Document
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Boletin de la Sociedad Geologica Mexicana
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type: Journal
type: Continuant
type: Information Content Entity
type: Generically Dependent Continuant
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publication venue for: Mid-late Cenomanian larger benthic foraminifers from the El Abra Formation W Valles-San Luis Potosi Platform, central-eastern Mexico: Taxonomy, biostratigraphy and paleoenvironmental implications
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individual
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date: 2026-08-27T06:20:33
publisher: vivo
type: Document
label: RDF description of Mid-late Cenomanian larger benthic foraminifers from the El Abra Formation W Valles-San Luis Potosi Platform, central-eastern Mexico: Taxonomy, biostratigraphy and paleoenvironmental implications - http://orbis.uaslp.mx/vivo/individual/scopus5865

Article
type: Class

Mid-late Cenomanian larger benthic foraminifers from the El Abra Formation W Valles-San Luis Potosi Platform, central-eastern Mexico: Taxonomy, biostratigraphy and paleoenvironmental implications
volume: 71
related by: authorship_37234
freetext keyword: Benthic foraminifers; Cenomanian; El Abra Formation; Mexico; San Luis Potosí
type: Entity
doi: 10.18268/BSGM2019v71n3a5
type: Document
related by: authorship_37236
page start: 691
type: Thing
type: Information Content Entity
type: Continuant
date time value: article date 5866
has funding vehicle: Universidad Nacional de San Luis, UNSL
related by: authorship_37233
page end: 725
crisid: 5866
abstract: The Valles-San Luis Potosí Platform is part of an extensive carbonate platform system that rimmed the ancestral Gulf of Mexico during the middle (Albian) through Upper Cretaceous. The El Abra Formation consists of a shallow-water deposit; it contains a benthic foraminiferal assemblage that includes 18 species, which are described and illustrated in this paper. The studied successions from the upper part of the El Abra Formation were dated as mid-late Cenomanian. On the basis of these findings, two zones are proposed Pseudolituonella reicheli Assemblage Zone and Nezzazatinella picardi Interval Zone. The first Assemblage Zone is characterized by an abundant benthic foraminiferal association. It is overlain by the Nezzazatinella picardi Interval Zone where the species richness of the foraminiferal assemblage is reduced and later disappears. The benthic foraminiferal demise is coincident with major sea-level changes and an increase in siliciclastic input from the hemipelagic deposit of the Soyatal Formation, which contains abundant pithonellids and r and r-k strategist planktic foraminifera (Whiteinella archaeocretacea Partial Range Zone). Two stratigraphically correlative facies have been recognized in the El Abra Formation: the Taninul and the El Abra Facies. A warm, shallow-water, open marine platform deposit (Taninul Facies) is inferred. It includes peloidal-foraminiferal packstone, packstone-grainstone, and packstone-wackestone. A restricted environment (El Abra Facies) can be deduced from the abundant miliolids and ostreids. The texture is a wackestone-packstone. Another microfacies (Soyatal Formation) consists of wackestone-packstone with an acme of pithonellids and the occurrence of r and r-k strategist planktic foraminifers deposited during the platform drowning. © 2019, Instituto de Geologã-a, Universidad Nacional Autã3noma de Mã ©xico.
most specific type: Document
type: Generically Dependent Continuant
issue: 3
e iscopus: 2-s2.0-85073970850
has publication venue: Boletin de la Sociedad Geologica Mexicana
related by: authorship_37235
type: Article
accesstype: All Open Access, Gold
most specific type: Article
related by: authorship_37232
estado: published
origen: scopus

Universidad Nacional de San Luis, UNSL
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funding vehicle for: Mid-late Cenomanian larger benthic foraminifers from the El Abra Formation W Valles-San Luis Potosi Platform, central-eastern Mexico: Taxonomy, biostratigraphy and paleoenvironmental implications

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