8
oai_identifier_str oai:diposit.ub.edu:2445/52946
network_acronym_str ES
network_name_str España
repository_id_str
spelling Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significanceOrtí Cabo, FedericoRosell, Laura (Rosell i Ortiz)Playà i Pous, ElisabetGarcía-Veigas, Francisco JavierEvaporitesSedimentacióEvaporitesSedimentation and depositionSabkha and deep burial set tings are the most com mon sites where diagenetic anhydrite forms. In a sabkha setting, displacive facies (iso lated nodules, bed ded nodules, enterolithic levels) of early diagenetic or primary anhydrite are generated (Shearman, 1966; Hardie, 1967). These anhydrite facies are commonly foundat the top of shoal ing cycles representing the evolution from subaqueous depositional conditions at the base (carbonates, lutites) to exposure conditions at the top where in ter stitially-grown gypsum/anhydrite de velops ( sabkha cy cles). In a deep burial setting, gypsum transforms to tally to anhydrite with in creas ing temperature and lithostatic pressure (Murray, 1964). Al though this mineral transformation usually preserves the depositional gypsum facies, a significant textural change is in volved in other cases, resulting in replacive anhydrite with a nodular-mosaic or"chicken-wire" fabric (Warren, 2006). In the two settings, how ever, the size of the individual anhydrite nodules is relatively small, rarely reaching some tens of centimetres across. More over, bedding is preserved or little disturbed, al though minor de formation is caused by the displacive sabkha nodules.Polish Geological Institute-National Research Institute2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/52946Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a:Geological Quarterly, 2010, vol. 54, num. 4, p. 411-422(c) Polish Geological Institute-National Research Institute, 2010info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/529462026-05-27T06:46:51Z
dc.title.none.fl_str_mv Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significance
title Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significance
spellingShingle Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significance
Ortí Cabo, Federico
Evaporites
Sedimentació
Evaporites
Sedimentation and deposition
title_short Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significance
title_full Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significance
title_fullStr Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significance
title_full_unstemmed Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significance
title_sort Large gypsum nodules in the Paleogene and Neogene evaporites of Spain: distribution and palaeogeographic significance
dc.creator.none.fl_str_mv Ortí Cabo, Federico
Rosell, Laura (Rosell i Ortiz)
Playà i Pous, Elisabet
García-Veigas, Francisco Javier
author Ortí Cabo, Federico
author_facet Ortí Cabo, Federico
Rosell, Laura (Rosell i Ortiz)
Playà i Pous, Elisabet
García-Veigas, Francisco Javier
author_role author
author2 Rosell, Laura (Rosell i Ortiz)
Playà i Pous, Elisabet
García-Veigas, Francisco Javier
author2_role author
author
author
dc.subject.none.fl_str_mv Evaporites
Sedimentació
Evaporites
Sedimentation and deposition
topic Evaporites
Sedimentació
Evaporites
Sedimentation and deposition
description Sabkha and deep burial set tings are the most com mon sites where diagenetic anhydrite forms. In a sabkha setting, displacive facies (iso lated nodules, bed ded nodules, enterolithic levels) of early diagenetic or primary anhydrite are generated (Shearman, 1966; Hardie, 1967). These anhydrite facies are commonly foundat the top of shoal ing cycles representing the evolution from subaqueous depositional conditions at the base (carbonates, lutites) to exposure conditions at the top where in ter stitially-grown gypsum/anhydrite de velops ( sabkha cy cles). In a deep burial setting, gypsum transforms to tally to anhydrite with in creas ing temperature and lithostatic pressure (Murray, 1964). Al though this mineral transformation usually preserves the depositional gypsum facies, a significant textural change is in volved in other cases, resulting in replacive anhydrite with a nodular-mosaic or"chicken-wire" fabric (Warren, 2006). In the two settings, how ever, the size of the individual anhydrite nodules is relatively small, rarely reaching some tens of centimetres across. More over, bedding is preserved or little disturbed, al though minor de formation is caused by the displacive sabkha nodules.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/52946
url https://hdl.handle.net/2445/52946
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a:
Geological Quarterly, 2010, vol. 54, num. 4, p. 411-422
dc.rights.none.fl_str_mv (c) Polish Geological Institute-National Research Institute, 2010
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Polish Geological Institute-National Research Institute, 2010
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Polish Geological Institute-National Research Institute
publisher.none.fl_str_mv Polish Geological Institute-National Research Institute
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869408590338457600
score 15,301603

Registos relacionados